File Coverage

File:	/usr/local/bin/automake
Coverage:	8.2%

line	stmt	bran	cond	sub	time	code
1						#!/usr/bin/perl -w
2						# -- perl --
3						# Generated from automake.in; do not edit by hand.
4
5	1				3	eval 'case $# in 0) exec /usr/bin/perl -S "$0";; *) exec /usr/bin/perl -S "$0" "$@";; esac'
6						if 0;
7
8						# automake - create Makefile.in from Makefile.am
9						# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
10						# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
11						# Inc.
12
13						# This program is free software; you can redistribute it and/or modify
14						# it under the terms of the GNU General Public License as published by
15						# the Free Software Foundation; either version 2, or (at your option)
16						# any later version.
17
18						# This program is distributed in the hope that it will be useful,
19						# but WITHOUT ANY WARRANTY; without even the implied warranty of
20						# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21						# GNU General Public License for more details.
22
23						# You should have received a copy of the GNU General Public License
24						# along with this program. If not, see <http://www.gnu.org/licenses/>.
25
26						# Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
27						# Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
28						# Alexandre Duret-Lutz <adl@gnu.org>.
29
30						package Language;
31
32						BEGIN
33						{
34	1		50	1	19	my $perllibdir = $ENV{'perllibdir'} \|\| '/usr/local/share/automake-1.11';
35	1				4	unshift @INC, (split ':', $perllibdir);
36
37						# Override SHELL. This is required on DJGPP so that system() uses
38						# bash, not COMMAND.COM which doesn't quote arguments properly.
39						# Other systems aren't expected to use $SHELL when Automake
40						# runs, but it should be safe to drop the `if DJGPP' guard if
41						# it turns up other systems need the same thing. After all,
42						# if SHELL is used, ./configure's SHELL is always better than
43						# the user's SHELL (which may be something like tcsh).
44	1	50			5	$ENV{'SHELL'} = '/bin/sh' if exists $ENV{'DJDIR'};
45						}
46
47	1 1 1			1	22 1 7	use Automake::Struct;
48	1				9	struct (# Short name of the language (c, f77...).
49						'name' => "\$",
50						# Nice name of the language (C, Fortran 77...).
51						'Name' => "\$",
52
53						# List of configure variables which must be defined.
54						'config_vars' => '@',
55
56						'ansi' => "\$",
57						# `pure' is `1' or `'. A `pure' language is one where, if
58						# all the files in a directory are of that language, then we
59						# do not require the C compiler or any code to call it.
60						'pure' => "\$",
61
62						'autodep' => "\$",
63
64						# Name of the compiling variable (COMPILE).
65						'compiler' => "\$",
66						# Content of the compiling variable.
67						'compile' => "\$",
68						# Flag to require compilation without linking (-c).
69						'compile_flag' => "\$",
70						'extensions' => '@',
71						# A subroutine to compute a list of possible extensions of
72						# the product given the input extensions.
73						# (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
74						'output_extensions' => "\$",
75						# A list of flag variables used in 'compile'.
76						# (defaults to [])
77						'flags' => "@",
78
79						# Any tag to pass to libtool while compiling.
80						'libtool_tag' => "\$",
81
82						# The file to use when generating rules for this language.
83						# The default is 'depend2'.
84						'rule_file' => "\$",
85
86						# Name of the linking variable (LINK).
87						'linker' => "\$",
88						# Content of the linking variable.
89						'link' => "\$",
90
91						# Name of the compiler variable (CC).
92						'ccer' => "\$",
93
94						# Name of the linker variable (LD).
95						'lder' => "\$",
96						# Content of the linker variable ($(CC)).
97						'ld' => "\$",
98
99						# Flag to specify the output file (-o).
100						'output_flag' => "\$",
101						'_finish' => "\$",
102
103						# This is a subroutine which is called whenever we finally
104						# determine the context in which a source file will be
105						# compiled.
106						'_target_hook' => "\$",
107
108						# If TRUE, nodist_ sources will be compiled using specific rules
109						# (i.e. not inference rules). The default is FALSE.
110						'nodist_specific' => "\$");
111
112
113						sub finish ($)
114						{
115	0			0	0	my ($self) = @_;
116	0	0			0	if (defined $self->_finish)
117						{
118	0 0				0 0	&{$self->_finish} (@_);
119						}
120						}
121
122						sub target_hook ($$$$%)
123						{
124	0			0	0	my ($self) = @_;
125	0	0			0	if (defined $self->_target_hook)
126						{
127	0 0				0 0	&{$self->_target_hook} (@_);
128						}
129						}
130
131						package Automake;
132
133	1 1 1			1	4 1 3	use strict;
134	1 1 1			1	11 1 6	use Automake::Config;
135						BEGIN
136						{
137	1	50		1	5	if ($perl_threads)
138						{
139	1				7	require threads;
140	1				3	import threads;
141	1				8	require Thread::Queue;
142	1				11	import Thread::Queue;
143						}
144						}
145	1 1 1			1	12 1 8	use Automake::General;
146	1 1 1			1	15 2 13	use Automake::XFile;
147	1 1 1			1	5 1 5	use Automake::Channels;
148	1 1 1			1	4 1 5	use Automake::ChannelDefs;
149	1 1 1			1	13 2 6	use Automake::Configure_ac;
150	1 1 1			1	5 1 2	use Automake::FileUtils;
151	1 1 1			1	2 1 8	use Automake::Location;
152	1 1 1			1	11 1 8	use Automake::Condition qw/TRUE FALSE/;
153	1 1 1			1	12 2 174	use Automake::DisjConditions;
154	1 1 1			1	12 2 6	use Automake::Options;
155	1 1 1			1	3 1 4	use Automake::Version;
156	1 1 1			1	11 1 8	use Automake::Variable;
157	1 1 1			1	5 1 3	use Automake::VarDef;
158	1 1 1			1	12 1 6	use Automake::Rule;
159	1 1 1			1	4 1 3	use Automake::RuleDef;
160	1 1 1			1	4 1 3	use Automake::Wrap 'makefile_wrap';
161	1 1 1			1	5 1 6	use File::Basename;
162	1 1 1			1	4 1 6	use File::Spec;
163	1 1 1			1	3 1 3	use Carp;
164
165						## ----------- ##
166						## Constants. ##
167						## ----------- ##
168
169						# Some regular expressions. One reason to put them here is that it
170						# makes indentation work better in Emacs.
171
172						# Writing singled-quoted-$-terminated regexes is a pain because
173						# perl-mode thinks of $' as the ${'} variable (instead of a $ followed
174						# by a closing quote. Letting perl-mode think the quote is not closed
175						# leads to all sort of misindentations. On the other hand, defining
176						# regexes as double-quoted strings is far less readable. So usually
177						# we will write:
178						#
179						# $REGEX = '^regex_value' . "\$";
180
181	1				2	my $IGNORE_PATTERN = '^\s##([^#\n].)?\n';
182	1				3	my $WHITE_PATTERN = '^\s*' . "\$";
183	1				1	my $COMMENT_PATTERN = '^#';
184	1				1	my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
185						# A rule has three parts: a list of targets, a list of dependencies,
186						# and optionally actions.
187	1				4	my $RULE_PATTERN =
188						"^($TARGET_PATTERN(?:(?:\\\\\n\|\\s)+$TARGET_PATTERN)) :([^=].*\|)\$";
189
190						# Only recognize leading spaces, not leading tabs. If we recognize
191						# leading tabs here then we need to make the reader smarter, because
192						# otherwise it will think rules like `foo=bar; \' are errors.
193	1				1	my $ASSIGNMENT_PATTERN = '^ ([^ \t=:+])\s([:+]?)=\s(.*)' . "\$";
194						# This pattern recognizes a Gnits version id and sets $1 if the
195						# release is an alpha release. We also allow a suffix which can be
196						# used to extend the version number with a "fork" identifier.
197	1				2	my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]\|\.\d+)?(-[A-Za-z0-9]+)?';
198
199	1				2	my $IF_PATTERN = '^if\s+(!?)\s([A-Za-z][A-Za-z0-9_])\s(?:#.)?' . "\$";
200	1				1	my $ELSE_PATTERN =
201						'^else(?:\s+(!?)\s([A-Za-z][A-Za-z0-9_]))?\s(?:#.)?' . "\$";
202	1				1	my $ENDIF_PATTERN =
203						'^endif(?:\s+(!?)\s([A-Za-z][A-Za-z0-9_]))?\s(?:#.)?' . "\$";
204	1				2	my $PATH_PATTERN = '(\w\|[+/.-])+';
205						# This will pass through anything not of the prescribed form.
206	1				4	my $INCLUDE_PATTERN = ('^include\s+'
207						. '((\$$top_srcdir$/' . $PATH_PATTERN . ')'
208						. '\|(\$$srcdir$/' . $PATH_PATTERN . ')'
209						. '\|([^/\$]' . $PATH_PATTERN . '))\s(#.)?' . "\$");
210
211						# Match `-d' as a command-line argument in a string.
212	1				2	my $DASH_D_PATTERN = "(^\|\\s)-d(\\s\|\$)";
213						# Directories installed during 'install-exec' phase.
214	1				1	my $EXEC_DIR_PATTERN =
215						'^(?:bin\|sbin\|libexec\|sysconf\|localstate\|lib\|pkglib\|.exec.)' . "\$";
216
217						# Values for AC_CANONICAL_*
218	1 1 1			1	5 1 4	use constant AC_CANONICAL_BUILD => 1;
219	1 1 1			1	3 1 3	use constant AC_CANONICAL_HOST => 2;
220	1 1 1			1	3 1 3	use constant AC_CANONICAL_TARGET => 3;
221
222						# Values indicating when something should be cleaned.
223	1 1 1			1	4 4 2	use constant MOSTLY_CLEAN => 0;
224	1 1 1			1	3 1 3	use constant CLEAN => 1;
225	1 1 1			1	3 1 2	use constant DIST_CLEAN => 2;
226	1 1 1			1	7 2 2	use constant MAINTAINER_CLEAN => 3;
227
228						# Libtool files.
229	1				4	my @libtool_files = qw(ltmain.sh config.guess config.sub);
230						# ltconfig appears here for compatibility with old versions of libtool.
231	1				3	my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
232
233						# Commonly found files we look for and automatically include in
234						# DISTFILES.
235	1				8	my @common_files =
236						(qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
237						COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
238						ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
239						depcomp elisp-comp install-sh libversion.in mdate-sh missing
240						mkinstalldirs py-compile texinfo.tex ylwrap),
241						@libtool_files, @libtool_sometimes);
242
243						# Commonly used files we auto-include, but only sometimes. This list
244						# is used for the --help output only.
245	1				4	my @common_sometimes =
246						qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
247						configure.ac configure.in stamp-vti);
248
249						# Standard directories from the GNU Coding Standards, and additional
250						# pkg* directories from Automake. Stored in a hash for fast member check.
251	32				59	my %standard_prefix =
252	1				4	map { $_ => 1 } (qw(bin data dataroot dvi exec html include info
253						lib libexec lisp localstate man man1 man2 man3
254						man4 man5 man6 man7 man8 man9 oldinclude pdf
255						pkgdatadir pkgincludedir pkglibdir pkglibexecdir
256						ps sbin sharedstate sysconf));
257
258						# Copyright on generated Makefile.ins.
259	1				5	my $gen_copyright = "\
260						# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
261						# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
262						# Inc.
263						# This Makefile.in is free software; the Free Software Foundation
264						# gives unlimited permission to copy and/or distribute it,
265						# with or without modifications, as long as this notice is preserved.
266
267						# This program is distributed in the hope that it will be useful,
268						# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
269						# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
270						# PARTICULAR PURPOSE.
271						";
272
273						# These constants are returned by the lang_*_rewrite functions.
274						# LANG_SUBDIR means that the resulting object file should be in a
275						# subdir if the source file is. In this case the file name cannot
276						# have `..' components.
277	1 1 1			1	4 2 2	use constant LANG_IGNORE => 0;
278	1 1 1			1	3 1 3	use constant LANG_PROCESS => 1;
279	1 1 1			1	3 1 3	use constant LANG_SUBDIR => 2;
280
281						# These are used when keeping track of whether an object can be built
282						# by two different paths.
283	1 1 1			1	4 1 3	use constant COMPILE_LIBTOOL => 1;
284	1 1 1			1	7 1 3	use constant COMPILE_ORDINARY => 2;
285
286						# We can't always associate a location to a variable or a rule,
287						# when it's defined by Automake. We use INTERNAL in this case.
288	1 1 1			1	4 1 4	use constant INTERNAL => new Automake::Location;
289
290						# Serialization keys for message queues.
291	1 1 1			1	3 2 2	use constant QUEUE_MESSAGE => "msg";
292	1 1 1			1	3 2 2	use constant QUEUE_CONF_FILE => "conf file";
293	1 1 1			1	3 1 2	use constant QUEUE_LOCATION => "location";
294	1 1 1			1	3 1 2	use constant QUEUE_STRING => "string";
295
296
297						## ---------------------------------- ##
298						## Variables related to the options. ##
299						## ---------------------------------- ##
300
301						# TRUE if we should always generate Makefile.in.
302	1				2	my $force_generation = 1;
303
304						# From the Perl manual.
305	1				20	my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
306
307						# TRUE if missing standard files should be installed.
308	1				2	my $add_missing = 0;
309
310						# TRUE if we should copy missing files; otherwise symlink if possible.
311	1				2	my $copy_missing = 0;
312
313						# TRUE if we should always update files that we know about.
314	1				2	my $force_missing = 0;
315
316
317						## ---------------------------------------- ##
318						## Variables filled during files scanning. ##
319						## ---------------------------------------- ##
320
321						# Name of the configure.ac file.
322	1				1	my $configure_ac;
323
324						# Files found by scanning configure.ac for LIBOBJS.
325	1				2	my %libsources = ();
326
327						# Names used in AC_CONFIG_HEADER call.
328	1				2	my @config_headers = ();
329
330						# Names used in AC_CONFIG_LINKS call.
331	1				2	my @config_links = ();
332
333						# Directory where output files go. Actually, output files are
334						# relative to this directory.
335	1				2	my $output_directory;
336
337						# List of Makefile.am's to process, and their corresponding outputs.
338	1				1	my @input_files = ();
339	1				1	my %output_files = ();
340
341						# Complete list of Makefile.am's that exist.
342	1				2	my @configure_input_files = ();
343
344						# List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
345						# and their outputs.
346	1				2	my @other_input_files = ();
347						# Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
348						# The keys are the files created by these macros.
349	1				1	my %ac_config_files_location = ();
350						# The condition under which AC_CONFIG_FOOS appears.
351	1				1	my %ac_config_files_condition = ();
352
353						# Directory to search for configure-required files. This
354						# will be computed by &locate_aux_dir and can be set using
355						# AC_CONFIG_AUX_DIR in configure.ac.
356						# $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
357	1				2	my $config_aux_dir = '';
358	1				1	my $config_aux_dir_set_in_configure_ac = 0;
359						# $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
360						# in Makefiles.
361	1				1	my $am_config_aux_dir = '';
362
363						# Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
364						# in configure.ac.
365	1				2	my $config_libobj_dir = '';
366
367						# Whether AM_GNU_GETTEXT has been seen in configure.ac.
368	1				1	my $seen_gettext = 0;
369						# Whether AM_GNU_GETTEXT([external]) is used.
370	1				1	my $seen_gettext_external = 0;
371						# Where AM_GNU_GETTEXT appears.
372	1				2	my $ac_gettext_location;
373						# Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
374	1				1	my $seen_gettext_intl = 0;
375
376						# Lists of tags supported by Libtool.
377	1				2	my %libtool_tags = ();
378						# 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
379						# uses AC_REQUIRE_AUX_FILE.
380	1				2	my $libtool_new_api = 0;
381
382						# Most important AC_CANONICAL_* macro seen so far.
383	1				1	my $seen_canonical = 0;
384						# Location of that macro.
385	1				1	my $canonical_location;
386
387						# Where AM_MAINTAINER_MODE appears.
388	1				1	my $seen_maint_mode;
389
390						# Actual version we've seen.
391	1				1	my $package_version = '';
392
393						# Where version is defined.
394	1				1	my $package_version_location;
395
396						# TRUE if we've seen AM_ENABLE_MULTILIB.
397	1				1	my $seen_multilib = 0;
398
399						# TRUE if we've seen AM_PROG_CC_C_O
400	1				2	my $seen_cc_c_o = 0;
401
402						# Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
403	1				2	my %required_aux_file = ();
404
405						# Where AM_INIT_AUTOMAKE is called;
406	1				1	my $seen_init_automake = 0;
407
408						# TRUE if we've seen AM_AUTOMAKE_VERSION.
409	1				1	my $seen_automake_version = 0;
410
411						# Hash table of discovered configure substitutions. Keys are names,
412						# values are `FILE:LINE' strings which are used by error message
413						# generation.
414	1				1	my %configure_vars = ();
415
416						# Ignored configure substitutions (i.e., variables not to be output in
417						# Makefile.in)
418	1				2	my %ignored_configure_vars = ();
419
420						# Files included by $configure_ac.
421	1				2	my @configure_deps = ();
422
423						# Greatest timestamp of configure's dependencies.
424	1				1	my $configure_deps_greatest_timestamp = 0;
425
426						# Hash table of AM_CONDITIONAL variables seen in configure.
427	1				1	my %configure_cond = ();
428
429						# This maps extensions onto language names.
430	1				2	my %extension_map = ();
431
432						# List of the DIST_COMMON files we discovered while reading
433						# configure.in
434	1				1	my $configure_dist_common = '';
435
436						# This maps languages names onto objects.
437	1				2	my %languages = ();
438						# Maps each linker variable onto a language object.
439	1				1	my %link_languages = ();
440
441						# maps extensions to needed source flags.
442	1				1	my %sourceflags = ();
443
444						# List of targets we must always output.
445						# FIXME: Complete, and remove falsely required targets.
446	1				13	my %required_targets =
447						(
448						'all' => 1,
449						'dvi' => 1,
450						'pdf' => 1,
451						'ps' => 1,
452						'info' => 1,
453						'install-info' => 1,
454						'install' => 1,
455						'install-data' => 1,
456						'install-exec' => 1,
457						'uninstall' => 1,
458
459						# FIXME: Not required, temporary hacks.
460						# Well, actually they are sort of required: the -recursive
461						# targets will run them anyway...
462						'html-am' => 1,
463						'dvi-am' => 1,
464						'pdf-am' => 1,
465						'ps-am' => 1,
466						'info-am' => 1,
467						'install-data-am' => 1,
468						'install-exec-am' => 1,
469						'install-html-am' => 1,
470						'install-dvi-am' => 1,
471						'install-pdf-am' => 1,
472						'install-ps-am' => 1,
473						'install-info-am' => 1,
474						'installcheck-am' => 1,
475						'uninstall-am' => 1,
476
477						'install-man' => 1,
478						);
479
480						# Set to 1 if this run will create the Makefile.in that distributes
481						# the files in config_aux_dir.
482	1				2	my $automake_will_process_aux_dir = 0;
483
484						# The name of the Makefile currently being processed.
485	1				1	my $am_file = 'BUG';
486
487
488						################################################################
489
490						## ------------------------------------------ ##
491						## Variables reset by &initialize_per_input. ##
492						## ------------------------------------------ ##
493
494						# Basename and relative dir of the input file.
495	1				1	my $am_file_name;
496	1				1	my $am_relative_dir;
497
498						# Same but wrt Makefile.in.
499	1				1	my $in_file_name;
500	1				1	my $relative_dir;
501
502						# Relative path to the top directory.
503	1				1	my $topsrcdir;
504
505						# Greatest timestamp of the output's dependencies (excluding
506						# configure's dependencies).
507	1				1	my $output_deps_greatest_timestamp;
508
509						# These variables are used when generating each Makefile.in.
510						# They hold the Makefile.in until it is ready to be printed.
511	1				1	my $output_vars;
512	1				1	my $output_all;
513	1				1	my $output_header;
514	1				1	my $output_rules;
515	1				7	my $output_trailer;
516
517						# This is the conditional stack, updated on if/else/endif, and
518						# used to build Condition objects.
519	1				1	my @cond_stack;
520
521						# This holds the set of included files.
522	1				1	my @include_stack;
523
524						# List of dependencies for the obvious targets.
525	1				1	my @all;
526	1				2	my @check;
527	1				1	my @check_tests;
528
529						# Keys in this hash table are files to delete. The associated
530						# value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
531	1				1	my %clean_files;
532
533						# Keys in this hash table are object files or other files in
534						# subdirectories which need to be removed. This only holds files
535						# which are created by compilations. The value in the hash indicates
536						# when the file should be removed.
537	1				1	my %compile_clean_files;
538
539						# Keys in this hash table are directories where we expect to build a
540						# libtool object. We use this information to decide what directories
541						# to delete.
542	1				1	my %libtool_clean_directories;
543
544						# Value of `$(SOURCES)', used by tags.am.
545	1				1	my @sources;
546						# Sources which go in the distribution.
547	1				1	my @dist_sources;
548
549						# This hash maps object file names onto their corresponding source
550						# file names. This is used to ensure that each object is created
551						# by a single source file.
552	1				1	my %object_map;
553
554						# This hash maps object file names onto an integer value representing
555						# whether this object has been built via ordinary compilation or
556						# libtool compilation (the COMPILE_* constants).
557	1				1	my %object_compilation_map;
558
559
560						# This keeps track of the directories for which we've already
561						# created dirstamp code. Keys are directories, values are stamp files.
562						# Several keys can share the same stamp files if they are equivalent
563						# (as are `.//foo' and `foo').
564	1				1	my %directory_map;
565
566						# All .P files.
567	1				1	my %dep_files;
568
569						# This is a list of all targets to run during "make dist".
570	1				1	my @dist_targets;
571
572						# Keep track of all programs declared in this Makefile, without
573						# $(EXEEXT). @substitutions@ are not listed.
574	1				1	my %known_programs;
575	1				1	my %known_libraries;
576
577						# Keys in this hash are the basenames of files which must depend on
578						# ansi2knr. Values are either the empty string, or the directory in
579						# which the ANSI source file appears; the directory must have a
580						# trailing `/'.
581	1				1	my %de_ansi_files;
582
583						# This keeps track of which extensions we've seen (that we care
584						# about).
585	1				1	my %extension_seen;
586
587						# This is random scratch space for the language finish functions.
588						# Don't randomly overwrite it; examine other uses of keys first.
589	1				2	my %language_scratch;
590
591						# We keep track of which objects need special (per-executable)
592						# handling on a per-language basis.
593	1				1	my %lang_specific_files;
594
595						# This is set when `handle_dist' has finished. Once this happens,
596						# we should no longer push on dist_common.
597	1				2	my $handle_dist_run;
598
599						# Used to store a set of linkers needed to generate the sources currently
600						# under consideration.
601	1				1	my %linkers_used;
602
603						# True if we need `LINK' defined. This is a hack.
604	1				1	my $need_link;
605
606						# Was get_object_extension run?
607						# FIXME: This is a hack. a better switch should be found.
608	1				1	my $get_object_extension_was_run;
609
610						# Record each file processed by make_paragraphs.
611	1				3	my %transformed_files;
612
613
614						################################################################
615
616						## ---------------------------------------------- ##
617						## Variables not reset by &initialize_per_input. ##
618						## ---------------------------------------------- ##
619
620						# Cache each file processed by make_paragraphs.
621						# (This is different from %transformed_files because
622						# %transformed_files is reset for each file while %am_file_cache
623						# it global to the run.)
624	1				1	my %am_file_cache;
625
626						################################################################
627
628						# var_SUFFIXES_trigger ($TYPE, $VALUE)
629						# ------------------------------------
630						# This is called by Automake::Variable::define() when SUFFIXES
631						# is defined ($TYPE eq '') or appended ($TYPE eq '+').
632						# The work here needs to be performed as a side-effect of the
633						# macro_define() call because SUFFIXES definitions impact
634						# on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
635						# the input am file.
636						sub var_SUFFIXES_trigger ($$)
637						{
638	0			0	0	my ($type, $value) = @_;
639	0				0	accept_extensions (split (' ', $value));
640						}
641	1				6	Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
642
643						################################################################
644
645						## --------------------------------- ##
646						## Forward subroutine declarations. ##
647						## --------------------------------- ##
648						sub register_language (%);
649						sub file_contents_internal ($$$%);
650						sub define_files_variable ($\@$$);
651
652
653						# &initialize_per_input ()
654						# ------------------------
655						# (Re)-Initialize per-Makefile.am variables.
656						sub initialize_per_input ()
657						{
658	0			0	0	reset_local_duplicates ();
659
660	0				0	$am_file_name = undef;
661	0				0	$am_relative_dir = undef;
662
663	0				0	$in_file_name = undef;
664	0				0	$relative_dir = undef;
665	0				0	$topsrcdir = undef;
666
667	0				0	$output_deps_greatest_timestamp = 0;
668
669	0				0	$output_vars = '';
670	0				0	$output_all = '';
671	0				0	$output_header = '';
672	0				0	$output_rules = '';
673	0				0	$output_trailer = '';
674
675	0				0	Automake::Options::reset;
676	0				0	Automake::Variable::reset;
677	0				0	Automake::Rule::reset;
678
679	0				0	@cond_stack = ();
680
681	0				0	@include_stack = ();
682
683	0				0	@all = ();
684	0				0	@check = ();
685	0				0	@check_tests = ();
686
687	0				0	%clean_files = ();
688	0				0	%compile_clean_files = ();
689
690						# We always include `.'. This isn't strictly correct.
691	0				0	%libtool_clean_directories = ('.' => 1);
692
693	0				0	@sources = ();
694	0				0	@dist_sources = ();
695
696	0				0	%object_map = ();
697	0				0	%object_compilation_map = ();
698
699	0				0	%directory_map = ();
700
701	0				0	%dep_files = ();
702
703	0				0	@dist_targets = ();
704
705	0				0	%known_programs = ();
706	0				0	%known_libraries= ();
707
708	0				0	%de_ansi_files = ();
709
710	0				0	%extension_seen = ();
711
712	0				0	%language_scratch = ();
713
714	0				0	%lang_specific_files = ();
715
716	0				0	$handle_dist_run = 0;
717
718	0				0	$need_link = 0;
719
720	0				0	$get_object_extension_was_run = 0;
721
722	0				0	%transformed_files = ();
723						}
724
725
726						################################################################
727
728						# Initialize our list of languages that are internally supported.
729
730						# C.
731	1				10	register_language ('name' => 'c',
732						'Name' => 'C',
733						'config_vars' => ['CC'],
734						'ansi' => 1,
735						'autodep' => '',
736						'flags' => ['CFLAGS', 'CPPFLAGS'],
737						'ccer' => 'CC',
738						'compiler' => 'COMPILE',
739						'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
740						'lder' => 'CCLD',
741						'ld' => '$(CC)',
742						'linker' => 'LINK',
743						'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
744						'compile_flag' => '-c',
745						'libtool_tag' => 'CC',
746						'extensions' => ['.c'],
747						'_finish' => \&lang_c_finish);
748
749						# C++.
750	1				8	register_language ('name' => 'cxx',
751						'Name' => 'C++',
752						'config_vars' => ['CXX'],
753						'linker' => 'CXXLINK',
754						'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
755						'autodep' => 'CXX',
756						'flags' => ['CXXFLAGS', 'CPPFLAGS'],
757						'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
758						'ccer' => 'CXX',
759						'compiler' => 'CXXCOMPILE',
760						'compile_flag' => '-c',
761						'output_flag' => '-o',
762						'libtool_tag' => 'CXX',
763						'lder' => 'CXXLD',
764						'ld' => '$(CXX)',
765						'pure' => 1,
766						'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
767
768						# Objective C.
769	1				7	register_language ('name' => 'objc',
770						'Name' => 'Objective C',
771						'config_vars' => ['OBJC'],
772						'linker' => 'OBJCLINK',
773						'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
774						'autodep' => 'OBJC',
775						'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
776						'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
777						'ccer' => 'OBJC',
778						'compiler' => 'OBJCCOMPILE',
779						'compile_flag' => '-c',
780						'output_flag' => '-o',
781						'lder' => 'OBJCLD',
782						'ld' => '$(OBJC)',
783						'pure' => 1,
784						'extensions' => ['.m']);
785
786						# Unified Parallel C.
787	1				7	register_language ('name' => 'upc',
788						'Name' => 'Unified Parallel C',
789						'config_vars' => ['UPC'],
790						'linker' => 'UPCLINK',
791						'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
792						'autodep' => 'UPC',
793						'flags' => ['UPCFLAGS', 'CPPFLAGS'],
794						'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
795						'ccer' => 'UPC',
796						'compiler' => 'UPCCOMPILE',
797						'compile_flag' => '-c',
798						'output_flag' => '-o',
799						'lder' => 'UPCLD',
800						'ld' => '$(UPC)',
801						'pure' => 1,
802						'extensions' => ['.upc']);
803
804						# Headers.
805						register_language ('name' => 'header',
806						'Name' => 'Header',
807						'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
808						'.hpp', '.inc'],
809						# No output.
810	7			7	18	'output_extensions' => sub { return () },
811						# Nothing to do.
812	1 0			0	8 0	'_finish' => sub { });
813
814						# Vala
815						register_language ('name' => 'vala',
816						'Name' => 'Vala',
817						'config_vars' => ['VALAC'],
818						'flags' => [],
819						'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
820						'ccer' => 'VALAC',
821						'compiler' => 'VALACOMPILE',
822						'extensions' => ['.vala'],
823	1			1	8	'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
824	1				2	return ($ext,) },
825	1				10	'rule_file' => 'vala',
826						'_finish' => \&lang_vala_finish,
827						'_target_hook' => \&lang_vala_target_hook,
828						'nodist_specific' => 1);
829
830						# Yacc (C & C++).
831						register_language ('name' => 'yacc',
832						'Name' => 'Yacc',
833						'config_vars' => ['YACC'],
834						'flags' => ['YFLAGS'],
835						'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
836						'ccer' => 'YACC',
837						'compiler' => 'YACCCOMPILE',
838						'extensions' => ['.y'],
839	1			1	6	'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
840	1				2	return ($ext,) },
841	1				13	'rule_file' => 'yacc',
842						'_finish' => \&lang_yacc_finish,
843						'_target_hook' => \&lang_yacc_target_hook,
844						'nodist_specific' => 1);
845						register_language ('name' => 'yaccxx',
846						'Name' => 'Yacc (C++)',
847						'config_vars' => ['YACC'],
848						'rule_file' => 'yacc',
849						'flags' => ['YFLAGS'],
850						'ccer' => 'YACC',
851						'compiler' => 'YACCCOMPILE',
852						'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
853						'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
854	4			4	6	'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
855	4				8	return ($ext,) },
856	1				10	'_finish' => \&lang_yacc_finish,
857						'_target_hook' => \&lang_yacc_target_hook,
858						'nodist_specific' => 1);
859
860						# Lex (C & C++).
861						register_language ('name' => 'lex',
862						'Name' => 'Lex',
863						'config_vars' => ['LEX'],
864						'rule_file' => 'lex',
865						'flags' => ['LFLAGS'],
866						'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
867						'ccer' => 'LEX',
868						'compiler' => 'LEXCOMPILE',
869						'extensions' => ['.l'],
870	1			1	2	'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
871	1				2	return ($ext,) },
872	1				14	'_finish' => \&lang_lex_finish,
873						'_target_hook' => \&lang_lex_target_hook,
874						'nodist_specific' => 1);
875						register_language ('name' => 'lexxx',
876						'Name' => 'Lex (C++)',
877						'config_vars' => ['LEX'],
878						'rule_file' => 'lex',
879						'flags' => ['LFLAGS'],
880						'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
881						'ccer' => 'LEX',
882						'compiler' => 'LEXCOMPILE',
883						'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
884	4			4	8	'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
885	4				8	return ($ext,) },
886	1				10	'_finish' => \&lang_lex_finish,
887						'_target_hook' => \&lang_lex_target_hook,
888						'nodist_specific' => 1);
889
890						# Assembler.
891	1				7	register_language ('name' => 'asm',
892						'Name' => 'Assembler',
893						'config_vars' => ['CCAS', 'CCASFLAGS'],
894
895						'flags' => ['CCASFLAGS'],
896						# Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
897						# or anything else required. They can also set CCAS.
898						# Or simply use Preprocessed Assembler.
899						'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
900						'ccer' => 'CCAS',
901						'compiler' => 'CCASCOMPILE',
902						'compile_flag' => '-c',
903						'output_flag' => '-o',
904						'extensions' => ['.s'],
905
906						# With assembly we still use the C linker.
907						'_finish' => \&lang_c_finish);
908
909						# Preprocessed Assembler.
910	1				8	register_language ('name' => 'cppasm',
911						'Name' => 'Preprocessed Assembler',
912						'config_vars' => ['CCAS', 'CCASFLAGS'],
913
914						'autodep' => 'CCAS',
915						'flags' => ['CCASFLAGS', 'CPPFLAGS'],
916						'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
917						'ccer' => 'CPPAS',
918						'compiler' => 'CPPASCOMPILE',
919						'compile_flag' => '-c',
920						'output_flag' => '-o',
921						'extensions' => ['.S', '.sx'],
922
923						# With assembly we still use the C linker.
924						'_finish' => \&lang_c_finish);
925
926						# Fortran 77
927	1				8	register_language ('name' => 'f77',
928						'Name' => 'Fortran 77',
929						'config_vars' => ['F77'],
930						'linker' => 'F77LINK',
931						'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
932						'flags' => ['FFLAGS'],
933						'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
934						'ccer' => 'F77',
935						'compiler' => 'F77COMPILE',
936						'compile_flag' => '-c',
937						'output_flag' => '-o',
938						'libtool_tag' => 'F77',
939						'lder' => 'F77LD',
940						'ld' => '$(F77)',
941						'pure' => 1,
942						'extensions' => ['.f', '.for']);
943
944						# Fortran
945	1				8	register_language ('name' => 'fc',
946						'Name' => 'Fortran',
947						'config_vars' => ['FC'],
948						'linker' => 'FCLINK',
949						'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
950						'flags' => ['FCFLAGS'],
951						'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
952						'ccer' => 'FC',
953						'compiler' => 'FCCOMPILE',
954						'compile_flag' => '-c',
955						'output_flag' => '-o',
956						'libtool_tag' => 'FC',
957						'lder' => 'FCLD',
958						'ld' => '$(FC)',
959						'pure' => 1,
960						'extensions' => ['.f90', '.f95', '.f03', '.f08']);
961
962						# Preprocessed Fortran
963	1				7	register_language ('name' => 'ppfc',
964						'Name' => 'Preprocessed Fortran',
965						'config_vars' => ['FC'],
966						'linker' => 'FCLINK',
967						'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
968						'lder' => 'FCLD',
969						'ld' => '$(FC)',
970						'flags' => ['FCFLAGS', 'CPPFLAGS'],
971						'ccer' => 'PPFC',
972						'compiler' => 'PPFCCOMPILE',
973						'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
974						'compile_flag' => '-c',
975						'output_flag' => '-o',
976						'libtool_tag' => 'FC',
977						'pure' => 1,
978						'extensions' => ['.F90','.F95', '.F03', '.F08']);
979
980						# Preprocessed Fortran 77
981						#
982						# The current support for preprocessing Fortran 77 just involves
983						# passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
984						# $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
985						# this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
986						# for `make' Version 3.76 Beta' (specifically, from info file
987						# `(make)Catalogue of Rules').
988						#
989						# A better approach would be to write an Autoconf test
990						# (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
991						# Fortran 77 compilers know how to do preprocessing. The Autoconf
992						# macro AC_PROG_FPP should test the Fortran 77 compiler first for
993						# preprocessing capabilities, and then fall back on cpp (if cpp were
994						# available).
995	1				8	register_language ('name' => 'ppf77',
996						'Name' => 'Preprocessed Fortran 77',
997						'config_vars' => ['F77'],
998						'linker' => 'F77LINK',
999						'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1000						'lder' => 'F77LD',
1001						'ld' => '$(F77)',
1002						'flags' => ['FFLAGS', 'CPPFLAGS'],
1003						'ccer' => 'PPF77',
1004						'compiler' => 'PPF77COMPILE',
1005						'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
1006						'compile_flag' => '-c',
1007						'output_flag' => '-o',
1008						'libtool_tag' => 'F77',
1009						'pure' => 1,
1010						'extensions' => ['.F']);
1011
1012						# Ratfor.
1013	1				7	register_language ('name' => 'ratfor',
1014						'Name' => 'Ratfor',
1015						'config_vars' => ['F77'],
1016						'linker' => 'F77LINK',
1017						'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1018						'lder' => 'F77LD',
1019						'ld' => '$(F77)',
1020						'flags' => ['RFLAGS', 'FFLAGS'],
1021						# FIXME also FFLAGS.
1022						'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1023						'ccer' => 'F77',
1024						'compiler' => 'RCOMPILE',
1025						'compile_flag' => '-c',
1026						'output_flag' => '-o',
1027						'libtool_tag' => 'F77',
1028						'pure' => 1,
1029						'extensions' => ['.r']);
1030
1031						# Java via gcj.
1032	1				8	register_language ('name' => 'java',
1033						'Name' => 'Java',
1034						'config_vars' => ['GCJ'],
1035						'linker' => 'GCJLINK',
1036						'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1037						'autodep' => 'GCJ',
1038						'flags' => ['GCJFLAGS'],
1039						'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1040						'ccer' => 'GCJ',
1041						'compiler' => 'GCJCOMPILE',
1042						'compile_flag' => '-c',
1043						'output_flag' => '-o',
1044						'libtool_tag' => 'GCJ',
1045						'lder' => 'GCJLD',
1046						'ld' => '$(GCJ)',
1047						'pure' => 1,
1048						'extensions' => ['.java', '.class', '.zip', '.jar']);
1049
1050						################################################################
1051
1052						# Error reporting functions.
1053
1054						# err_am ($MESSAGE, [%OPTIONS])
1055						# -----------------------------
1056						# Uncategorized errors about the current Makefile.am.
1057						sub err_am ($;%)
1058						{
1059	0			0	0	msg_am ('error', @_);
1060						}
1061
1062						# err_ac ($MESSAGE, [%OPTIONS])
1063						# -----------------------------
1064						# Uncategorized errors about configure.ac.
1065						sub err_ac ($;%)
1066						{
1067	0			0	0	msg_ac ('error', @_);
1068						}
1069
1070						# msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1071						# ---------------------------------------
1072						# Messages about about the current Makefile.am.
1073						sub msg_am ($$;%)
1074						{
1075	0			0	0	my ($channel, $msg, %opts) = @_;
1076	0				0	msg $channel, "${am_file}.am", $msg, %opts;
1077						}
1078
1079						# msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1080						# ---------------------------------------
1081						# Messages about about configure.ac.
1082						sub msg_ac ($$;%)
1083						{
1084	0			0	0	my ($channel, $msg, %opts) = @_;
1085	0				0	msg $channel, $configure_ac, $msg, %opts;
1086						}
1087
1088						################################################################
1089
1090						# subst ($TEXT)
1091						# -------------
1092						# Return a configure-style substitution using the indicated text.
1093						# We do this to avoid having the substitutions directly in automake.in;
1094						# when we do that they are sometimes removed and this causes confusion
1095						# and bugs.
1096						sub subst ($)
1097						{
1098	0			0	0	my ($text) = @_;
1099	0				0	return '@' . $text . '@';
1100						}
1101
1102						################################################################
1103
1104
1105						# $BACKPATH
1106						# &backname ($REL-DIR)
1107						# --------------------
1108						# If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1109						# For instance `src/foo' => `../..'.
1110						# Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1111						sub backname ($)
1112						{
1113	0			0	0	my ($file) = @_;
1114	0				0	my @res;
1115	0				0	foreach (split (/\//, $file))
1116						{
1117	0	0	0		0	next if $_ eq '.' \|\| $_ eq '';
1118	0	0			0	if ($_ eq '..')
1119						{
1120						pop @res
1121	0	0			0	or prog_error ("trying to reverse path `$file' pointing outside tree");
1122						}
1123						else
1124						{
1125	0				0	push (@res, '..');
1126						}
1127						}
1128	0		0		0	return join ('/', @res) \|\| '.';
1129						}
1130
1131						################################################################
1132
1133						# `silent-rules' mode handling functions.
1134
1135						# verbose_var (NAME)
1136						# ------------------
1137						# The public variable stem used to implement `silent-rules'.
1138						sub verbose_var ($)
1139						{
1140	0			0	0	my ($name) = @_;
1141	0				0	return 'AM_V_' . $name;
1142						}
1143
1144						# verbose_private_var (NAME)
1145						# --------------------------
1146						# The naming policy for the private variables for `silent-rules'.
1147						sub verbose_private_var ($)
1148						{
1149	0			0	0	my ($name) = @_;
1150	0				0	return 'am__v_' . $name;
1151						}
1152
1153						# define_verbose_var (NAME, VAL)
1154						# ------------------------------
1155						# For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1156						sub define_verbose_var ($$)
1157						{
1158	0			0	0	my ($name, $val) = @_;
1159	0				0	my $var = verbose_var ($name);
1160	0				0	my $pvar = verbose_private_var ($name);
1161	0				0	my $silent_var = $pvar . '_0';
1162	0	0			0	if (option 'silent-rules')
1163						{
1164						# Using `$V' instead of `$(V)' breaks IRIX make.
1165	0				0	define_variable ($var, '$(' . $pvar . '_$(V))', INTERNAL);
1166	0				0	define_variable ($pvar . '_', '$(' . $pvar . '_$(AM_DEFAULT_VERBOSITY))', INTERNAL);
1167	0	0			0	Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1168						'', INTERNAL, VAR_ASIS)
1169						if (! vardef ($silent_var, TRUE));
1170						}
1171						}
1172
1173						# Above should not be needed in the general automake code.
1174
1175						# verbose_flag (NAME)
1176						# -------------------
1177						# Contents of %VERBOSE%: variable to expand before rule command.
1178						sub verbose_flag ($)
1179						{
1180	0			0	0	my ($name) = @_;
1181	0	0			0	return '$(' . verbose_var ($name) . ')'
1182						if (option 'silent-rules');
1183	0				0	return '';
1184						}
1185
1186						# silent_flag
1187						# -----------
1188						# Contents of %SILENT%: variable to expand to `@' when silent.
1189						sub silent_flag ()
1190						{
1191	0			0	0	return verbose_flag ('at');
1192						}
1193
1194						# define_verbose_tagvar (NAME)
1195						# ----------------------------
1196						# Engage the needed `silent-rules' machinery for tag NAME.
1197						sub define_verbose_tagvar ($)
1198						{
1199	0			0	0	my ($name) = @_;
1200	0	0			0	if (option 'silent-rules')
1201						{
1202	0				0	define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1203	0				0	define_verbose_var ('at', '@');
1204						}
1205						}
1206
1207						# define_verbose_libtool
1208						# ----------------------
1209						# Engage the needed `silent-rules' machinery for `libtool --silent'.
1210						sub define_verbose_libtool ()
1211						{
1212	0			0	0	define_verbose_var ('lt', '--silent');
1213	0				0	return verbose_flag ('lt');
1214						}
1215
1216
1217						################################################################
1218
1219
1220						# Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1221						sub handle_options
1222						{
1223	0			0	0	my $var = var ('AUTOMAKE_OPTIONS');
1224	0	0			0	if ($var)
1225						{
1226	0	0			0	if ($var->has_conditional_contents)
1227						{
1228	0				0	msg_var ('unsupported', $var,
1229						"`AUTOMAKE_OPTIONS' cannot have conditional contents");
1230						}
1231	0				0	foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1232						location => 1))
1233						{
1234	0				0	my ($loc, $value) = @$locvals;
1235	0	0			0	return 1 if (process_option_list ($loc, $value))
1236						}
1237						}
1238
1239						# Override portability-recursive warning.
1240	0	0			0	switch_warning ('no-portability-recursive')
1241						if option 'silent-rules';
1242
1243	0	0			0	if ($strictness == GNITS)
1244						{
1245	0				0	set_option ('readme-alpha', INTERNAL);
1246	0				0	set_option ('std-options', INTERNAL);
1247	0				0	set_option ('check-news', INTERNAL);
1248						}
1249
1250	0				0	return 0;
1251						}
1252
1253						# shadow_unconditionally ($varname, $where)
1254						# -----------------------------------------
1255						# Return a $(variable) that contains all possible values
1256						# $varname can take.
1257						# If the VAR wasn't defined conditionally, return $(VAR).
1258						# Otherwise we create an am__VAR_DIST variable which contains
1259						# all possible values, and return $(am__VAR_DIST).
1260						sub shadow_unconditionally ($$)
1261						{
1262	0			0	0	my ($varname, $where) = @_;
1263	0				0	my $var = var $varname;
1264	0	0			0	if ($var->has_conditional_contents)
1265						{
1266	0				0	$varname = "am__${varname}_DIST";
1267	0				0	my @files = uniq ($var->value_as_list_recursive);
1268	0				0	define_pretty_variable ($varname, TRUE, $where, @files);
1269						}
1270	0				0	return "\$($varname)"
1271						}
1272
1273						# get_object_extension ($EXTENSION)
1274						# ---------------------------------
1275						# Prefix $EXTENSION with $U if ansi2knr is in use.
1276						sub get_object_extension ($)
1277						{
1278	0			0	0	my ($extension) = @_;
1279
1280						# Check for automatic de-ANSI-fication.
1281	0	0			0	$extension = '$U' . $extension
1282						if option 'ansi2knr';
1283
1284	0				0	$get_object_extension_was_run = 1;
1285
1286	0				0	return $extension;
1287						}
1288
1289						# check_user_variables (@LIST)
1290						# ----------------------------
1291						# Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1292						# otherwise.
1293						sub check_user_variables (@)
1294						{
1295	0			0	0	my @dont_override = @_;
1296	0				0	foreach my $flag (@dont_override)
1297						{
1298	0				0	my $var = var $flag;
1299	0	0			0	if ($var)
1300						{
1301	0				0	for my $cond ($var->conditions->conds)
1302						{
1303	0	0			0	if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1304						{
1305	0				0	msg_cond_var ('gnu', $cond, $flag,
1306						"`$flag' is a user variable, "
1307						. "you should not override it;\n"
1308						. "use `AM_$flag' instead.");
1309						}
1310						}
1311						}
1312						}
1313						}
1314
1315						# Call finish function for each language that was used.
1316						sub handle_languages
1317						{
1318	0	0		0	0	if (! option 'no-dependencies')
1319						{
1320						# Include auto-dep code. Don't include it if DEP_FILES would
1321						# be empty.
1322	0	0	0		0	if (&saw_sources_p (0) && keys %dep_files)
1323						{
1324						# Set location of depcomp.
1325	0				0	&define_variable ('depcomp',
1326						"\$(SHELL) $am_config_aux_dir/depcomp",
1327						INTERNAL);
1328	0				0	&define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1329
1330	0				0	require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1331
1332	0				0	my @deplist = sort keys %dep_files;
1333						# Generate each `include' individually. Irix 6 make will
1334						# not properly include several files resulting from a
1335						# variable expansion; generating many separate includes
1336						# seems safest.
1337	0				0	$output_rules .= "\n";
1338	0				0	foreach my $iter (@deplist)
1339						{
1340	0				0	$output_rules .= (subst ('AMDEP_TRUE')
1341						. subst ('am__include')
1342						. ' '
1343						. subst ('am__quote')
1344						. $iter
1345						. subst ('am__quote')
1346						. "\n");
1347						}
1348
1349						# Compute the set of directories to remove in distclean-depend.
1350	0 0				0 0	my @depdirs = uniq (map { dirname ($_) } @deplist);
1351	0				0	$output_rules .= &file_contents ('depend',
1352						new Automake::Location,
1353						DEPDIRS => "@depdirs");
1354						}
1355						}
1356						else
1357						{
1358	0				0	&define_variable ('depcomp', '', INTERNAL);
1359	0				0	&define_variable ('am__depfiles_maybe', '', INTERNAL);
1360						}
1361
1362	0				0	my %done;
1363
1364						# Is the c linker needed?
1365	0				0	my $needs_c = 0;
1366	0				0	foreach my $ext (sort keys %extension_seen)
1367						{
1368	0	0			0	next unless $extension_map{$ext};
1369
1370	0				0	my $lang = $languages{$extension_map{$ext}};
1371
1372	0		0		0	my $rule_file = $lang->rule_file \|\| 'depend2';
1373
1374						# Get information on $LANG.
1375	0				0	my $pfx = $lang->autodep;
1376	0	0			0	my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1377
1378	0	0	0		0	my ($AMDEP, $FASTDEP) =
1379						(option 'no-dependencies' \|\| $lang->autodep eq 'no')
1380						? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1381
1382	0		0		0	my $verbose = verbose_flag ($lang->ccer \|\| 'GEN');
1383	0				0	my $silent = silent_flag ();
1384
1385	0		0		0	my %transform = ('EXT' => $ext,
1386						'PFX' => $pfx,
1387						'FPFX' => $fpfx,
1388						'AMDEP' => $AMDEP,
1389						'FASTDEP' => $FASTDEP,
1390						'-c' => $lang->compile_flag \|\| '',
1391						# These are not used, but they need to be defined
1392						# so &transform do not complain.
1393						SUBDIROBJ => 0,
1394						'DERIVED-EXT' => 'BUG',
1395						DIST_SOURCE => 1,
1396						VERBOSE => $verbose,
1397						SILENT => $silent,
1398						);
1399
1400						# Generate the appropriate rules for this extension.
1401	0	0	0		0	if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1402						\|\| defined $lang->compile)
1403						{
1404						# Some C compilers don't support -c -o. Use it only if really
1405						# needed.
1406	0		0		0	my $output_flag = $lang->output_flag \|\| '';
1407	0	0	0		0	$output_flag = '-o'
1408						if (! $output_flag
1409						&& $lang->name eq 'c'
1410						&& option 'subdir-objects');
1411
1412						# Compute a possible derived extension.
1413						# This is not used by depend2.am.
1414	0 0				0 0	my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1415
1416						# When we output an inference rule like `.c.o:' we
1417						# have two cases to consider: either subdir-objects
1418						# is used, or it is not.
1419						#
1420						# In the latter case the rule is used to build objects
1421						# in the current directory, and dependencies always
1422						# go into `./$(DEPDIR)/'. We can hard-code this value.
1423						#
1424						# In the former case the rule can be used to build
1425						# objects in sub-directories too. Dependencies should
1426						# go into the appropriate sub-directories, e.g.,
1427						# `sub/$(DEPDIR)/'. The value of this directory
1428						# needs to be computed on-the-fly.
1429						#
1430						# DEPBASE holds the name of this directory, plus the
1431						# basename part of the object file (extensions Po, TPo,
1432						# Plo, TPlo will be added later as appropriate). It is
1433						# either hardcoded, or a shell variable (`$depbase') that
1434						# will be computed by the rule.
1435	0	0			0	my $depbase =
1436						option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1437	0		0		0	$output_rules .=
1438						file_contents ($rule_file,
1439						new Automake::Location,
1440						%transform,
1441						GENERIC => 1,
1442
1443						'DERIVED-EXT' => $der_ext,
1444
1445						DEPBASE => $depbase,
1446						BASE => '$*',
1447						SOURCE => '$<',
1448						SOURCEFLAG => $sourceflags{$ext} \|\| '',
1449						OBJ => '$@',
1450						OBJOBJ => '$@',
1451						LTOBJ => '$@',
1452
1453						COMPILE => '$(' . $lang->compiler . ')',
1454						LTCOMPILE => '$(LT' . $lang->compiler . ')',
1455						-o => $output_flag,
1456						SUBDIROBJ => !! option 'subdir-objects');
1457						}
1458
1459						# Now include code for each specially handled object with this
1460						# language.
1461	0				0	my %seen_files = ();
1462	0 0				0 0	foreach my $file (@{$lang_specific_files{$lang->name}})
1463						{
1464	0				0	my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1465
1466						# We might see a given object twice, for instance if it is
1467						# used under different conditions.
1468	0	0			0	next if defined $seen_files{$obj};
1469	0				0	$seen_files{$obj} = 1;
1470
1471	0	0			0	prog_error ("found " . $lang->name .
1472						" in handle_languages, but compiler not defined")
1473						unless defined $lang->compile;
1474
1475	0				0	my $obj_compile = $lang->compile;
1476
1477						# Rewrite each occurrence of `AM_$flag' in the compile
1478						# rule into `${derived}_$flag' if it exists.
1479	0 0				0 0	for my $flag (@{$lang->flags})
1480						{
1481	0				0	my $val = "${derived}_$flag";
1482	0	0			0	$obj_compile =~ s/$AM_$flag$/$$val$/
1483						if set_seen ($val);
1484						}
1485
1486	0				0	my $libtool_tag = '';
1487	0	0	0		0	if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1488						{
1489	0				0	$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1490						}
1491
1492	0				0	my $ptltflags = "${derived}_LIBTOOLFLAGS";
1493	0	0			0	$ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1494
1495	0				0	my $ltverbose = define_verbose_libtool ();
1496	0				0	my $obj_ltcompile =
1497						"\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1498						. "--mode=compile $obj_compile";
1499
1500						# We _need_ `-o' for per object rules.
1501	0		0		0	my $output_flag = $lang->output_flag \|\| '-o';
1502
1503	0				0	my $depbase = dirname ($obj);
1504	0	0			0	$depbase = ''
1505						if $depbase eq '.';
1506	0	0			0	$depbase .= '/'
1507						unless $depbase eq '';
1508	0				0	$depbase .= '$(DEPDIR)/' . basename ($obj);
1509
1510						# Support for deansified files in subdirectories is ugly
1511						# enough to deserve an explanation.
1512						#
1513						# A Note about normal ansi2knr processing first. On
1514						#
1515						# AUTOMAKE_OPTIONS = ansi2knr
1516						# bin_PROGRAMS = foo
1517						# foo_SOURCES = foo.c
1518						#
1519						# we generate rules similar to:
1520						#
1521						# foo: foo$U.o; link ...
1522						# foo$U.o: foo$U.c; compile ...
1523						# foo_.c: foo.c; ansi2knr ...
1524						#
1525						# this is fairly compact, and will call ansi2knr depending
1526						# on the value of $U (`' or `_').
1527						#
1528						# It's harder with subdir sources. On
1529						#
1530						# AUTOMAKE_OPTIONS = ansi2knr
1531						# bin_PROGRAMS = foo
1532						# foo_SOURCES = sub/foo.c
1533						#
1534						# we have to create foo_.c in the current directory.
1535						# (Unless the user asks 'subdir-objects'.) This is important
1536						# in case the same file (`foo.c') is compiled from other
1537						# directories with different cpp options: foo_.c would
1538						# be preprocessed for only one set of options if it were
1539						# put in the subdirectory.
1540						#
1541						# Because foo$U.o must be built from either foo_.c or
1542						# sub/foo.c we can't be as concise as in the first example.
1543						# Instead we output
1544						#
1545						# foo: foo$U.o; link ...
1546						# foo_.o: foo_.c; compile ...
1547						# foo.o: sub/foo.c; compile ...
1548						# foo_.c: foo.c; ansi2knr ...
1549						#
1550						# This is why we'll now transform $rule_file twice
1551						# if we detect this case.
1552						# A first time we output the compile rule with `$U'
1553						# replaced by `_' and the source directory removed,
1554						# and another time we simply remove `$U'.
1555						#
1556						# Note that at this point $source (as computed by
1557						# &handle_single_transform) is `sub/foo$U.c'.
1558						# This can be confusing: it can be used as-is when
1559						# subdir-objects is set, otherwise you have to know
1560						# it really means `foo_.c' or `sub/foo.c'.
1561	0				0	my $objdir = dirname ($obj);
1562	0				0	my $srcdir = dirname ($source);
1563	0	0	0		0	if ($lang->ansi && $obj =~ /\$U/)
1564						{
1565	0	0			0	prog_error "`$obj' contains \$U, but `$source' doesn't."
1566						if $source !~ /\$U/;
1567
1568	0				0	(my $source_ = $source) =~ s/\$U/_/g;
1569						# Output an additional rule if _.c and .c are not in
1570						# the same directory. (_.c is always in $objdir.)
1571	0	0			0	if ($objdir ne $srcdir)
1572						{
1573	0				0	(my $obj_ = $obj) =~ s/\$U/_/g;
1574	0				0	(my $depbase_ = $depbase) =~ s/\$U/_/g;
1575	0				0	$source_ = basename ($source_);
1576
1577	0		0		0	$output_rules .=
1578						file_contents ($rule_file,
1579						new Automake::Location,
1580						%transform,
1581						GENERIC => 0,
1582
1583						DEPBASE => $depbase_,
1584						BASE => $obj_,
1585						SOURCE => $source_,
1586						SOURCEFLAG => $sourceflags{$srcext} \|\| '',
1587						OBJ => "$obj_$myext",
1588						OBJOBJ => "$obj_.obj",
1589						LTOBJ => "$obj_.lo",
1590
1591						COMPILE => $obj_compile,
1592						LTCOMPILE => $obj_ltcompile,
1593						-o => $output_flag,
1594						%file_transform);
1595	0				0	$obj =~ s/\$U//g;
1596	0				0	$depbase =~ s/\$U//g;
1597	0				0	$source =~ s/\$U//g;
1598						}
1599						}
1600
1601						$output_rules .=
1602	0		0		0	file_contents ($rule_file,
1603						new Automake::Location,
1604						%transform,
1605						GENERIC => 0,
1606
1607						DEPBASE => $depbase,
1608						BASE => $obj,
1609						SOURCE => $source,
1610						SOURCEFLAG => $sourceflags{$srcext} \|\| '',
1611						# Use $myext and not `.o' here, in case
1612						# we are actually building a new source
1613						# file -- e.g. via yacc.
1614						OBJ => "$obj$myext",
1615						OBJOBJ => "$obj.obj",
1616						LTOBJ => "$obj.lo",
1617
1618						VERBOSE => $verbose,
1619						SILENT => $silent,
1620						COMPILE => $obj_compile,
1621						LTCOMPILE => $obj_ltcompile,
1622						-o => $output_flag,
1623						%file_transform);
1624						}
1625
1626						# The rest of the loop is done once per language.
1627	0	0			0	next if defined $done{$lang};
1628	0				0	$done{$lang} = 1;
1629
1630						# Load the language dependent Makefile chunks.
1631	0 0				0 0	my %lang = map { uc ($_) => 0 } keys %languages;
1632	0				0	$lang{uc ($lang->name)} = 1;
1633	0				0	$output_rules .= file_contents ('lang-compile',
1634						new Automake::Location,
1635						%transform, %lang);
1636
1637						# If the source to a program consists entirely of code from a
1638						# `pure' language, for instance C++ or Fortran 77, then we
1639						# don't need the C compiler code. However if we run into
1640						# something unusual then we do generate the C code. There are
1641						# probably corner cases here that do not work properly.
1642						# People linking Java code to Fortran code deserve pain.
1643	0		0		0	$needs_c \|\|= ! $lang->pure;
1644
1645	0	0			0	define_compiler_variable ($lang)
1646						if ($lang->compile);
1647
1648	0	0			0	define_linker_variable ($lang)
1649						if ($lang->link);
1650
1651	0				0	require_variables ("$am_file.am", $lang->Name . " source seen",
1652	0				0	TRUE, @{$lang->config_vars});
1653
1654						# Call the finisher.
1655	0				0	$lang->finish;
1656
1657						# Flags listed in `->flags' are user variables (per GNU Standards),
1658						# they should not be overridden in the Makefile...
1659	0 0				0 0	my @dont_override = @{$lang->flags};
1660						# ... and so is LDFLAGS.
1661	0	0			0	push @dont_override, 'LDFLAGS' if $lang->link;
1662
1663	0				0	check_user_variables @dont_override;
1664						}
1665
1666						# If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1667						# suffix rule was learned), don't bother with the C stuff. But if
1668						# anything else creeps in, then use it.
1669	0	0	0		0	$needs_c = 1
1670						if $need_link \|\| suffix_rules_count > 1;
1671
1672	0	0			0	if ($needs_c)
1673						{
1674	0	0			0	&define_compiler_variable ($languages{'c'})
1675						unless defined $done{$languages{'c'}};
1676	0				0	define_linker_variable ($languages{'c'});
1677						}
1678
1679						# Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1680	0				0	define_verbose_tagvar ('GEN');
1681						}
1682
1683
1684						# append_exeext { PREDICATE } $MACRO
1685						# ----------------------------------
1686						# Append $(EXEEXT) to each filename in $F appearing in the Makefile
1687						# variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1688						# ignored.
1689						#
1690						# This is typically used on all filenames of *_PROGRAMS, and filenames
1691						# of TESTS that are programs.
1692						sub append_exeext (&$)
1693						{
1694	0			0	0	my ($pred, $macro) = @_;
1695
1696						transform_variable_recursively
1697						($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1698						sub {
1699	0			0	0	my ($subvar, $val, $cond, $full_cond) = @_;
1700						# Append $(EXEEXT) unless the user did it already, or it's a
1701						# @substitution@.
1702	0	0	0		0	$val .= '$(EXEEXT)'
1703						if $val !~ /(?:\$$EXEEXT$$\|^[@]\w+[@]$)/ && &$pred ($val);
1704	0				0	return $val;
1705	0				0	});
1706						}
1707
1708
1709						# Check to make sure a source defined in LIBOBJS is not explicitly
1710						# mentioned. This is a separate function (as opposed to being inlined
1711						# in handle_source_transform) because it isn't always appropriate to
1712						# do this check.
1713						sub check_libobjs_sources
1714						{
1715	0			0	0	my ($one_file, $unxformed) = @_;
1716
1717	0				0	foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1718						'dist_EXTRA_', 'nodist_EXTRA_')
1719						{
1720	0				0	my @files;
1721	0				0	my $varname = $prefix . $one_file . '_SOURCES';
1722	0				0	my $var = var ($varname);
1723	0	0 0			0	if ($var)
1724						{
1725	0				0	@files = $var->value_as_list_recursive;
1726						}
1727						elsif ($prefix eq '')
1728						{
1729	0				0	@files = ($unxformed . '.c');
1730						}
1731						else
1732						{
1733	0				0	next;
1734						}
1735
1736	0				0	foreach my $file (@files)
1737						{
1738	0	0			0	err_var ($prefix . $one_file . '_SOURCES',
1739						"automatically discovered file `$file' should not" .
1740						" be explicitly mentioned")
1741						if defined $libsources{$file};
1742						}
1743						}
1744						}
1745
1746
1747						# @OBJECTS
1748						# handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1749						# -----------------------------------------------------------------------------
1750						# Does much of the actual work for handle_source_transform.
1751						# Arguments are:
1752						# $VAR is the name of the variable that the source filenames come from
1753						# $TOPPARENT is the name of the _SOURCES variable which is being processed
1754						# $DERIVED is the name of resulting executable or library
1755						# $OBJ is the object extension (e.g., `$U.lo')
1756						# $FILE the source file to transform
1757						# %TRANSFORM contains extras arguments to pass to file_contents
1758						# when producing explicit rules
1759						# Result is a list of the names of objects
1760						# %linkers_used will be updated with any linkers needed
1761						sub handle_single_transform ($$$$$%)
1762						{
1763	0			0	0	my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1764	0				0	my @files = ($_file);
1765	0				0	my @result = ();
1766	0				0	my $nonansi_obj = $obj;
1767	0				0	$nonansi_obj =~ s/\$U//g;
1768
1769						# Turn sources into objects. We use a while loop like this
1770						# because we might add to @files in the loop.
1771	0				0	while (scalar @files > 0)
1772						{
1773	0				0	$_ = shift @files;
1774
1775						# Configure substitutions in _SOURCES variables are errors.
1776	0	0			0	if (/^\@.*\@$/)
1777						{
1778	0				0	my $parent_msg = '';
1779	0	0			0	$parent_msg = "\nand is referred to from `$topparent'"
1780						if $topparent ne $var->name;
1781	0				0	err_var ($var,
1782						"`" . $var->name . "' includes configure substitution `$_'"
1783						. $parent_msg . ";\nconfigure " .
1784						"substitutions are not allowed in _SOURCES variables");
1785	0				0	next;
1786						}
1787
1788						# If the source file is in a subdirectory then the `.o' is put
1789						# into the current directory, unless the subdir-objects option
1790						# is in effect.
1791
1792						# Split file name into base and extension.
1793	0	0			0	next if ! /^(?:(.)\/)?([^\/])($KNOWN_EXTENSIONS_PATTERN)$/;
1794	0				0	my $full = $_;
1795	0		0		0	my $directory = $1 \|\| '';
1796	0				0	my $base = $2;
1797	0				0	my $extension = $3;
1798
1799						# We must generate a rule for the object if it requires its own flags.
1800	0				0	my $renamed = 0;
1801	0				0	my ($linker, $object);
1802
1803						# This records whether we've seen a derived source file (e.g.
1804						# yacc output).
1805	0				0	my $derived_source = 0;
1806
1807						# This holds the `aggregate context' of the file we are
1808						# currently examining. If the file is compiled with
1809						# per-object flags, then it will be the name of the object.
1810						# Otherwise it will be `AM'. This is used by the target hook
1811						# language function.
1812	0				0	my $aggregate = 'AM';
1813
1814	0				0	$extension = &derive_suffix ($extension, $nonansi_obj);
1815	0				0	my $lang;
1816	0	0 0	0		0	if ($extension_map{$extension} &&
1817						($lang = $languages{$extension_map{$extension}}))
1818						{
1819						# Found the language, so see what it says.
1820	0				0	&saw_extension ($extension);
1821
1822						# Do we have per-executable flags for this executable?
1823	0				0	my $have_per_exec_flags = 0;
1824	0 0				0 0	my @peflags = @{$lang->flags};
1825	0	0			0	push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1826	0				0	foreach my $flag (@peflags)
1827						{
1828	0	0			0	if (set_seen ("${derived}_$flag"))
1829						{
1830	0				0	$have_per_exec_flags = 1;
1831	0				0	last;
1832						}
1833						}
1834
1835						# Note: computed subr call. The language rewrite function
1836						# should return one of the LANG_* constants. It could
1837						# also return a list whose first value is such a constant
1838						# and whose second value is a new source extension which
1839						# should be applied. This means this particular language
1840						# generates another source file which we must then process
1841						# further.
1842	0 0				0 0	my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1843	0				0	my ($r, $source_extension)
1844						= &$subr ($directory, $base, $extension,
1845						$nonansi_obj, $have_per_exec_flags, $var);
1846						# Skip this entry if we were asked not to process it.
1847	0	0			0	next if $r == LANG_IGNORE;
1848
1849						# Now extract linker and other info.
1850	0				0	$linker = $lang->linker;
1851
1852	0				0	my $this_obj_ext;
1853	0	0 0			0	if (defined $source_extension)
1854						{
1855	0				0	$this_obj_ext = $source_extension;
1856	0				0	$derived_source = 1;
1857						}
1858						elsif ($lang->ansi)
1859						{
1860	0				0	$this_obj_ext = $obj;
1861						}
1862						else
1863						{
1864	0				0	$this_obj_ext = $nonansi_obj;
1865						}
1866	0				0	$object = $base . $this_obj_ext;
1867
1868	0	0			0	if ($have_per_exec_flags)
1869						{
1870						# We have a per-executable flag in effect for this
1871						# object. In this case we rewrite the object's
1872						# name to ensure it is unique.
1873
1874						# We choose the name `DERIVED_OBJECT' to ensure
1875						# (1) uniqueness, and (2) continuity between
1876						# invocations. However, this will result in a
1877						# name that is too long for losing systems, in
1878						# some situations. So we provide _SHORTNAME to
1879						# override.
1880
1881	0				0	my $dname = $derived;
1882	0				0	my $var = var ($derived . '_SHORTNAME');
1883	0	0			0	if ($var)
1884						{
1885						# FIXME: should use the same Condition as
1886						# the _SOURCES variable. But this is really
1887						# silly overkill -- nobody should have
1888						# conditional shortnames.
1889	0				0	$dname = $var->variable_value;
1890						}
1891	0				0	$object = $dname . '-' . $object;
1892
1893	0	0			0	prog_error ($lang->name . " flags defined without compiler")
1894						if ! defined $lang->compile;
1895
1896	0				0	$renamed = 1;
1897						}
1898
1899						# If rewrite said it was ok, put the object into a
1900						# subdir.
1901	0	0	0		0	if ($r == LANG_SUBDIR && $directory ne '')
1902						{
1903	0				0	$object = $directory . '/' . $object;
1904						}
1905
1906						# If the object file has been renamed (because per-target
1907						# flags are used) we cannot compile the file with an
1908						# inference rule: we need an explicit rule.
1909						#
1910						# If the source is in a subdirectory and the object is in
1911						# the current directory, we also need an explicit rule.
1912						#
1913						# If both source and object files are in a subdirectory
1914						# (this happens when the subdir-objects option is used),
1915						# then the inference will work.
1916						#
1917						# The latter case deserves a historical note. When the
1918						# subdir-objects option was added on 1999-04-11 it was
1919						# thought that inferences rules would work for
1920						# subdirectory objects too. Later, on 1999-11-22,
1921						# automake was changed to output explicit rules even for
1922						# subdir-objects. Nobody remembers why, but this occurred
1923						# soon after the merge of the user-dep-gen-branch so it
1924						# might be related. In late 2003 people complained about
1925						# the size of the generated Makefile.ins (libgcj, with
1926						# 2200+ subdir objects was reported to have a 9MB
1927						# Makefile), so we now rely on inference rules again.
1928						# Maybe we'll run across the same issue as in the past,
1929						# but at least this time we can document it. However since
1930						# dependency tracking has evolved it is possible that
1931						# our old problem no longer exists.
1932						# Using inference rules for subdir-objects has been tested
1933						# with GNU make, Solaris make, Ultrix make, BSD make,
1934						# HP-UX make, and OSF1 make successfully.
1935	0	0	0		0	if ($renamed
1936						\|\| ($directory ne '' && ! option 'subdir-objects')
1937						# We must also use specific rules for a nodist_ source
1938						# if its language requests it.
1939						\|\| ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1940						{
1941	0				0	my $obj_sans_ext = substr ($object, 0,
1942						- length ($this_obj_ext));
1943	0				0	my $full_ansi;
1944	0	0			0	if ($directory ne '')
1945						{
1946	0				0	$full_ansi = $directory . '/' . $base . $extension;
1947						}
1948						else
1949						{
1950	0				0	$full_ansi = $base . $extension;
1951						}
1952
1953	0	0	0		0	if ($lang->ansi && option 'ansi2knr')
1954						{
1955	0				0	$full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1956	0				0	$obj_sans_ext .= '$U';
1957						}
1958
1959	0	0			0	my @specifics = ($full_ansi, $obj_sans_ext,
1960						# Only use $this_obj_ext in the derived
1961						# source case because in the other case we
1962						# don't want $(OBJEXT) to appear here.
1963						($derived_source ? $this_obj_ext : '.o'),
1964						$extension);
1965
1966						# If we renamed the object then we want to use the
1967						# per-executable flag name. But if this is simply a
1968						# subdir build then we still want to use the AM_ flag
1969						# name.
1970	0	0			0	if ($renamed)
1971						{
1972	0				0	unshift @specifics, $derived;
1973	0				0	$aggregate = $derived;
1974						}
1975						else
1976						{
1977	0				0	unshift @specifics, 'AM';
1978						}
1979
1980						# Each item on this list is a reference to a list consisting
1981						# of four values followed by additional transform flags for
1982						# file_contents. The four values are the derived flag prefix
1983						# (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1984						# source file, the base name of the output file, and
1985						# the extension for the object file.
1986	0 0				0 0	push (@{$lang_specific_files{$lang->name}},
1987						[@specifics, %transform]);
1988						}
1989						}
1990						elsif ($extension eq $nonansi_obj)
1991						{
1992						# This is probably the result of a direct suffix rule.
1993						# In this case we just accept the rewrite.
1994	0				0	$object = "$base$extension";
1995	0	0			0	$object = "$directory/$object" if $directory ne '';
1996	0				0	$linker = '';
1997						}
1998						else
1999						{
2000						# No error message here. Used to have one, but it was
2001						# very unpopular.
2002						# FIXME: we could potentially do more processing here,
2003						# perhaps treating the new extension as though it were a
2004						# new source extension (as above). This would require
2005						# more restructuring than is appropriate right now.
2006	0				0	next;
2007						}
2008
2009	0	0	0		0	err_am "object `$object' created by `$full' and `$object_map{$object}'"
2010						if (defined $object_map{$object}
2011						&& $object_map{$object} ne $full);
2012
2013	0	0			0	my $comp_val = (($object =~ /\.lo$/)
2014						? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2015	0				0	(my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2016	0	0	0		0	if (defined $object_compilation_map{$comp_obj}
2017						&& $object_compilation_map{$comp_obj} != 0
2018						# Only see the error once.
2019						&& ($object_compilation_map{$comp_obj}
2020						!= (COMPILE_LIBTOOL \| COMPILE_ORDINARY))
2021						&& $object_compilation_map{$comp_obj} != $comp_val)
2022						{
2023	0				0	err_am "object `$comp_obj' created both with libtool and without";
2024						}
2025	0				0	$object_compilation_map{$comp_obj} \|= $comp_val;
2026
2027	0	0			0	if (defined $lang)
2028						{
2029						# Let the language do some special magic if required.
2030	0				0	$lang->target_hook ($aggregate, $object, $full, %transform);
2031						}
2032
2033	0	0			0	if ($derived_source)
2034						{
2035	0	0			0	prog_error ($lang->name . " has automatic dependency tracking")
2036						if $lang->autodep ne 'no';
2037						# Make sure this new source file is handled next. That will
2038						# make it appear to be at the right place in the list.
2039	0				0	unshift (@files, $object);
2040						# Distribute derived sources unless the source they are
2041						# derived from is not.
2042	0	0			0	&push_dist_common ($object)
2043						unless ($topparent =~ /^(?:nobase_)?nodist_/);
2044	0				0	next;
2045						}
2046
2047	0				0	$linkers_used{$linker} = 1;
2048
2049	0				0	push (@result, $object);
2050
2051	0	0			0	if (! defined $object_map{$object})
2052						{
2053	0				0	my @dep_list = ();
2054	0				0	$object_map{$object} = $full;
2055
2056						# If resulting object is in subdir, we need to make
2057						# sure the subdir exists at build time.
2058	0	0			0	if ($object =~ /\//)
2059						{
2060						# FIXME: check that $DIRECTORY is somewhere in the
2061						# project
2062
2063						# For Java, the way we're handling it right now, a
2064						# `..' component doesn't make sense.
2065	0	0	0		0	if ($lang && $lang->name eq 'java' && $object =~ /(\/\|^)\.\.\//)
2066						{
2067	0				0	err_am "`$full' should not contain a `..' component";
2068						}
2069
2070						# Make sure object is removed by `make mostlyclean'.
2071	0				0	$compile_clean_files{$object} = MOSTLY_CLEAN;
2072						# If we have a libtool object then we also must remove
2073						# the ordinary .o.
2074	0	0			0	if ($object =~ /\.lo$/)
2075						{
2076	0				0	(my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2077	0				0	$compile_clean_files{$xobj} = MOSTLY_CLEAN;
2078
2079						# Remove any libtool object in this directory.
2080	0				0	$libtool_clean_directories{$directory} = 1;
2081						}
2082
2083	0				0	push (@dep_list, require_build_directory ($directory));
2084
2085						# If we're generating dependencies, we also want
2086						# to make sure that the appropriate subdir of the
2087						# .deps directory is created.
2088	0	0			0	push (@dep_list,
2089						require_build_directory ($directory . '/$(DEPDIR)'))
2090						unless option 'no-dependencies';
2091						}
2092
2093	0	0			0	&pretty_print_rule ($object . ':', "\t", @dep_list)
2094						if scalar @dep_list > 0;
2095						}
2096
2097						# Transform .o or $o file into .P file (for automatic
2098						# dependency code).
2099	0	0	0		0	if ($lang && $lang->autodep ne 'no')
2100						{
2101	0				0	my $depfile = $object;
2102	0				0	$depfile =~ s/\.([^.]*)$/.P$1/;
2103	0				0	$depfile =~ s/\$$OBJEXT$$/o/;
2104	0				0	$dep_files{dirname ($depfile) . '/$(DEPDIR)/'
2105						. basename ($depfile)} = 1;
2106						}
2107						}
2108
2109	0				0	return @result;
2110						}
2111
2112
2113						# $LINKER
2114						# define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2115						# $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2116						# ---------------------------------------------------------------------------
2117						# Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2118						#
2119						# Arguments are:
2120						# $VAR is the name of the _SOURCES variable
2121						# $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2122						# it will be generated and returned).
2123						# $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2124						# work done to determine the linker will be).
2125						# $ONE_FILE is the canonical (transformed) name of object to build
2126						# $OBJ is the object extension (i.e. either `.o' or `.lo').
2127						# $TOPPARENT is the _SOURCES variable being processed.
2128						# $WHERE context into which this definition is done
2129						# %TRANSFORM extra arguments to pass to file_contents when producing
2130						# rules
2131						#
2132						# Result is a pair ($LINKER, $OBJVAR):
2133						# $LINKER is a boolean, true if a linker is needed to deal with the objects
2134						sub define_objects_from_sources ($$$$$$$%)
2135						{
2136	0			0	0	my ($var, $objvar, $nodefine, $one_file,
2137						$obj, $topparent, $where, %transform) = @_;
2138
2139	0				0	my $needlinker = "";
2140
2141						transform_variable_recursively
2142						($var, $objvar, 'am__objects', $nodefine, $where,
2143						# The transform code to run on each filename.
2144						sub {
2145	0			0	0	my ($subvar, $val, $cond, $full_cond) = @_;
2146	0				0	my @trans = handle_single_transform ($subvar, $topparent,
2147						$one_file, $obj, $val,
2148						%transform);
2149	0	0			0	$needlinker = "true" if @trans;
2150	0				0	return @trans;
2151	0				0	});
2152
2153	0				0	return $needlinker;
2154						}
2155
2156
2157						# handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2158						# -----------------------------------------------------------------------------
2159						# Handle SOURCE->OBJECT transform for one program or library.
2160						# Arguments are:
2161						# canonical (transformed) name of target to build
2162						# actual target of object to build
2163						# object extension (i.e., either `.o' or `$o')
2164						# location of the source variable
2165						# extra arguments to pass to file_contents when producing rules
2166						# Return the name of the linker variable that must be used.
2167						# Empty return means just use `LINK'.
2168						sub handle_source_transform ($$$$%)
2169						{
2170						# one_file is canonical name. unxformed is given name. obj is
2171						# object extension.
2172	0			0	0	my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2173
2174	0				0	my $linker = '';
2175
2176						# No point in continuing if _OBJECTS is defined.
2177	0	0			0	return if reject_var ($one_file . '_OBJECTS',
2178						$one_file . '_OBJECTS should not be defined');
2179
2180	0				0	my %used_pfx = ();
2181	0				0	my $needlinker;
2182	0				0	%linkers_used = ();
2183	0				0	foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2184						'dist_EXTRA_', 'nodist_EXTRA_')
2185						{
2186	0				0	my $varname = $prefix . $one_file . "_SOURCES";
2187	0				0	my $var = var $varname;
2188	0	0			0	next unless $var;
2189
2190						# We are going to define _OBJECTS variables using the prefix.
2191						# Then we glom them all together. So we can't use the null
2192						# prefix here as we need it later.
2193	0	0			0	my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2194
2195						# Keep track of which prefixes we saw.
2196	0	0			0	$used_pfx{$xpfx} = 1
2197						unless $prefix =~ /EXTRA_/;
2198
2199	0				0	push @sources, "\$($varname)";
2200	0	0	0		0	push @dist_sources, shadow_unconditionally ($varname, $where)
2201						unless (option ('no-dist') \|\| $prefix =~ /^nodist_/);
2202
2203	0				0	$needlinker \|=
2204						define_objects_from_sources ($varname,
2205						$xpfx . $one_file . '_OBJECTS',
2206						$prefix =~ /EXTRA_/,
2207						$one_file, $obj, $varname, $where,
2208						DIST_SOURCE => ($prefix !~ /^nodist_/),
2209						%transform);
2210						}
2211	0	0			0	if ($needlinker)
2212						{
2213	0		0		0	$linker \|\|= &resolve_linker (%linkers_used);
2214						}
2215
2216	0				0	my @keys = sort keys %used_pfx;
2217	0	0			0	if (scalar @keys == 0)
2218						{
2219						# The default source for libfoo.la is libfoo.c, but for
2220						# backward compatibility we first look at libfoo_la.c,
2221						# if no default source suffix is given.
2222	0				0	my $old_default_source = "$one_file.c";
2223	0				0	my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2224	0	0			0	my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2225	0	0			0	msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2226						if $default_source_ext =~ /[\t ]/;
2227	0				0	(my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2228	0	0	0 0		0	if ($old_default_source ne $default_source
2229						&& !$ext_var
2230						&& (rule $old_default_source
2231						\|\| rule '$(srcdir)/' . $old_default_source
2232						\|\| rule '${srcdir}/' . $old_default_source
2233						\|\| -f $old_default_source))
2234						{
2235	0				0	my $loc = $where->clone;
2236	0				0	$loc->pop_context;
2237	0				0	msg ('obsolete', $loc,
2238						"the default source for `$unxformed' has been changed "
2239						. "to `$default_source'.\n(Using `$old_default_source' for "
2240						. "backward compatibility.)");
2241	0				0	$default_source = $old_default_source;
2242						}
2243						# If a rule exists to build this source with a $(srcdir)
2244						# prefix, use that prefix in our variables too. This is for
2245						# the sake of BSD Make.
2246	0	0	0		0	if (rule '$(srcdir)/' . $default_source
2247						\|\| rule '${srcdir}/' . $default_source)
2248						{
2249	0				0	$default_source = '$(srcdir)/' . $default_source;
2250						}
2251
2252	0				0	&define_variable ($one_file . "_SOURCES", $default_source, $where);
2253	0				0	push (@sources, $default_source);
2254	0				0	push (@dist_sources, $default_source);
2255
2256	0				0	%linkers_used = ();
2257	0				0	my (@result) =
2258						handle_single_transform ($one_file . '_SOURCES',
2259						$one_file . '_SOURCES',
2260						$one_file, $obj,
2261						$default_source, %transform);
2262	0		0		0	$linker \|\|= &resolve_linker (%linkers_used);
2263	0				0	define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2264						}
2265						else
2266						{
2267	0 0				0 0	@keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2268	0				0	define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2269						}
2270
2271						# If we want to use `LINK' we must make sure it is defined.
2272	0	0			0	if ($linker eq '')
2273						{
2274	0				0	$need_link = 1;
2275						}
2276
2277	0				0	return $linker;
2278						}
2279
2280
2281						# handle_lib_objects ($XNAME, $VAR)
2282						# ---------------------------------
2283						# Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2284						# Also, generate _DEPENDENCIES variable if appropriate.
2285						# Arguments are:
2286						# transformed name of object being built, or empty string if no object
2287						# name of _LDADD/_LIBADD-type variable to examine
2288						# Returns 1 if LIBOBJS seen, 0 otherwise.
2289						sub handle_lib_objects
2290						{
2291	0			0	0	my ($xname, $varname) = @_;
2292
2293	0				0	my $var = var ($varname);
2294	0	0			0	prog_error "handle_lib_objects: `$varname' undefined"
2295						unless $var;
2296	0	0			0	prog_error "handle_lib_objects: unexpected variable name `$varname'"
2297						unless $varname =~ /^(.*)(?:LIB\|LD)ADD$/;
2298	0		0		0	my $prefix = $1 \|\| 'AM_';
2299
2300	0				0	my $seen_libobjs = 0;
2301	0				0	my $flagvar = 0;
2302
2303						transform_variable_recursively
2304						($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2305						! $xname, INTERNAL,
2306						# Transformation function, run on each filename.
2307						sub {
2308	0			0	0	my ($subvar, $val, $cond, $full_cond) = @_;
2309
2310	0	0 0 0 0			0	if ($val =~ /^-/)
2311						{
2312						# Skip -lfoo and -Ldir silently; these are explicitly allowed.
2313	0	0	0		0	if ($val !~ /^-[lL]/ &&
2314						# Skip -dlopen and -dlpreopen; these are explicitly allowed
2315						# for Libtool libraries or programs. (Actually we are a bit
2316						# laxe here since this code also applies to non-libtool
2317						# libraries or programs, for which -dlopen and -dlopreopen
2318						# are pure nonsense. Diagnosing this doesn't seem very
2319						# important: the developer will quickly get complaints from
2320						# the linker.)
2321						$val !~ /^-dl(?:pre)?open$/ &&
2322						# Only get this error once.
2323						! $flagvar)
2324						{
2325	0				0	$flagvar = 1;
2326						# FIXME: should display a stack of nested variables
2327						# as context when $var != $subvar.
2328	0				0	err_var ($var, "linker flags such as `$val' belong in "
2329						. "`${prefix}LDFLAGS");
2330						}
2331	0				0	return ();
2332						}
2333						elsif ($val !~ /^\@.*\@$/)
2334						{
2335						# Assume we have a file of some sort, and output it into the
2336						# dependency variable. Autoconf substitutions are not output;
2337						# rarely is a new dependency substituted into e.g. foo_LDADD
2338						# -- but bad things (e.g. -lX11) are routinely substituted.
2339						# Note that LIBOBJS and ALLOCA are exceptions to this rule,
2340						# and handled specially below.
2341	0				0	return $val;
2342						}
2343						elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2344						{
2345	0				0	handle_LIBOBJS ($subvar, $cond, $1);
2346	0				0	$seen_libobjs = 1;
2347	0				0	return $val;
2348						}
2349						elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2350						{
2351	0				0	handle_ALLOCA ($subvar, $cond, $1);
2352	0				0	return $val;
2353						}
2354						else
2355						{
2356	0				0	return ();
2357						}
2358	0				0	});
2359
2360	0				0	return $seen_libobjs;
2361						}
2362
2363						# handle_LIBOBJS_or_ALLOCA ($VAR)
2364						# -------------------------------
2365						# Definitions common to LIBOBJS and ALLOCA.
2366						# VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2367						sub handle_LIBOBJS_or_ALLOCA ($)
2368						{
2369	0			0	0	my ($var) = @_;
2370
2371	0				0	my $dir = '';
2372
2373						# If LIBOBJS files must be built in another directory we have
2374						# to define LIBOBJDIR and ensure the files get cleaned.
2375						# Otherwise LIBOBJDIR can be left undefined, and the cleaning
2376						# is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2377	0	0	0		0	if ($config_libobj_dir
2378						&& $relative_dir ne $config_libobj_dir)
2379						{
2380	0	0			0	if (option 'subdir-objects')
2381						{
2382						# In the top-level Makefile we do not use $(top_builddir), because
2383						# we are already there, and since the targets are built without
2384						# a $(top_builddir), it helps BSD Make to match them with
2385						# dependencies.
2386	0	0			0	$dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2387	0	0			0	$dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2388	0				0	define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2389	0				0	$clean_files{"\$($var)"} = MOSTLY_CLEAN;
2390						# If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2391						# be created by libtool as a side-effect of creating LTLIBOBJS).
2392	0	0			0	$clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2393						}
2394						else
2395						{
2396	0				0	error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2397						. " `subdir-objects' is not set");
2398						}
2399						}
2400
2401	0				0	return $dir;
2402						}
2403
2404						sub handle_LIBOBJS ($$$)
2405						{
2406	0			0	0	my ($var, $cond, $lt) = @_;
2407	0	0			0	my $myobjext = $lt ? 'lo' : 'o';
2408	0		0		0	$lt \|\|= '';
2409
2410	0	0			0	$var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2411						if ! keys %libsources;
2412
2413	0				0	my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2414
2415	0				0	foreach my $iter (keys %libsources)
2416						{
2417	0	0			0	if ($iter =~ /\.[cly]$/)
2418						{
2419	0				0	&saw_extension ($&);
2420	0				0	&saw_extension ('.c');
2421						}
2422
2423	0	0 0			0	if ($iter =~ /\.h$/)
2424						{
2425	0				0	require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2426						}
2427						elsif ($iter ne 'alloca.c')
2428						{
2429	0				0	my $rewrite = $iter;
2430	0				0	$rewrite =~ s/\.c$/.P$myobjext/;
2431	0				0	$dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2432	0				0	$rewrite = "^" . quotemeta ($iter) . "\$";
2433						# Only require the file if it is not a built source.
2434	0				0	my $bs = var ('BUILT_SOURCES');
2435	0	0	0		0	if (! $bs \|\| ! grep (/$rewrite/, $bs->value_as_list_recursive))
2436						{
2437	0				0	require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2438						}
2439						}
2440						}
2441						}
2442
2443						sub handle_ALLOCA ($$$)
2444						{
2445	0			0	0	my ($var, $cond, $lt) = @_;
2446	0	0			0	my $myobjext = $lt ? 'lo' : 'o';
2447	0		0		0	$lt \|\|= '';
2448	0				0	my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2449
2450	0				0	$var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2451	0				0	$dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2452	0				0	require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2453	0				0	&saw_extension ('.c');
2454						}
2455
2456						# Canonicalize the input parameter
2457						sub canonicalize
2458						{
2459	0			0	0	my ($string) = @_;
2460	0				0	$string =~ tr/A-Za-z0-9_\@/_/c;
2461	0				0	return $string;
2462						}
2463
2464						# Canonicalize a name, and check to make sure the non-canonical name
2465						# is never used. Returns canonical name. Arguments are name and a
2466						# list of suffixes to check for.
2467						sub check_canonical_spelling
2468						{
2469	0			0	0	my ($name, @suffixes) = @_;
2470
2471	0				0	my $xname = &canonicalize ($name);
2472	0	0			0	if ($xname ne $name)
2473						{
2474	0				0	foreach my $xt (@suffixes)
2475						{
2476	0				0	reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2477						}
2478						}
2479
2480	0				0	return $xname;
2481						}
2482
2483
2484						# handle_compile ()
2485						# -----------------
2486						# Set up the compile suite.
2487						sub handle_compile ()
2488						{
2489						return
2490	0	0		0	0	unless $get_object_extension_was_run;
2491
2492						# Boilerplate.
2493	0				0	my $default_includes = '';
2494	0	0			0	if (! option 'nostdinc')
2495						{
2496	0				0	my @incs = ('-I.', subst ('am__isrc'));
2497
2498	0				0	my $var = var 'CONFIG_HEADER';
2499	0	0			0	if ($var)
2500						{
2501	0				0	foreach my $hdr (split (' ', $var->variable_value))
2502						{
2503	0				0	push @incs, '-I' . dirname ($hdr);
2504						}
2505						}
2506						# We want `-I. -I$(srcdir)', but the latter -I is redundant
2507						# and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2508						# instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2509						# Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2510						# to just put @am__isrc@ right after `-I.', without a space.
2511	0				0	($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2512						}
2513
2514	0				0	my (@mostly_rms, @dist_rms);
2515	0				0	foreach my $item (sort keys %compile_clean_files)
2516						{
2517	0	0 0			0	if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2518						{
2519	0				0	push (@mostly_rms, "\t-rm -f $item");
2520						}
2521						elsif ($compile_clean_files{$item} == DIST_CLEAN)
2522						{
2523	0				0	push (@dist_rms, "\t-rm -f $item");
2524						}
2525						else
2526						{
2527	0				0	prog_error 'invalid entry in %compile_clean_files';
2528						}
2529						}
2530
2531	0				0	my ($coms, $vars, $rules) =
2532						&file_contents_internal (1, "$libdir/am/compile.am",
2533						new Automake::Location,
2534						('DEFAULT_INCLUDES' => $default_includes,
2535						'MOSTLYRMS' => join ("\n", @mostly_rms),
2536						'DISTRMS' => join ("\n", @dist_rms)));
2537	0				0	$output_vars .= $vars;
2538	0				0	$output_rules .= "$coms$rules";
2539
2540						# Check for automatic de-ANSI-fication.
2541	0	0			0	if (option 'ansi2knr')
2542						{
2543	0 0				0 0	my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2544	0				0	my $ansi2knr_dir = '';
2545
2546	0				0	require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2547						TRUE, "ANSI2KNR", "U");
2548
2549						# topdir is where ansi2knr should be.
2550	0	0			0	if ($ansi2knr_filename eq 'ansi2knr')
2551						{
2552						# Only require ansi2knr files if they should appear in
2553						# this directory.
2554	0				0	require_file ($ansi2knr_where, FOREIGN,
2555						'ansi2knr.c', 'ansi2knr.1');
2556
2557						# ansi2knr needs to be built before subdirs, so unshift it.
2558	0				0	unshift (@all, '$(ANSI2KNR)');
2559						}
2560						else
2561						{
2562	0				0	$ansi2knr_dir = dirname ($ansi2knr_filename);
2563						}
2564
2565	0				0	$output_rules .= &file_contents ('ansi2knr',
2566						new Automake::Location,
2567						'ANSI2KNR-DIR' => $ansi2knr_dir);
2568
2569						}
2570						}
2571
2572						# handle_libtool ()
2573						# -----------------
2574						# Handle libtool rules.
2575						sub handle_libtool
2576						{
2577	0	0		0	0	return unless var ('LIBTOOL');
2578
2579						# Libtool requires some files, but only at top level.
2580						# (Starting with Libtool 2.0 we do not have to bother. These
2581						# requirements are done with AC_REQUIRE_AUX_FILE.)
2582	0	0	0		0	require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2583						if $relative_dir eq '.' && ! $libtool_new_api;
2584
2585	0				0	my @libtool_rms;
2586	0				0	foreach my $item (sort keys %libtool_clean_directories)
2587						{
2588	0	0			0	my $dir = ($item eq '.') ? '' : "$item/";
2589						# .libs is for Unix, _libs for DOS.
2590	0				0	push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2591						}
2592
2593	0				0	check_user_variables 'LIBTOOLFLAGS';
2594
2595						# Output the libtool compilation rules.
2596	0				0	$output_rules .= &file_contents ('libtool',
2597						new Automake::Location,
2598						LTRMS => join ("\n", @libtool_rms));
2599						}
2600
2601						# handle_programs ()
2602						# ------------------
2603						# Handle C programs.
2604						sub handle_programs
2605						{
2606	0			0	0	my @proglist = &am_install_var ('progs', 'PROGRAMS',
2607						'bin', 'sbin', 'libexec', 'pkglib',
2608						'noinst', 'check');
2609	0	0			0	return if ! @proglist;
2610
2611	0		0		0	my $seen_global_libobjs =
2612						var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2613
2614	0				0	foreach my $pair (@proglist)
2615						{
2616	0				0	my ($where, $one_file) = @$pair;
2617
2618	0				0	my $seen_libobjs = 0;
2619	0				0	my $obj = get_object_extension '.$(OBJEXT)';
2620
2621	0				0	$known_programs{$one_file} = $where;
2622
2623						# Canonicalize names and check for misspellings.
2624	0				0	my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2625						'_SOURCES', '_OBJECTS',
2626						'_DEPENDENCIES');
2627
2628	0				0	$where->push_context ("while processing program `$one_file'");
2629	0				0	$where->set (INTERNAL->get);
2630
2631	0				0	my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2632						NONLIBTOOL => 1, LIBTOOL => 0);
2633
2634	0	0			0	if (var ($xname . "_LDADD"))
2635						{
2636	0				0	$seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2637						}
2638						else
2639						{
2640						# User didn't define prog_LDADD override. So do it.
2641	0				0	&define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2642
2643						# This does a bit too much work. But we need it to
2644						# generate _DEPENDENCIES when appropriate.
2645	0	0			0	if (var ('LDADD'))
2646						{
2647	0				0	$seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2648						}
2649						}
2650
2651	0				0	reject_var ($xname . '_LIBADD',
2652						"use `${xname}_LDADD', not `${xname}_LIBADD'");
2653
2654	0				0	set_seen ($xname . '_DEPENDENCIES');
2655	0				0	set_seen ($xname . '_LDFLAGS');
2656
2657						# Determine program to use for link.
2658	0				0	my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2659	0		0		0	$vlink = verbose_flag ($vlink \|\| 'GEN');
2660
2661						# If the resulting program lies into a subdirectory,
2662						# make sure this directory will exist.
2663	0				0	my $dirstamp = require_build_directory_maybe ($one_file);
2664
2665	0				0	$libtool_clean_directories{dirname ($one_file)} = 1;
2666
2667	0				0	$output_rules .= &file_contents ('program',
2668						$where,
2669						PROGRAM => $one_file,
2670						XPROGRAM => $xname,
2671						XLINK => $xlink,
2672						VERBOSE => $vlink,
2673						DIRSTAMP => $dirstamp,
2674						EXEEXT => '$(EXEEXT)');
2675
2676	0	0	0		0	if ($seen_libobjs \|\| $seen_global_libobjs)
2677						{
2678	0	0 0			0	if (var ($xname . '_LDADD'))
2679						{
2680	0				0	&check_libobjs_sources ($xname, $xname . '_LDADD');
2681						}
2682						elsif (var ('LDADD'))
2683						{
2684	0				0	&check_libobjs_sources ($xname, 'LDADD');
2685						}
2686						}
2687						}
2688						}
2689
2690
2691						# handle_libraries ()
2692						# -------------------
2693						# Handle libraries.
2694						sub handle_libraries
2695						{
2696	0			0	0	my @liblist = &am_install_var ('libs', 'LIBRARIES',
2697						'lib', 'pkglib', 'noinst', 'check');
2698	0	0			0	return if ! @liblist;
2699
2700	0				0	my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2701						'noinst', 'check');
2702
2703	0	0			0	if (@prefix)
2704						{
2705	0				0	my $var = rvar ($prefix[0] . '_LIBRARIES');
2706	0				0	$var->requires_variables ('library used', 'RANLIB');
2707						}
2708
2709	0				0	&define_variable ('AR', 'ar', INTERNAL);
2710	0				0	&define_variable ('ARFLAGS', 'cru', INTERNAL);
2711	0				0	&define_verbose_tagvar ('AR');
2712
2713	0				0	foreach my $pair (@liblist)
2714						{
2715	0				0	my ($where, $onelib) = @$pair;
2716
2717	0				0	my $seen_libobjs = 0;
2718						# Check that the library fits the standard naming convention.
2719	0				0	my $bn = basename ($onelib);
2720	0	0			0	if ($bn !~ /^lib.*\.a$/)
2721						{
2722	0				0	$bn =~ s/^(?:lib)?(.?)(?:\.[^.])?$/lib$1.a/;
2723	0				0	my $suggestion = dirname ($onelib) . "/$bn";
2724	0				0	$suggestion =~ s\|^\./\|\|g;
2725	0				0	msg ('error-gnu/warn', $where,
2726						"`$onelib' is not a standard library name\n"
2727						. "did you mean `$suggestion'?")
2728						}
2729
2730	0				0	($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2731
2732	0				0	$where->push_context ("while processing library `$onelib'");
2733	0				0	$where->set (INTERNAL->get);
2734
2735	0				0	my $obj = get_object_extension '.$(OBJEXT)';
2736
2737						# Canonicalize names and check for misspellings.
2738	0				0	my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2739						'_OBJECTS', '_DEPENDENCIES',
2740						'_AR');
2741
2742	0	0			0	if (! var ($xlib . '_AR'))
2743						{
2744	0				0	&define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2745						}
2746
2747						# Generate support for conditional object inclusion in
2748						# libraries.
2749	0	0			0	if (var ($xlib . '_LIBADD'))
2750						{
2751	0	0			0	if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2752						{
2753	0				0	$seen_libobjs = 1;
2754						}
2755						}
2756						else
2757						{
2758	0				0	&define_variable ($xlib . "_LIBADD", '', $where);
2759						}
2760
2761	0				0	reject_var ($xlib . '_LDADD',
2762						"use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2763
2764						# Make sure we at look at this.
2765	0				0	set_seen ($xlib . '_DEPENDENCIES');
2766
2767	0				0	&handle_source_transform ($xlib, $onelib, $obj, $where,
2768						NONLIBTOOL => 1, LIBTOOL => 0);
2769
2770						# If the resulting library lies into a subdirectory,
2771						# make sure this directory will exist.
2772	0				0	my $dirstamp = require_build_directory_maybe ($onelib);
2773	0				0	my $verbose = verbose_flag ('AR');
2774	0				0	my $silent = silent_flag ();
2775
2776	0				0	$output_rules .= &file_contents ('library',
2777						$where,
2778						VERBOSE => $verbose,
2779						SILENT => $silent,
2780						LIBRARY => $onelib,
2781						XLIBRARY => $xlib,
2782						DIRSTAMP => $dirstamp);
2783
2784	0	0			0	if ($seen_libobjs)
2785						{
2786	0	0			0	if (var ($xlib . '_LIBADD'))
2787						{
2788	0				0	&check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2789						}
2790						}
2791						}
2792						}
2793
2794
2795						# handle_ltlibraries ()
2796						# ---------------------
2797						# Handle shared libraries.
2798						sub handle_ltlibraries
2799						{
2800	0			0	0	my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2801						'noinst', 'lib', 'pkglib', 'check');
2802	0	0			0	return if ! @liblist;
2803
2804	0				0	my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2805						'noinst', 'check');
2806
2807	0	0			0	if (@prefix)
2808						{
2809	0				0	my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2810	0				0	$var->requires_variables ('Libtool library used', 'LIBTOOL');
2811						}
2812
2813	0				0	my %instdirs = ();
2814	0				0	my %instsubdirs = ();
2815	0				0	my %instconds = ();
2816	0				0	my %liblocations = (); # Location (in Makefile.am) of each library.
2817
2818	0				0	foreach my $key (@prefix)
2819						{
2820						# Get the installation directory of each library.
2821	0				0	my $dir = $key;
2822	0				0	my $strip_subdir = 1;
2823	0	0			0	if ($dir =~ /^nobase_/)
2824						{
2825	0				0	$dir =~ s/^nobase_//;
2826	0				0	$strip_subdir = 0;
2827						}
2828	0				0	my $var = rvar ($key . '_LTLIBRARIES');
2829
2830						# We reject libraries which are installed in several places
2831						# in the same condition, because we can only specify one
2832						# `-rpath' option.
2833						$var->traverse_recursively
2834						(sub
2835						{
2836	0			0	0	my ($var, $val, $cond, $full_cond) = @_;
2837	0				0	my $hcond = $full_cond->human;
2838	0				0	my $where = $var->rdef ($cond)->location;
2839	0				0	my $ldir = '';
2840	0	0			0	$ldir = '/' . dirname ($val)
2841						if (!$strip_subdir);
2842						# A library cannot be installed in different directories
2843						# in overlapping conditions.
2844	0	0			0	if (exists $instconds{$val})
2845						{
2846	0				0	my ($msg, $acond) =
2847						$instconds{$val}->ambiguous_p ($val, $full_cond);
2848
2849	0	0			0	if ($msg)
2850						{
2851	0				0	error ($where, $msg, partial => 1);
2852	0	0			0	my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2853	0	0	0		0	$dirtxt = "built for `$dir'"
2854						if $dir eq 'EXTRA' \|\| $dir eq 'noinst' \|\| $dir eq 'check';
2855	0	0			0	my $dircond =
2856						$full_cond->true ? "" : " in condition $hcond";
2857
2858	0				0	error ($where, "`$val' should be $dirtxt$dircond ...",
2859						partial => 1);
2860
2861	0				0	my $hacond = $acond->human;
2862	0				0	my $adir = $instdirs{$val}{$acond};
2863	0				0	my $adirtxt = "installed in `$adir'";
2864	0	0	0		0	$adirtxt = "built for `$adir'"
2865						if ($adir eq 'EXTRA' \|\| $adir eq 'noinst'
2866						\|\| $adir eq 'check');
2867	0	0			0	my $adircond = $acond->true ? "" : " in condition $hacond";
2868
2869	0	0			0	my $onlyone = ($dir ne $adir) ?
2870						("\nLibtool libraries can be built for only one "
2871						. "destination.") : "";
2872
2873	0				0	error ($liblocations{$val}{$acond},
2874						"... and should also be $adirtxt$adircond.$onlyone");
2875	0				0	return;
2876						}
2877						}
2878						else
2879						{
2880	0				0	$instconds{$val} = new Automake::DisjConditions;
2881						}
2882	0				0	$instdirs{$val}{$full_cond} = $dir;
2883	0				0	$instsubdirs{$val}{$full_cond} = $ldir;
2884	0				0	$liblocations{$val}{$full_cond} = $where;
2885	0				0	$instconds{$val} = $instconds{$val}->merge ($full_cond);
2886						},
2887						sub
2888						{
2889	0			0	0	return ();
2890						},
2891	0				0	skip_ac_subst => 1);
2892						}
2893
2894	0				0	foreach my $pair (@liblist)
2895						{
2896	0				0	my ($where, $onelib) = @$pair;
2897
2898	0				0	my $seen_libobjs = 0;
2899	0				0	my $obj = get_object_extension '.lo';
2900
2901						# Canonicalize names and check for misspellings.
2902	0				0	my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2903						'_SOURCES', '_OBJECTS',
2904						'_DEPENDENCIES');
2905
2906						# Check that the library fits the standard naming convention.
2907	0				0	my $libname_rx = '^lib.*\.la';
2908	0		0		0	my $ldvar = var ("${xlib}_LDFLAGS") \|\| var ('AM_LDFLAGS');
2909	0				0	my $ldvar2 = var ('LDFLAGS');
2910	0	0	0		0	if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2911						\|\| ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2912						{
2913						# Relax name checking for libtool modules.
2914	0				0	$libname_rx = '\.la';
2915						}
2916
2917	0				0	my $bn = basename ($onelib);
2918	0	0			0	if ($bn !~ /$libname_rx$/)
2919						{
2920	0				0	my $type = 'library';
2921	0	0			0	if ($libname_rx eq '\.la')
2922						{
2923	0				0	$bn =~ s/^(lib\|)(.?)(?:\.[^.])?$/$1$2.la/;
2924	0				0	$type = 'module';
2925						}
2926						else
2927						{
2928	0				0	$bn =~ s/^(?:lib)?(.?)(?:\.[^.])?$/lib$1.la/;
2929						}
2930	0				0	my $suggestion = dirname ($onelib) . "/$bn";
2931	0				0	$suggestion =~ s\|^\./\|\|g;
2932	0				0	msg ('error-gnu/warn', $where,
2933						"`$onelib' is not a standard libtool $type name\n"
2934						. "did you mean `$suggestion'?")
2935						}
2936
2937	0				0	($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2938
2939	0				0	$where->push_context ("while processing Libtool library `$onelib'");
2940	0				0	$where->set (INTERNAL->get);
2941
2942						# Make sure we look at these.
2943	0				0	set_seen ($xlib . '_LDFLAGS');
2944	0				0	set_seen ($xlib . '_DEPENDENCIES');
2945
2946						# Generate support for conditional object inclusion in
2947						# libraries.
2948	0	0			0	if (var ($xlib . '_LIBADD'))
2949						{
2950	0	0			0	if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2951						{
2952	0				0	$seen_libobjs = 1;
2953						}
2954						}
2955						else
2956						{
2957	0				0	&define_variable ($xlib . "_LIBADD", '', $where);
2958						}
2959
2960	0				0	reject_var ("${xlib}_LDADD",
2961						"use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2962
2963
2964	0				0	my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2965						NONLIBTOOL => 0, LIBTOOL => 1);
2966
2967						# Determine program to use for link.
2968	0				0	my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2969	0		0		0	$vlink = verbose_flag ($vlink \|\| 'GEN');
2970
2971	0				0	my $rpathvar = "am_${xlib}_rpath";
2972	0				0	my $rpath = "\$($rpathvar)";
2973	0				0	foreach my $rcond ($instconds{$onelib}->conds)
2974						{
2975	0				0	my $val;
2976	0	0	0		0	if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2977						\|\| $instdirs{$onelib}{$rcond} eq 'noinst'
2978						\|\| $instdirs{$onelib}{$rcond} eq 'check')
2979						{
2980						# It's an EXTRA_ library, so we can't specify -rpath,
2981						# because we don't know where the library will end up.
2982						# The user probably knows, but generally speaking automake
2983						# doesn't -- and in fact configure could decide
2984						# dynamically between two different locations.
2985	0				0	$val = '';
2986						}
2987						else
2988						{
2989	0				0	$val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2990	0	0			0	$val .= $instsubdirs{$onelib}{$rcond}
2991						if defined $instsubdirs{$onelib}{$rcond};
2992						}
2993	0	0			0	if ($rcond->true)
2994						{
2995						# If $rcond is true there is only one condition and
2996						# there is no point defining an helper variable.
2997	0				0	$rpath = $val;
2998						}
2999						else
3000						{
3001	0				0	define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3002						}
3003						}
3004
3005						# If the resulting library lies into a subdirectory,
3006						# make sure this directory will exist.
3007	0				0	my $dirstamp = require_build_directory_maybe ($onelib);
3008
3009						# Remember to cleanup .libs/ in this directory.
3010	0				0	my $dirname = dirname $onelib;
3011	0				0	$libtool_clean_directories{$dirname} = 1;
3012
3013	0				0	$output_rules .= &file_contents ('ltlibrary',
3014						$where,
3015						LTLIBRARY => $onelib,
3016						XLTLIBRARY => $xlib,
3017						RPATH => $rpath,
3018						XLINK => $xlink,
3019						VERBOSE => $vlink,
3020						DIRSTAMP => $dirstamp);
3021	0	0			0	if ($seen_libobjs)
3022						{
3023	0	0			0	if (var ($xlib . '_LIBADD'))
3024						{
3025	0				0	&check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3026						}
3027						}
3028						}
3029						}
3030
3031						# See if any _SOURCES variable were misspelled.
3032						sub check_typos ()
3033						{
3034						# It is ok if the user sets this particular variable.
3035	0			0	0	set_seen 'AM_LDFLAGS';
3036
3037	0				0	foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3038						{
3039	0				0	foreach my $var (variables $primary)
3040						{
3041	0				0	my $varname = $var->name;
3042						# A configure variable is always legitimate.
3043	0	0			0	next if exists $configure_vars{$varname};
3044
3045	0				0	for my $cond ($var->conditions->conds)
3046						{
3047	0				0	$varname =~ /^(?:nobase_)?(?:dist_\|nodist_)?(.*)_[[:alnum:]]+$/;
3048	0	0			0	msg_var ('syntax', $var, "variable `$varname' is defined but no"
3049						. " program or\nlibrary has `$1' as canonical name"
3050						. " (possible typo)")
3051						unless $var->rdef ($cond)->seen;
3052						}
3053						}
3054						}
3055						}
3056
3057
3058						# Handle scripts.
3059						sub handle_scripts
3060						{
3061						# NOTE we no longer automatically clean SCRIPTS, because it is
3062						# useful to sometimes distribute scripts verbatim. This happens
3063						# e.g. in Automake itself.
3064	0			0	0	&am_install_var ('-candist', 'scripts', 'SCRIPTS',
3065						'bin', 'sbin', 'libexec', 'pkgdata',
3066						'noinst', 'check');
3067						}
3068
3069
3070
3071
3072						## ------------------------ ##
3073						## Handling Texinfo files. ##
3074						## ------------------------ ##
3075
3076						# ($OUTFILE, $VFILE, @CLEAN_FILES)
3077						# &scan_texinfo_file ($FILENAME)
3078						# ------------------------------
3079						# $OUTFILE - name of the info file produced by $FILENAME.
3080						# $VFILE - name of the version.texi file used (undef if none).
3081						# @CLEAN_FILES - list of byproducts (indexes etc.)
3082						sub scan_texinfo_file ($)
3083						{
3084	0			0	0	my ($filename) = @_;
3085
3086						# Some of the following extensions are always created, no matter
3087						# whether indexes are used or not. Other (like cps, fns, ... pgs)
3088						# are only created when they are used. We used to scan $FILENAME
3089						# for their use, but that is not enough: they could be used in
3090						# included files. We can't scan included files because we don't
3091						# know the include path. Therefore we always erase these files, no
3092						# matter whether they are used or not.
3093						#
3094						# (tmp is only created if an @macro is used and a certain e-TeX
3095						# feature is not available.)
3096	0				0	my %clean_suffixes =
3097	0				0	map { $_ => 1 } (qw(aux log toc tmp
3098						cp cps
3099						fn fns
3100						ky kys
3101						vr vrs
3102						tp tps
3103						pg pgs)); # grep 'new.*index' texinfo.tex
3104
3105	0				0	my $texi = new Automake::XFile "< $filename";
3106	0				0	verb "reading $filename";
3107
3108	0				0	my ($outfile, $vfile);
3109	0				0	while ($_ = $texi->getline)
3110						{
3111	0	0 0 0 0			0	if (/^\@setfilename +(\S+)/)
3112						{
3113						# Honor only the first @setfilename. (It's possible to have
3114						# more occurrences later if the manual shows examples of how
3115						# to use @setfilename...)
3116	0	0			0	next if $outfile;
3117
3118	0				0	$outfile = $1;
3119	0	0	0		0	if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3120						{
3121	0				0	error ("$filename:$.",
3122						"output `$outfile' has unrecognized extension");
3123	0				0	return;
3124						}
3125						}
3126						# A "version.texi" file is actually any file whose name matches
3127						# "vers*.texi".
3128						elsif (/^\@include\s+(vers[^.]\.texi)\s$/)
3129						{
3130	0				0	$vfile = $1;
3131						}
3132
3133						# Try to find new or unused indexes.
3134
3135						# Creating a new category of index.
3136						elsif (/^\@def(code)?index (\w+)/)
3137						{
3138	0				0	$clean_suffixes{$2} = 1;
3139	0				0	$clean_suffixes{"$2s"} = 1;
3140						}
3141
3142						# Merging an index into an another.
3143						elsif (/^\@syn(code)?index (\w+) (\w+)/)
3144						{
3145	0				0	delete $clean_suffixes{"$2s"};
3146	0				0	$clean_suffixes{"$3s"} = 1;
3147						}
3148
3149						}
3150
3151	0	0			0	if (! $outfile)
3152						{
3153	0				0	err_am "`$filename' missing \@setfilename";
3154	0				0	return;
3155						}
3156
3157	0				0	my $infobase = basename ($filename);
3158	0				0	$infobase =~ s/\.te?xi(nfo)?$//;
3159	0				0	return ($outfile, $vfile,
3160	0				0	map { "$infobase.$_" } (sort keys %clean_suffixes));
3161						}
3162
3163
3164						# ($DIRSTAMP, @CLEAN_FILES)
3165						# output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3166						# ------------------------------------------------------------------
3167						# SOURCE - the source Texinfo file
3168						# DEST - the destination Info file
3169						# INSRC - wether DEST should be built in the source tree
3170						# DEPENDENCIES - known dependencies
3171						sub output_texinfo_build_rules ($$$@)
3172						{
3173	0			0	0	my ($source, $dest, $insrc, @deps) = @_;
3174
3175						# Split `a.texi' into `a' and `.texi'.
3176	0				0	my ($spfx, $ssfx) = ($source =~ /^(.?)(\.[^.])?$/);
3177	0				0	my ($dpfx, $dsfx) = ($dest =~ /^(.?)(\.[^.])?$/);
3178
3179	0		0		0	$ssfx \|\|= "";
3180	0		0		0	$dsfx \|\|= "";
3181
3182						# We can output two kinds of rules: the "generic" rules use Make
3183						# suffix rules and are appropriate when $source and $dest do not lie
3184						# in a sub-directory; the "specific" rules are needed in the other
3185						# case.
3186						#
3187						# The former are output only once (this is not really apparent here,
3188						# but just remember that some logic deeper in Automake will not
3189						# output the same rule twice); while the later need to be output for
3190						# each Texinfo source.
3191	0				0	my $generic;
3192	0				0	my $makeinfoflags;
3193	0				0	my $sdir = dirname $source;
3194	0	0	0		0	if ($sdir eq '.' && dirname ($dest) eq '.')
3195						{
3196	0				0	$generic = 1;
3197	0				0	$makeinfoflags = '-I $(srcdir)';
3198						}
3199						else
3200						{
3201	0				0	$generic = 0;
3202	0				0	$makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3203						}
3204
3205						# A directory can contain two kinds of info files: some built in the
3206						# source tree, and some built in the build tree. The rules are
3207						# different in each case. However we cannot output two different
3208						# set of generic rules. Because in-source builds are more usual, we
3209						# use generic rules in this case and fall back to "specific" rules
3210						# for build-dir builds. (It should not be a problem to invert this
3211						# if needed.)
3212	0	0			0	$generic = 0 unless $insrc;
3213
3214						# We cannot use a suffix rule to build info files with an empty
3215						# extension. Otherwise we would output a single suffix inference
3216						# rule, with separate dependencies, as in
3217						#
3218						# .texi:
3219						# $(MAKEINFO) ...
3220						# foo.info: foo.texi
3221						#
3222						# which confuse Solaris make. (See the Autoconf manual for
3223						# details.) Therefore we use a specific rule in this case. This
3224						# applies to info files only (dvi and pdf files always have an
3225						# extension).
3226	0	0	0		0	my $generic_info = ($generic && $dsfx) ? 1 : 0;
3227
3228						# If the resulting file lie into a subdirectory,
3229						# make sure this directory will exist.
3230	0				0	my $dirstamp = require_build_directory_maybe ($dest);
3231
3232	0	0			0	my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3233
3234	0	0 0			0	$output_rules .= file_contents ('texibuild',
3235						new Automake::Location,
3236						DEPS => "@deps",
3237						DEST_PREFIX => $dpfx,
3238						DEST_INFO_PREFIX => $dipfx,
3239						DEST_SUFFIX => $dsfx,
3240						DIRSTAMP => $dirstamp,
3241						GENERIC => $generic,
3242						GENERIC_INFO => $generic_info,
3243						INSRC => $insrc,
3244						MAKEINFOFLAGS => $makeinfoflags,
3245						SOURCE => ($generic
3246						? '$<' : $source),
3247						SOURCE_INFO => ($generic_info
3248						? '$<' : $source),
3249						SOURCE_REAL => $source,
3250						SOURCE_SUFFIX => $ssfx,
3251						);
3252	0				0	return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3253						}
3254
3255
3256						# ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3257						# handle_texinfo_helper ($info_texinfos)
3258						# --------------------------------------
3259						# Handle all Texinfo source; helper for handle_texinfo.
3260						sub handle_texinfo_helper ($)
3261						{
3262	0			0	0	my ($info_texinfos) = @_;
3263	0				0	my (@infobase, @info_deps_list, @texi_deps);
3264	0				0	my %versions;
3265	0				0	my $done = 0;
3266	0				0	my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3267
3268						# Build a regex matching user-cleaned files.
3269	0				0	my $d = var 'DISTCLEANFILES';
3270	0				0	my $c = var 'CLEANFILES';
3271	0				0	my @f = ();
3272	0	0			0	push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3273	0	0			0	push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3274	0 0 0 0				0 0 0 0	@f = map { s\|[^A-Za-z_0-9\[\]\-]\|\\$&\|g; s\|\\|[^/]*\|g; $_; } @f;
3275	0				0	my $user_cleaned_files = '^(?:' . join ('\|', @f) . ')$';
3276
3277	0				0	foreach my $texi
3278						($info_texinfos->value_as_list_recursive (inner_expand => 1))
3279						{
3280	0				0	my $infobase = $texi;
3281	0				0	$infobase =~ s/\.(txi\|texinfo\|texi)$//;
3282
3283	0	0			0	if ($infobase eq $texi)
3284						{
3285						# FIXME: report line number.
3286	0				0	err_am "texinfo file `$texi' has unrecognized extension";
3287	0				0	next;
3288						}
3289
3290	0				0	push @infobase, $infobase;
3291
3292						# If 'version.texi' is referenced by input file, then include
3293						# automatic versioning capability.
3294	0	0			0	my ($out_file, $vtexi, @clean_files) =
3295						scan_texinfo_file ("$relative_dir/$texi")
3296						or next;
3297	0				0	push (@mostly_cleans, @clean_files);
3298
3299						# If the Texinfo source is in a subdirectory, create the
3300						# resulting info in this subdirectory. If it is in the current
3301						# directory, try hard to not prefix "./" because it breaks the
3302						# generic rules.
3303	0				0	my $outdir = dirname ($texi) . '/';
3304	0	0			0	$outdir = "" if $outdir eq './';
3305	0				0	$out_file = $outdir . $out_file;
3306
3307						# Until Automake 1.6.3, .info files were built in the
3308						# source tree. This was an obstacle to the support of
3309						# non-distributed .info files, and non-distributed .texi
3310						# files.
3311						#
3312						# * Non-distributed .texi files is important in some packages
3313						# where .texi files are built at make time, probably using
3314						# other binaries built in the package itself, maybe using
3315						# tools or information found on the build host. Because
3316						# these files are not distributed they are always rebuilt
3317						# at make time; they should therefore not lie in the source
3318						# directory. One plan was to support this using
3319						# nodist_info_TEXINFOS or something similar. (Doing this
3320						# requires some sanity checks. For instance Automake should
3321						# not allow:
3322						# dist_info_TEXINFOS = foo.texi
3323						# nodist_foo_TEXINFOS = included.texi
3324						# because a distributed file should never depend on a
3325						# non-distributed file.)
3326						#
3327						# * If .texi files are not distributed, then .info files should
3328						# not be distributed either. There are also cases where one
3329						# wants to distribute .texi files, but does not want to
3330						# distribute the .info files. For instance the Texinfo package
3331						# distributes the tool used to build these files; it would
3332						# be a waste of space to distribute them. It's not clear
3333						# which syntax we should use to indicate that .info files should
3334						# not be distributed. Akim Demaille suggested that eventually
3335						# we switch to a new syntax:
3336						# \| Maybe we should take some inspiration from what's already
3337						# \| done in the rest of Automake. Maybe there is too much
3338						# \| syntactic sugar here, and you want
3339						# \| nodist_INFO = bar.info
3340						# \| dist_bar_info_SOURCES = bar.texi
3341						# \| bar_texi_DEPENDENCIES = foo.texi
3342						# \| with a bit of magic to have bar.info represent the whole
3343						# \| bar*info set. That's a lot more verbose that the current
3344						# \| situation, but it is # not new, hence the user has less
3345						# \| to learn.
3346						# \|
3347						# \| But there is still too much room for meaningless specs:
3348						# \| nodist_INFO = bar.info
3349						# \| dist_bar_info_SOURCES = bar.texi
3350						# \| dist_PS = bar.ps something-written-by-hand.ps
3351						# \| nodist_bar_ps_SOURCES = bar.texi
3352						# \| bar_texi_DEPENDENCIES = foo.texi
3353						# \| here bar.texi is dist_ in line 2, and nodist_ in 4.
3354						#
3355						# Back to the point, it should be clear that in order to support
3356						# non-distributed .info files, we need to build them in the
3357						# build tree, not in the source tree (non-distributed .texi
3358						# files are less of a problem, because we do not output build
3359						# rules for them). In Automake 1.7 .info build rules have been
3360						# largely cleaned up so that .info files get always build in the
3361						# build tree, even when distributed. The idea was that
3362						# (1) if during a VPATH build the .info file was found to be
3363						# absent or out-of-date (in the source tree or in the
3364						# build tree), Make would rebuild it in the build tree.
3365						# If an up-to-date source-tree of the .info file existed,
3366						# make would not rebuild it in the build tree.
3367						# (2) having two copies of .info files, one in the source tree
3368						# and one (newer) in the build tree is not a problem
3369						# because `make dist' always pick files in the build tree
3370						# first.
3371						# However it turned out the be a bad idea for several reasons:
3372						# * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3373						# like GNU Make on point (1) above. These implementations
3374						# of Make would always rebuild .info files in the build
3375						# tree, even if such files were up to date in the source
3376						# tree. Consequently, it was impossible to perform a VPATH
3377						# build of a package containing Texinfo files using these
3378						# Make implementations.
3379						# (Refer to the Autoconf Manual, section "Limitation of
3380						# Make", paragraph "VPATH", item "target lookup", for
3381						# an account of the differences between these
3382						# implementations.)
3383						# * The GNU Coding Standards require these files to be built
3384						# in the source-tree (when they are distributed, that is).
3385						# * Keeping a fresher copy of distributed files in the
3386						# build tree can be annoying during development because
3387						# - if the files is kept under CVS, you really want it
3388						# to be updated in the source tree
3389						# - it is confusing that `make distclean' does not erase
3390						# all files in the build tree.
3391						#
3392						# Consequently, starting with Automake 1.8, .info files are
3393						# built in the source tree again. Because we still plan to
3394						# support non-distributed .info files at some point, we
3395						# have a single variable ($INSRC) that controls whether
3396						# the current .info file must be built in the source tree
3397						# or in the build tree. Actually this variable is switched
3398						# off for .info files that appear to be cleaned; this is
3399						# for backward compatibility with package such as Texinfo,
3400						# which do things like
3401						# info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3402						# DISTCLEANFILES = texinfo texinfo-* info.info
3403						# # Do not create info files for distribution.
3404						# dist-info:
3405						# in order not to distribute .info files.
3406	0	0			0	my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3407
3408	0				0	my $soutdir = '$(srcdir)/' . $outdir;
3409	0	0			0	$outdir = $soutdir if $insrc;
3410
3411						# If user specified file_TEXINFOS, then use that as explicit
3412						# dependency list.
3413	0				0	@texi_deps = ();
3414	0	0			0	push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3415
3416	0				0	my $canonical = canonicalize ($infobase);
3417	0	0			0	if (var ($canonical . "_TEXINFOS"))
3418						{
3419	0				0	push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3420	0				0	push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3421						}
3422
3423	0				0	my ($dirstamp, @cfiles) =
3424						output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3425	0				0	push (@texi_cleans, @cfiles);
3426
3427	0				0	push (@info_deps_list, $out_file);
3428
3429						# If a vers*.texi file is needed, emit the rule.
3430	0	0			0	if ($vtexi)
3431						{
3432	0	0			0	err_am ("`$vtexi', included in `$texi', "
3433						. "also included in `$versions{$vtexi}'")
3434						if defined $versions{$vtexi};
3435	0				0	$versions{$vtexi} = $texi;
3436
3437						# We number the stamp-vti files. This is doable since the
3438						# actual names don't matter much. We only number starting
3439						# with the second one, so that the common case looks nice.
3440	0	0			0	my $vti = ($done ? $done : 'vti');
3441	0				0	++$done;
3442
3443						# This is ugly, but it is our historical practice.
3444	0	0			0	if ($config_aux_dir_set_in_configure_ac)
3445						{
3446	0				0	require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3447						'mdate-sh');
3448						}
3449						else
3450						{
3451	0				0	require_file_with_macro (TRUE, 'info_TEXINFOS',
3452						FOREIGN, 'mdate-sh');
3453						}
3454
3455	0				0	my $conf_dir;
3456	0	0			0	if ($config_aux_dir_set_in_configure_ac)
3457						{
3458	0				0	$conf_dir = "$am_config_aux_dir/";
3459						}
3460						else
3461						{
3462	0				0	$conf_dir = '$(srcdir)/';
3463						}
3464	0				0	$output_rules .= file_contents ('texi-vers',
3465						new Automake::Location,
3466						TEXI => $texi,
3467						VTI => $vti,
3468						STAMPVTI => "${soutdir}stamp-$vti",
3469						VTEXI => "$soutdir$vtexi",
3470						MDDIR => $conf_dir,
3471						DIRSTAMP => $dirstamp);
3472						}
3473						}
3474
3475						# Handle location of texinfo.tex.
3476	0				0	my $need_texi_file = 0;
3477	0				0	my $texinfodir;
3478	0	0 0 0			0	if (var ('TEXINFO_TEX'))
3479						{
3480						# The user defined TEXINFO_TEX so assume he knows what he is
3481						# doing.
3482	0				0	$texinfodir = ('$(srcdir)/'
3483						. dirname (variable_value ('TEXINFO_TEX')));
3484						}
3485						elsif (option 'cygnus')
3486						{
3487	0				0	$texinfodir = '$(top_srcdir)/../texinfo';
3488	0				0	define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3489						}
3490						elsif ($config_aux_dir_set_in_configure_ac)
3491						{
3492	0				0	$texinfodir = $am_config_aux_dir;
3493	0				0	define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3494	0				0	$need_texi_file = 2; # so that we require_conf_file later
3495						}
3496						else
3497						{
3498	0				0	$texinfodir = '$(srcdir)';
3499	0				0	$need_texi_file = 1;
3500						}
3501	0				0	define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3502
3503	0				0	push (@dist_targets, 'dist-info');
3504
3505	0	0			0	if (! option 'no-installinfo')
3506						{
3507						# Make sure documentation is made and installed first. Use
3508						# $(INFO_DEPS), not 'info', because otherwise recursive makes
3509						# get run twice during "make all".
3510	0				0	unshift (@all, '$(INFO_DEPS)');
3511						}
3512
3513	0				0	define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3514	0				0	define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3515	0				0	define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3516	0				0	define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3517
3518						# This next isn't strictly needed now -- the places that look here
3519						# could easily be changed to look in info_TEXINFOS. But this is
3520						# probably better, in case noinst_TEXINFOS is ever supported.
3521	0				0	define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3522
3523						# Do some error checking. Note that this file is not required
3524						# when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3525						# up above.
3526	0	0	0		0	if ($need_texi_file && ! option 'no-texinfo.tex')
3527						{
3528	0	0			0	if ($need_texi_file > 1)
3529						{
3530	0				0	require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3531						'texinfo.tex');
3532						}
3533						else
3534						{
3535	0				0	require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3536						'texinfo.tex');
3537						}
3538						}
3539
3540	0				0	return (makefile_wrap ("", "\t ", @mostly_cleans),
3541						makefile_wrap ("", "\t ", @texi_cleans),
3542						makefile_wrap ("", "\t ", @maint_cleans));
3543						}
3544
3545
3546						# handle_texinfo ()
3547						# -----------------
3548						# Handle all Texinfo source.
3549						sub handle_texinfo ()
3550						{
3551	0			0	0	reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3552						# FIXME: I think this is an obsolete future feature name.
3553	0				0	reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3554
3555	0				0	my $info_texinfos = var ('info_TEXINFOS');
3556	0				0	my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3557	0	0			0	if ($info_texinfos)
3558						{
3559	0				0	($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3560	0				0	chomp $mostlyclean;
3561	0				0	chomp $clean;
3562	0				0	chomp $maintclean;
3563						}
3564
3565	0				0	$output_rules .= file_contents ('texinfos',
3566						new Automake::Location,
3567						MOSTLYCLEAN => $mostlyclean,
3568						TEXICLEAN => $clean,
3569						MAINTCLEAN => $maintclean,
3570						'LOCAL-TEXIS' => !!$info_texinfos);
3571						}
3572
3573
3574						# Handle any man pages.
3575						sub handle_man_pages
3576						{
3577	0			0	0	reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3578
3579						# Find all the sections in use. We do this by first looking for
3580						# "standard" sections, and then looking for any additional
3581						# sections used in man_MANS.
3582	0				0	my (%sections, %notrans_sections, %trans_sections,
3583						%notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3584						# We handle nodist_ for uniformity. man pages aren't distributed
3585						# by default so it isn't actually very important.
3586	0				0	foreach my $npfx ('', 'notrans_')
3587						{
3588	0				0	foreach my $pfx ('', 'dist_', 'nodist_')
3589						{
3590						# Add more sections as needed.
3591	0				0	foreach my $section ('0'..'9', 'n', 'l')
3592						{
3593	0				0	my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3594	0	0			0	if (var ($varname))
3595						{
3596	0				0	$sections{$section} = 1;
3597	0				0	$varname = '$(' . $varname . ')';
3598	0	0			0	if ($npfx eq 'notrans_')
3599						{
3600	0				0	$notrans_sections{$section} = 1;
3601	0				0	$notrans_sect_vars{$varname} = 1;
3602						}
3603						else
3604						{
3605	0				0	$trans_sections{$section} = 1;
3606	0				0	$trans_sect_vars{$varname} = 1;
3607						}
3608
3609	0	0			0	&push_dist_common ($varname)
3610						if $pfx eq 'dist_';
3611						}
3612						}
3613
3614	0				0	my $varname = $npfx . $pfx . 'man_MANS';
3615	0				0	my $var = var ($varname);
3616	0	0			0	if ($var)
3617						{
3618	0				0	foreach ($var->value_as_list_recursive)
3619						{
3620						# A page like `foo.1c' goes into man1dir.
3621	0	0			0	if (/\.([0-9a-z])([a-z]*)$/)
3622						{
3623	0				0	$sections{$1} = 1;
3624	0	0			0	if ($npfx eq 'notrans_')
3625						{
3626	0				0	$notrans_sections{$1} = 1;
3627						}
3628						else
3629						{
3630	0				0	$trans_sections{$1} = 1;
3631						}
3632						}
3633						}
3634
3635	0				0	$varname = '$(' . $varname . ')';
3636	0	0			0	if ($npfx eq 'notrans_')
3637						{
3638	0				0	$notrans_vars{$varname} = 1;
3639						}
3640						else
3641						{
3642	0				0	$trans_vars{$varname} = 1;
3643						}
3644	0	0			0	&push_dist_common ($varname)
3645						if $pfx eq 'dist_';
3646						}
3647						}
3648						}
3649
3650	0	0			0	return unless %sections;
3651
3652	0				0	my @unsorted_deps;
3653
3654						# Build section independent variables.
3655	0				0	my $have_notrans = %notrans_vars;
3656	0				0	my @notrans_list = sort keys %notrans_vars;
3657	0				0	my $have_trans = %trans_vars;
3658	0				0	my @trans_list = sort keys %trans_vars;
3659
3660						# Now for each section, generate an install and uninstall rule.
3661						# Sort sections so output is deterministic.
3662	0				0	foreach my $section (sort keys %sections)
3663						{
3664						# Build section dependent variables.
3665	0		0		0	my $notrans_mans = $have_notrans \|\| exists $notrans_sections{$section};
3666	0		0		0	my $trans_mans = $have_trans \|\| exists $trans_sections{$section};
3667	0				0	my (%notrans_this_sect, %trans_this_sect);
3668	0				0	my $expr = 'man' . $section . '_MANS';
3669	0				0	foreach my $varname (keys %notrans_sect_vars)
3670						{
3671	0	0			0	if ($varname =~ /$expr/)
3672						{
3673	0				0	$notrans_this_sect{$varname} = 1;
3674						}
3675						}
3676	0				0	foreach my $varname (keys %trans_sect_vars)
3677						{
3678	0	0			0	if ($varname =~ /$expr/)
3679						{
3680	0				0	$trans_this_sect{$varname} = 1;
3681						}
3682						}
3683	0				0	my @notrans_sect_list = sort keys %notrans_this_sect;
3684	0				0	my @trans_sect_list = sort keys %trans_this_sect;
3685	0				0	@unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3686						keys %notrans_this_sect, keys %trans_this_sect);
3687	0				0	my @deps = sort @unsorted_deps;
3688	0				0	$output_rules .= &file_contents ('mans',
3689						new Automake::Location,
3690						SECTION => $section,
3691						DEPS => "@deps",
3692						NOTRANS_MANS => $notrans_mans,
3693						NOTRANS_SECT_LIST => "@notrans_sect_list",
3694						HAVE_NOTRANS => $have_notrans,
3695						NOTRANS_LIST => "@notrans_list",
3696						TRANS_MANS => $trans_mans,
3697						TRANS_SECT_LIST => "@trans_sect_list",
3698						HAVE_TRANS => $have_trans,
3699						TRANS_LIST => "@trans_list");
3700						}
3701
3702	0				0	@unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3703						keys %notrans_sect_vars, keys %trans_sect_vars);
3704	0				0	my @mans = sort @unsorted_deps;
3705	0				0	$output_vars .= file_contents ('mans-vars',
3706						new Automake::Location,
3707						MANS => "@mans");
3708
3709	0	0			0	push (@all, '$(MANS)')
3710						unless option 'no-installman';
3711						}
3712
3713						# Handle DATA variables.
3714						sub handle_data
3715						{
3716	0			0	0	&am_install_var ('-noextra', '-candist', 'data', 'DATA',
3717						'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3718						'sysconf', 'sharedstate', 'localstate',
3719						'pkgdata', 'lisp', 'noinst', 'check');
3720						}
3721
3722						# Handle TAGS.
3723						sub handle_tags
3724						{
3725	0			0	0	my @tag_deps = ();
3726	0				0	my @ctag_deps = ();
3727	0	0			0	if (var ('SUBDIRS'))
3728						{
3729	0				0	$output_rules .= ("tags-recursive:\n"
3730						. "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3731						# Never fail here if a subdir fails; it
3732						# isn't important.
3733						. "\t test \"\$\$subdir\" = . \|\| (\$(am__cd) \$\$subdir"
3734						. " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3735						. "\tdone\n");
3736	0				0	push (@tag_deps, 'tags-recursive');
3737	0				0	&depend ('.PHONY', 'tags-recursive');
3738	0				0	&depend ('.MAKE', 'tags-recursive');
3739
3740	0				0	$output_rules .= ("ctags-recursive:\n"
3741						. "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3742						# Never fail here if a subdir fails; it
3743						# isn't important.
3744						. "\t test \"\$\$subdir\" = . \|\| (\$(am__cd) \$\$subdir"
3745						. " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3746						. "\tdone\n");
3747	0				0	push (@ctag_deps, 'ctags-recursive');
3748	0				0	&depend ('.PHONY', 'ctags-recursive');
3749	0				0	&depend ('.MAKE', 'ctags-recursive');
3750						}
3751
3752	0	0 0	0		0	if (&saw_sources_p (1)
3753						\|\| var ('ETAGS_ARGS')
3754						\|\| @tag_deps)
3755						{
3756	0				0	my @config;
3757	0				0	foreach my $spec (@config_headers)
3758						{
3759	0				0	my ($out, @ins) = split_config_file_spec ($spec);
3760	0				0	foreach my $in (@ins)
3761						{
3762						# If the config header source is in this directory,
3763						# require it.
3764	0	0			0	push @config, basename ($in)
3765						if $relative_dir eq dirname ($in);
3766						}
3767						}
3768	0				0	$output_rules .= &file_contents ('tags',
3769						new Automake::Location,
3770						CONFIG => "@config",
3771						TAGSDIRS => "@tag_deps",
3772						CTAGSDIRS => "@ctag_deps");
3773
3774	0				0	set_seen 'TAGS_DEPENDENCIES';
3775						}
3776						elsif (reject_var ('TAGS_DEPENDENCIES',
3777						"doesn't make sense to define `TAGS_DEPENDENCIES'"
3778						. "without\nsources or `ETAGS_ARGS'"))
3779						{
3780						}
3781						else
3782						{
3783						# Every Makefile must define some sort of TAGS rule.
3784						# Otherwise, it would be possible for a top-level "make TAGS"
3785						# to fail because some subdirectory failed.
3786	0				0	$output_rules .= "tags: TAGS\nTAGS:\n\n";
3787						# Ditto ctags.
3788	0				0	$output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3789						}
3790						}
3791
3792						# Handle multilib support.
3793						sub handle_multilib
3794						{
3795	0	0	0	0	0	if ($seen_multilib && $relative_dir eq '.')
3796						{
3797	0				0	$output_rules .= &file_contents ('multilib', new Automake::Location);
3798	0				0	push (@all, 'all-multi');
3799						}
3800						}
3801
3802
3803						# user_phony_rule ($NAME)
3804						# -----------------------
3805						# Return false if rule $NAME does not exist. Otherwise,
3806						# declare it as phony, complete its definition (in case it is
3807						# conditional), and return its Automake::Rule instance.
3808						sub user_phony_rule ($)
3809						{
3810	0			0	0	my ($name) = @_;
3811	0				0	my $rule = rule $name;
3812	0	0			0	if ($rule)
3813						{
3814	0				0	depend ('.PHONY', $name);
3815						# Define $NAME in all condition where it is not already defined,
3816						# so that it is always OK to depend on $NAME.
3817	0				0	for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3818						{
3819	0				0	Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3820						$c, INTERNAL);
3821	0				0	$output_rules .= $c->subst_string . "$name:\n";
3822						}
3823						}
3824	0				0	return $rule;
3825						}
3826
3827
3828						# $BOOLEAN
3829						# &for_dist_common ($A, $B)
3830						# -------------------------
3831						# Subroutine for &handle_dist: sort files to dist.
3832						#
3833						# We put README first because it then becomes easier to make a
3834						# Usenet-compliant shar file (in these, README must be first).
3835						#
3836						# FIXME: do more ordering of files here.
3837						sub for_dist_common
3838						{
3839	0	0		0	0	return 0
3840						if $a eq $b;
3841	0	0			0	return -1
3842						if $a eq 'README';
3843	0	0			0	return 1
3844						if $b eq 'README';
3845	0				0	return $a cmp $b;
3846						}
3847
3848						# handle_dist
3849						# -----------
3850						# Handle 'dist' target.
3851						sub handle_dist ()
3852						{
3853						# Substitutions for distdir.am
3854	0			0	0	my %transform;
3855
3856						# Define DIST_SUBDIRS. This must always be done, regardless of the
3857						# no-dist setting: target like `distclean' or `maintainer-clean' use it.
3858	0				0	my $subdirs = var ('SUBDIRS');
3859	0	0			0	if ($subdirs)
3860						{
3861						# If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3862						# to all possible directories, and use it. If DIST_SUBDIRS is
3863						# defined, just use it.
3864
3865						# Note that we check DIST_SUBDIRS first on purpose, so that
3866						# we don't call has_conditional_contents for now reason.
3867						# (In the past one project used so many conditional subdirectories
3868						# that calling has_conditional_contents on SUBDIRS caused
3869						# automake to grow to 150Mb -- this should not happen with
3870						# the current implementation of has_conditional_contents,
3871						# but it's more efficient to avoid the call anyway.)
3872	0	0 0			0	if (var ('DIST_SUBDIRS'))
3873						{
3874						}
3875						elsif ($subdirs->has_conditional_contents)
3876						{
3877	0				0	define_pretty_variable
3878						('DIST_SUBDIRS', TRUE, INTERNAL,
3879						uniq ($subdirs->value_as_list_recursive));
3880						}
3881						else
3882						{
3883						# We always define this because that is what `distclean'
3884						# wants.
3885	0				0	define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3886						'$(SUBDIRS)');
3887						}
3888						}
3889
3890						# The remaining definitions are only required when a dist target is used.
3891	0	0			0	return if option 'no-dist';
3892
3893						# At least one of the archive formats must be enabled.
3894	0	0			0	if ($relative_dir eq '.')
3895						{
3896	0	0			0	my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3897	0				0	$archive_defined \|\|=
3898	0		0		0	grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzma xz);
3899	0	0			0	error (option 'no-dist-gzip',
3900						"no-dist-gzip specified but no dist-* specified, "
3901						. "at least one archive format must be enabled")
3902						unless $archive_defined;
3903						}
3904
3905						# Look for common files that should be included in distribution.
3906						# If the aux dir is set, and it does not have a Makefile.am, then
3907						# we check for these files there as well.
3908	0				0	my $check_aux = 0;
3909	0	0	0		0	if ($relative_dir eq '.'
3910						&& $config_aux_dir_set_in_configure_ac)
3911						{
3912	0	0			0	if (! &is_make_dir ($config_aux_dir))
3913						{
3914	0				0	$check_aux = 1;
3915						}
3916						}
3917	0				0	foreach my $cfile (@common_files)
3918						{
3919	0	0	0		0	if (dir_has_case_matching_file ($relative_dir, $cfile)
3920						# The file might be absent, but if it can be built it's ok.
3921						\|\| rule $cfile)
3922						{
3923	0				0	&push_dist_common ($cfile);
3924						}
3925
3926						# Don't use `elsif' here because a file might meaningfully
3927						# appear in both directories.
3928	0	0	0		0	if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3929						{
3930	0				0	&push_dist_common ("$config_aux_dir/$cfile")
3931						}
3932						}
3933
3934						# We might copy elements from $configure_dist_common to
3935						# %dist_common if we think we need to. If the file appears in our
3936						# directory, we would have discovered it already, so we don't
3937						# check that. But if the file is in a subdir without a Makefile,
3938						# we want to distribute it here if we are doing `.'. Ugly!
3939	0	0			0	if ($relative_dir eq '.')
3940						{
3941	0				0	foreach my $file (split (' ' , $configure_dist_common))
3942						{
3943	0	0			0	push_dist_common ($file)
3944						unless is_make_dir (dirname ($file));
3945						}
3946						}
3947
3948						# Files to distributed. Don't use ->value_as_list_recursive
3949						# as it recursively expands `$(dist_pkgdata_DATA)' etc.
3950	0				0	my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3951	0				0	@dist_common = uniq (sort for_dist_common (@dist_common));
3952	0				0	variable_delete 'DIST_COMMON';
3953	0				0	define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3954
3955						# Now that we've processed DIST_COMMON, disallow further attempts
3956						# to set it.
3957	0				0	$handle_dist_run = 1;
3958
3959						# Scan EXTRA_DIST to see if we need to distribute anything from a
3960						# subdir. If so, add it to the list. I didn't want to do this
3961						# originally, but there were so many requests that I finally
3962						# relented.
3963	0				0	my $extra_dist = var ('EXTRA_DIST');
3964
3965	0				0	$transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3966	0		0		0	$transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3967
3968						# If the target `dist-hook' exists, make sure it is run. This
3969						# allows users to do random weird things to the distribution
3970						# before it is packaged up.
3971	0	0			0	push (@dist_targets, 'dist-hook')
3972						if user_phony_rule 'dist-hook';
3973	0				0	$transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3974
3975	0				0	my $flm = option ('filename-length-max');
3976	0	0			0	my $filename_filter = $flm ? '.' x $flm->[1] : '';
3977
3978	0				0	$output_rules .= &file_contents ('distdir',
3979						new Automake::Location,
3980						%transform,
3981						FILENAME_FILTER => $filename_filter);
3982						}
3983
3984
3985						# check_directory ($NAME, $WHERE)
3986						# -------------------------------
3987						# Ensure $NAME is a directory, and that it uses a sane name.
3988						# Use $WHERE as a location in the diagnostic, if any.
3989						sub check_directory ($$)
3990						{
3991	0			0	0	my ($dir, $where) = @_;
3992
3993	0	0			0	error $where, "required directory $relative_dir/$dir does not exist"
3994						unless -d "$relative_dir/$dir";
3995
3996						# If an `obj/' directory exists, BSD make will enter it before
3997						# reading `Makefile'. Hence the `Makefile' in the current directory
3998						# will not be read.
3999						#
4000						# % cat Makefile
4001						# all:
4002						# echo Hello
4003						# % cat obj/Makefile
4004						# all:
4005						# echo World
4006						# % make # GNU make
4007						# echo Hello
4008						# Hello
4009						# % pmake # BSD make
4010						# echo World
4011						# World
4012	0	0			0	msg ('portability', $where,
4013						"naming a subdirectory `obj' causes troubles with BSD make")
4014						if $dir eq 'obj';
4015
4016						# `aux' is probably the most important of the following forbidden name,
4017						# since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4018	0	0			0	msg ('portability', $where,
4019						"name `$dir' is reserved on W32 and DOS platforms")
4020						if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4021						}
4022
4023						# check_directories_in_var ($VARIABLE)
4024						# ------------------------------------
4025						# Recursively check all items in variables $VARIABLE as directories
4026						sub check_directories_in_var ($)
4027						{
4028	0			0	0	my ($var) = @_;
4029						$var->traverse_recursively
4030						(sub
4031						{
4032	0			0	0	my ($var, $val, $cond, $full_cond) = @_;
4033	0				0	check_directory ($val, $var->rdef ($cond)->location);
4034	0				0	return ();
4035						},
4036						undef,
4037	0				0	skip_ac_subst => 1);
4038						}
4039
4040						# &handle_subdirs ()
4041						# ------------------
4042						# Handle subdirectories.
4043						sub handle_subdirs ()
4044						{
4045	0			0	0	my $subdirs = var ('SUBDIRS');
4046						return
4047	0	0			0	unless $subdirs;
4048
4049	0				0	check_directories_in_var $subdirs;
4050
4051	0				0	my $dsubdirs = var ('DIST_SUBDIRS');
4052	0	0			0	check_directories_in_var $dsubdirs
4053						if $dsubdirs;
4054
4055	0				0	$output_rules .= &file_contents ('subdirs', new Automake::Location);
4056	0				0	rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4057						}
4058
4059
4060						# ($REGEN, @DEPENDENCIES)
4061						# &scan_aclocal_m4
4062						# ----------------
4063						# If aclocal.m4 creation is automated, return the list of its dependencies.
4064						sub scan_aclocal_m4 ()
4065						{
4066	0			0	0	my $regen_aclocal = 0;
4067
4068	0				0	set_seen 'CONFIG_STATUS_DEPENDENCIES';
4069	0				0	set_seen 'CONFIGURE_DEPENDENCIES';
4070
4071	0	0			0	if (-f 'aclocal.m4')
4072						{
4073	0				0	&define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4074
4075	0				0	my $aclocal = new Automake::XFile "< aclocal.m4";
4076	0				0	my $line = $aclocal->getline;
4077	0				0	$regen_aclocal = $line =~ 'generated automatically by aclocal';
4078						}
4079
4080	0				0	my @ac_deps = ();
4081
4082	0	0			0	if (set_seen ('ACLOCAL_M4_SOURCES'))
4083						{
4084	0				0	push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4085	0				0	msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4086						"`ACLOCAL_M4_SOURCES' is obsolete.\n"
4087						. "It should be safe to simply remove it.");
4088						}
4089
4090						# Note that it might be possible that aclocal.m4 doesn't exist but
4091						# should be auto-generated. This case probably isn't very
4092						# important.
4093
4094	0				0	return ($regen_aclocal, @ac_deps);
4095						}
4096
4097
4098						# Helper function for substitute_ac_subst_variables.
4099						sub substitute_ac_subst_variables_worker($)
4100						{
4101	0			0	0	my ($token) = @_;
4102	0	0			0	return "\@$token\@" if var $token;
4103	0				0	return "\${$token\}";
4104						}
4105
4106						# substitute_ac_subst_variables ($TEXT)
4107						# -------------------------------------
4108						# Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4109						# variable.
4110						sub substitute_ac_subst_variables ($)
4111						{
4112	0			0	0	my ($text) = @_;
4113	0 0				0 0	$text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4114	0				0	return $text;
4115						}
4116
4117						# @DEPENDENCIES
4118						# &prepend_srcdir (@INPUTS)
4119						# -------------------------
4120						# Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4121						# if an input file has a directory part the same as the current
4122						# directory, then the directory part is simply replaced by $(srcdir).
4123						# But if the directory part is different, then $(top_srcdir) is
4124						# prepended.
4125						sub prepend_srcdir (@)
4126						{
4127	0			0	0	my (@inputs) = @_;
4128	0				0	my @newinputs;
4129
4130	0				0	foreach my $single (@inputs)
4131						{
4132	0	0			0	if (dirname ($single) eq $relative_dir)
4133						{
4134	0				0	push (@newinputs, '$(srcdir)/' . basename ($single));
4135						}
4136						else
4137						{
4138	0				0	push (@newinputs, '$(top_srcdir)/' . $single);
4139						}
4140						}
4141	0				0	return @newinputs;
4142						}
4143
4144						# @DEPENDENCIES
4145						# rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4146						# ---------------------------------------------------
4147						# Compute a list of dependencies appropriate for the rebuild
4148						# rule of
4149						# AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4150						# Also distribute $INPUTs which are not built by another AC_CONFIG_FOOS.
4151						sub rewrite_inputs_into_dependencies ($@)
4152						{
4153	0			0	0	my ($file, @inputs) = @_;
4154	0				0	my @res = ();
4155
4156	0				0	for my $i (@inputs)
4157						{
4158						# We cannot create dependencies on shell variables.
4159	0	0			0	next if (substitute_ac_subst_variables $i) =~ /\$/;
4160
4161	0	0	0		0	if (exists $ac_config_files_location{$i} && $i ne $file)
4162						{
4163	0				0	my $di = dirname $i;
4164	0	0 0			0	if ($di eq $relative_dir)
4165						{
4166	0				0	$i = basename $i;
4167						}
4168						# In the top-level Makefile we do not use $(top_builddir), because
4169						# we are already there, and since the targets are built without
4170						# a $(top_builddir), it helps BSD Make to match them with
4171						# dependencies.
4172						elsif ($relative_dir ne '.')
4173						{
4174	0				0	$i = '$(top_builddir)/' . $i;
4175						}
4176						}
4177						else
4178						{
4179	0	0	0		0	msg ('error', $ac_config_files_location{$file},
4180						"required file `$i' not found")
4181						unless $i =~ /\$/ \|\| exists $output_files{$i} \|\| -f $i;
4182	0				0	($i) = prepend_srcdir ($i);
4183	0				0	push_dist_common ($i);
4184						}
4185	0				0	push @res, $i;
4186						}
4187	0				0	return @res;
4188						}
4189
4190
4191
4192						# &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4193						# ------------------------------------------------------------------
4194						# Handle remaking and configure stuff.
4195						# We need the name of the input file, to do proper remaking rules.
4196						sub handle_configure ($$$@)
4197						{
4198	0			0	0	my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4199
4200	0	0			0	prog_error 'empty @inputs'
4201						unless @inputs;
4202
4203	0				0	my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4204						$makefile_in);
4205	0				0	my $rel_makefile = basename $makefile;
4206
4207	0				0	my $colon_infile = ':' . join (':', @inputs);
4208	0	0			0	$colon_infile = '' if $colon_infile eq ":$makefile.in";
4209	0				0	my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4210	0				0	my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4211	0				0	define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4212						@configure_deps, @aclocal_m4_deps,
4213						'$(top_srcdir)/' . $configure_ac);
4214	0				0	my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4215	0	0			0	push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4216	0				0	define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4217						@configuredeps);
4218
4219	0	0 0			0	my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4220						. (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4221
4222	0	0			0	$output_rules .= file_contents
4223						('configure',
4224						new Automake::Location,
4225						MAKEFILE => $rel_makefile,
4226						'MAKEFILE-DEPS' => "@rewritten",
4227						'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4228						'MAKEFILE-IN' => $rel_makefile_in,
4229						'MAKEFILE-IN-DEPS' => "@include_stack",
4230						'MAKEFILE-AM' => $rel_makefile_am,
4231						'AUTOMAKE-OPTIONS' => $automake_options,
4232						'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4233						'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4234						VERBOSE => verbose_flag ('GEN'));
4235
4236	0	0			0	if ($relative_dir eq '.')
4237						{
4238	0	0			0	&push_dist_common ('acconfig.h')
4239						if -f 'acconfig.h';
4240						}
4241
4242						# If we have a configure header, require it.
4243	0				0	my $hdr_index = 0;
4244	0				0	my @distclean_config;
4245	0				0	foreach my $spec (@config_headers)
4246						{
4247	0				0	$hdr_index += 1;
4248						# $CONFIG_H_PATH: config.h from top level.
4249	0				0	my ($config_h_path, @ins) = split_config_file_spec ($spec);
4250	0				0	my $config_h_dir = dirname ($config_h_path);
4251
4252						# If the header is in the current directory we want to build
4253						# the header here. Otherwise, if we're at the topmost
4254						# directory and the header's directory doesn't have a
4255						# Makefile, then we also want to build the header.
4256	0	0	0		0	if ($relative_dir eq $config_h_dir
4257						\|\| ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4258						{
4259	0				0	my ($cn_sans_dir, $stamp_dir);
4260	0	0			0	if ($relative_dir eq $config_h_dir)
4261						{
4262	0				0	$cn_sans_dir = basename ($config_h_path);
4263	0				0	$stamp_dir = '';
4264						}
4265						else
4266						{
4267	0				0	$cn_sans_dir = $config_h_path;
4268	0	0			0	if ($config_h_dir eq '.')
4269						{
4270	0				0	$stamp_dir = '';
4271						}
4272						else
4273						{
4274	0				0	$stamp_dir = $config_h_dir . '/';
4275						}
4276						}
4277
4278						# This will also distribute all inputs.
4279	0				0	@ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4280
4281						# Cannot define rebuild rules for filenames with shell variables.
4282	0	0			0	next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4283
4284						# Header defined in this directory.
4285	0				0	my @files;
4286	0	0			0	if (-f $config_h_path . '.top')
4287						{
4288	0				0	push (@files, "$cn_sans_dir.top");
4289						}
4290	0	0			0	if (-f $config_h_path . '.bot')
4291						{
4292	0				0	push (@files, "$cn_sans_dir.bot");
4293						}
4294
4295	0				0	push_dist_common (@files);
4296
4297						# For now, acconfig.h can only appear in the top srcdir.
4298	0	0			0	if (-f 'acconfig.h')
4299						{
4300	0				0	push (@files, '$(top_srcdir)/acconfig.h');
4301						}
4302
4303	0				0	my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4304	0				0	$output_rules .=
4305						file_contents ('remake-hdr',
4306						new Automake::Location,
4307						FILES => "@files",
4308						CONFIG_H => $cn_sans_dir,
4309						CONFIG_HIN => $ins[0],
4310						CONFIG_H_DEPS => "@ins",
4311						CONFIG_H_PATH => $config_h_path,
4312						STAMP => "$stamp");
4313
4314	0				0	push @distclean_config, $cn_sans_dir, $stamp;
4315						}
4316						}
4317
4318	0	0			0	$output_rules .= file_contents ('clean-hdr',
4319						new Automake::Location,
4320						FILES => "@distclean_config")
4321						if @distclean_config;
4322
4323						# Distribute and define mkinstalldirs only if it is already present
4324						# in the package, for backward compatibility (some people may still
4325						# use $(mkinstalldirs)).
4326	0				0	my $mkidpath = "$config_aux_dir/mkinstalldirs";
4327	0	0			0	if (-f $mkidpath)
4328						{
4329						# Use require_file so that any existing script gets updated
4330						# by --force-missing.
4331	0				0	require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4332	0				0	define_variable ('mkinstalldirs',
4333						"\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4334						}
4335						else
4336						{
4337						# Use $(install_sh), not $(MKDIR_P) because the latter requires
4338						# at least one argument, and $(mkinstalldirs) used to work
4339						# even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4340	0				0	define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4341						}
4342
4343	0				0	reject_var ('CONFIG_HEADER',
4344						"`CONFIG_HEADER' is an anachronism; now determined "
4345						. "automatically\nfrom `$configure_ac'");
4346
4347	0				0	my @config_h;
4348	0				0	foreach my $spec (@config_headers)
4349						{
4350	0				0	my ($out, @ins) = split_config_file_spec ($spec);
4351						# Generate CONFIG_HEADER define.
4352	0	0			0	if ($relative_dir eq dirname ($out))
4353						{
4354	0				0	push @config_h, basename ($out);
4355						}
4356						else
4357						{
4358	0				0	push @config_h, "\$(top_builddir)/$out";
4359						}
4360						}
4361	0	0			0	define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4362						if @config_h;
4363
4364						# Now look for other files in this directory which must be remade
4365						# by config.status, and generate rules for them.
4366	0				0	my @actual_other_files = ();
4367						# These get cleaned only in a VPATH build.
4368	0				0	my @actual_other_vpath_files = ();
4369	0				0	foreach my $lfile (@other_input_files)
4370						{
4371	0				0	my $file;
4372	0				0	my @inputs;
4373	0	0			0	if ($lfile =~ /^([^:]):(.)$/)
4374						{
4375						# This is the ":" syntax of AC_OUTPUT.
4376	0				0	$file = $1;
4377	0				0	@inputs = split (':', $2);
4378						}
4379						else
4380						{
4381						# Normal usage.
4382	0				0	$file = $lfile;
4383	0				0	@inputs = $file . '.in';
4384						}
4385
4386						# Automake files should not be stored in here, but in %MAKE_LIST.
4387	0	0			0	prog_error ("$lfile in \@other_input_files\n"
4388						. "\@other_input_files = (@other_input_files)")
4389						if -f $file . '.am';
4390
4391	0				0	my $local = basename ($file);
4392
4393						# We skip files that aren't in this directory. However, if
4394						# the file's directory does not have a Makefile, and we are
4395						# currently doing `.', then we create a rule to rebuild the
4396						# file in the subdir.
4397	0				0	my $fd = dirname ($file);
4398	0	0			0	if ($fd ne $relative_dir)
4399						{
4400	0	0	0		0	if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4401						{
4402	0				0	$local = $file;
4403						}
4404						else
4405						{
4406	0				0	next;
4407						}
4408						}
4409
4410	0				0	my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4411
4412						# Cannot output rules for shell variables.
4413	0	0			0	next if (substitute_ac_subst_variables $local) =~ /\$/;
4414
4415	0				0	my $condstr = '';
4416	0				0	my $cond = $ac_config_files_condition{$lfile};
4417	0	0			0	if (defined $cond)
4418						{
4419	0				0	$condstr = $cond->subst_string;
4420	0				0	Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4421						$ac_config_files_location{$file});
4422						}
4423	0	0			0	$output_rules .= ($condstr . $local . ': '
4424						. '$(top_builddir)/config.status '
4425						. "@rewritten_inputs\n"
4426						. $condstr . "\t"
4427						. 'cd $(top_builddir) && '
4428						. '$(SHELL) ./config.status '
4429						. ($relative_dir eq '.' ? '' : '$(subdir)/')
4430						. '$@'
4431						. "\n");
4432	0				0	push (@actual_other_files, $local);
4433						}
4434
4435						# For links we should clean destinations and distribute sources.
4436	0				0	foreach my $spec (@config_links)
4437						{
4438	0				0	my ($link, $file) = split /:/, $spec;
4439						# Some people do AC_CONFIG_LINKS($computed). We only handle
4440						# the DEST:SRC form.
4441	0	0			0	next unless $file;
4442	0				0	my $where = $ac_config_files_location{$link};
4443
4444						# Skip destinations that contain shell variables.
4445	0	0			0	if ((substitute_ac_subst_variables $link) !~ /\$/)
4446						{
4447						# We skip links that aren't in this directory. However, if
4448						# the link's directory does not have a Makefile, and we are
4449						# currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4450						# in `.'s Makefile.in.
4451	0				0	my $local = basename ($link);
4452	0				0	my $fd = dirname ($link);
4453	0	0			0	if ($fd ne $relative_dir)
4454						{
4455	0	0	0		0	if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4456						{
4457	0				0	$local = $link;
4458						}
4459						else
4460						{
4461	0				0	$local = undef;
4462						}
4463						}
4464	0	0			0	if ($file ne $link)
4465						{
4466	0	0			0	push @actual_other_files, $local if $local;
4467						}
4468						else
4469						{
4470	0	0			0	push @actual_other_vpath_files, $local if $local;
4471						}
4472						}
4473
4474						# Do not process sources that contain shell variables.
4475	0	0			0	if ((substitute_ac_subst_variables $file) !~ /\$/)
4476						{
4477	0				0	my $fd = dirname ($file);
4478
4479						# We distribute files that are in this directory.
4480						# At the top-level (`.') we also distribute files whose
4481						# directory does not have a Makefile.
4482	0	0	0		0	if (($fd eq $relative_dir)
4483						\|\| ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4484						{
4485						# The following will distribute $file as a side-effect when
4486						# it is appropriate (i.e., when $file is not already an output).
4487						# We do not need the result, just the side-effect.
4488	0				0	rewrite_inputs_into_dependencies ($link, $file);
4489						}
4490						}
4491						}
4492
4493						# These files get removed by "make distclean".
4494	0				0	define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4495						@actual_other_files);
4496	0				0	define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4497						@actual_other_vpath_files);
4498						}
4499
4500						# Handle C headers.
4501						sub handle_headers
4502						{
4503	0			0	0	my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4504						'oldinclude', 'pkginclude',
4505						'noinst', 'check');
4506	0				0	foreach (@r)
4507						{
4508	0	0			0	next unless $_->[1] =~ /\..*$/;
4509	0				0	&saw_extension ($&);
4510						}
4511						}
4512
4513						sub handle_gettext
4514						{
4515	0	0	0	0	0	return if ! $seen_gettext \|\| $relative_dir ne '.';
4516
4517	0				0	my $subdirs = var 'SUBDIRS';
4518
4519	0	0			0	if (! $subdirs)
4520						{
4521	0				0	err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4522	0				0	return;
4523						}
4524
4525						# Perform some sanity checks to help users get the right setup.
4526						# We disable these tests when po/ doesn't exist in order not to disallow
4527						# unusual gettext setups.
4528						#
4529						# Bruno Haible:
4530						# \| The idea is:
4531						# \|
4532						# \| 1) If a package doesn't have a directory po/ at top level, it
4533						# \| will likely have multiple po/ directories in subpackages.
4534						# \|
4535						# \| 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4536						# \| is used without 'external'. It is also useful to warn for the
4537						# \| presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4538						# \| warnings apply only to the usual layout of packages, therefore
4539						# \| they should both be disabled if no po/ directory is found at
4540						# \| top level.
4541
4542	0	0			0	if (-d 'po')
4543						{
4544	0				0	my @subdirs = $subdirs->value_as_list_recursive;
4545
4546	0	0			0	msg_var ('syntax', $subdirs,
4547						"AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4548						if ! grep ($_ eq 'po', @subdirs);
4549
4550						# intl/ is not required when AM_GNU_GETTEXT is called with the
4551						# `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4552	0	0	0 0		0	msg_var ('syntax', $subdirs,
4553						"AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4554						if (! ($seen_gettext_external && ! $seen_gettext_intl)
4555						&& ! grep ($_ eq 'intl', @subdirs));
4556
4557						# intl/ should not be used with AM_GNU_GETTEXT([external]), except
4558						# if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4559	0	0	0		0	msg_var ('syntax', $subdirs,
4560						"`intl' should not be in SUBDIRS when "
4561						. "AM_GNU_GETTEXT([external]) is used")
4562						if ($seen_gettext_external && ! $seen_gettext_intl
4563						&& grep ($_ eq 'intl', @subdirs));
4564						}
4565
4566	0				0	require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4567						}
4568
4569						# Handle footer elements.
4570						sub handle_footer
4571						{
4572	0			0	0	reject_rule ('.SUFFIXES',
4573						"use variable `SUFFIXES', not target `.SUFFIXES'");
4574
4575						# Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4576						# before .SUFFIXES. So we make sure that .SUFFIXES appears before
4577						# anything else, by sticking it right after the default: target.
4578	0				0	$output_header .= ".SUFFIXES:\n";
4579	0				0	my $suffixes = var 'SUFFIXES';
4580	0				0	my @suffixes = Automake::Rule::suffixes;
4581	0	0	0		0	if (@suffixes \|\| $suffixes)
4582						{
4583						# Make sure SUFFIXES has unique elements. Sort them to ensure
4584						# the output remains consistent. However, $(SUFFIXES) is
4585						# always at the start of the list, unsorted. This is done
4586						# because make will choose rules depending on the ordering of
4587						# suffixes, and this lets the user have some control. Push
4588						# actual suffixes, and not $(SUFFIXES). Some versions of make
4589						# do not like variable substitutions on the .SUFFIXES line.
4590	0	0			0	my @user_suffixes = ($suffixes
4591						? $suffixes->value_as_list_recursive : ());
4592
4593	0 0				0 0	my %suffixes = map { $_ => 1 } @suffixes;
4594	0				0	delete @suffixes{@user_suffixes};
4595
4596	0				0	$output_header .= (".SUFFIXES: "
4597						. join (' ', @user_suffixes, sort keys %suffixes)
4598						. "\n");
4599						}
4600
4601	0				0	$output_trailer .= file_contents ('footer', new Automake::Location);
4602						}
4603
4604
4605						# Generate `make install' rules.
4606						sub handle_install ()
4607						{
4608	0	0 0	0	0	0	$output_rules .= &file_contents
4609						('install',
4610						new Automake::Location,
4611						maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4612						? (" \$(BUILT_SOURCES)\n"
4613						. "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4614						: ''),
4615						'installdirs-local' => (user_phony_rule 'installdirs-local'
4616						? ' installdirs-local' : ''),
4617						am__installdirs => variable_value ('am__installdirs') \|\| '');
4618						}
4619
4620
4621						# Deal with all and all-am.
4622						sub handle_all ($)
4623						{
4624	0			0	0	my ($makefile) = @_;
4625
4626						# Output `all-am'.
4627
4628						# Put this at the beginning for the sake of non-GNU makes. This
4629						# is still wrong if these makes can run parallel jobs. But it is
4630						# right enough.
4631	0				0	unshift (@all, basename ($makefile));
4632
4633	0				0	foreach my $spec (@config_headers)
4634						{
4635	0				0	my ($out, @ins) = split_config_file_spec ($spec);
4636	0	0			0	push (@all, basename ($out))
4637						if dirname ($out) eq $relative_dir;
4638						}
4639
4640						# Install `all' hooks.
4641	0	0			0	push (@all, "all-local")
4642						if user_phony_rule "all-local";
4643
4644	0				0	&pretty_print_rule ("all-am:", "\t\t", @all);
4645	0				0	&depend ('.PHONY', 'all-am', 'all');
4646
4647
4648						# Output `all'.
4649
4650	0				0	my @local_headers = ();
4651	0	0			0	push @local_headers, '$(BUILT_SOURCES)'
4652						if var ('BUILT_SOURCES');
4653	0				0	foreach my $spec (@config_headers)
4654						{
4655	0				0	my ($out, @ins) = split_config_file_spec ($spec);
4656	0	0			0	push @local_headers, basename ($out)
4657						if dirname ($out) eq $relative_dir;
4658						}
4659
4660	0	0			0	if (@local_headers)
4661						{
4662						# We need to make sure config.h is built before we recurse.
4663						# We also want to make sure that built sources are built
4664						# before any ordinary `all' targets are run. We can't do this
4665						# by changing the order of dependencies to the "all" because
4666						# that breaks when using parallel makes. Instead we handle
4667						# things explicitly.
4668	0	0			0	$output_all .= ("all: @local_headers"
4669						. "\n\t"
4670						. '$(MAKE) $(AM_MAKEFLAGS) '
4671						. (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4672						. "\n\n");
4673	0				0	depend ('.MAKE', 'all');
4674						}
4675						else
4676						{
4677	0	0			0	$output_all .= "all: " . (var ('SUBDIRS')
4678						? 'all-recursive' : 'all-am') . "\n\n";
4679						}
4680						}
4681
4682
4683						# &do_check_merge_target ()
4684						# -------------------------
4685						# Handle check merge target specially.
4686						sub do_check_merge_target ()
4687						{
4688						# Include user-defined local form of target.
4689	0	0		0	0	push @check_tests, 'check-local'
4690						if user_phony_rule 'check-local';
4691
4692						# In --cygnus mode, check doesn't depend on all.
4693	0	0			0	if (option 'cygnus')
4694						{
4695						# Just run the local check rules.
4696	0				0	pretty_print_rule ('check-am:', "\t\t", @check);
4697						}
4698						else
4699						{
4700						# The check target must depend on the local equivalent of
4701						# `all', to ensure all the primary targets are built. Then it
4702						# must build the local check rules.
4703	0				0	$output_rules .= "check-am: all-am\n";
4704	0	0			0	if (@check)
4705						{
4706	0				0	pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4707						@check);
4708	0				0	depend ('.MAKE', 'check-am');
4709						}
4710						}
4711	0	0			0	if (@check_tests)
4712						{
4713	0				0	pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4714						@check_tests);
4715	0				0	depend ('.MAKE', 'check-am');
4716						}
4717
4718	0				0	depend '.PHONY', 'check', 'check-am';
4719						# Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4720	0	0 0			0	$output_rules .= ("check: "
4721						. (var ('BUILT_SOURCES')
4722						? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4723						: '')
4724						. (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4725						. "\n");
4726	0	0			0	depend ('.MAKE', 'check')
4727						if var ('BUILT_SOURCES');
4728						}
4729
4730						# handle_clean ($MAKEFILE)
4731						# ------------------------
4732						# Handle all 'clean' targets.
4733						sub handle_clean ($)
4734						{
4735	0			0	0	my ($makefile) = @_;
4736
4737						# Clean the files listed in user variables if they exist.
4738	0	0			0	$clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4739						if var ('MOSTLYCLEANFILES');
4740	0	0			0	$clean_files{'$(CLEANFILES)'} = CLEAN
4741						if var ('CLEANFILES');
4742	0	0			0	$clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4743						if var ('DISTCLEANFILES');
4744	0	0			0	$clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4745						if var ('MAINTAINERCLEANFILES');
4746
4747						# Built sources are automatically removed by maintainer-clean.
4748	0	0			0	$clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4749						if var ('BUILT_SOURCES');
4750
4751						# Compute a list of "rm"s to run for each target.
4752	0				0	my %rms = (MOSTLY_CLEAN, [],
4753						CLEAN, [],
4754						DIST_CLEAN, [],
4755						MAINTAINER_CLEAN, []);
4756
4757	0				0	foreach my $file (keys %clean_files)
4758						{
4759	0				0	my $when = $clean_files{$file};
4760	0	0			0	prog_error 'invalid entry in %clean_files'
4761						unless exists $rms{$when};
4762
4763	0				0	my $rm = "rm -f $file";
4764						# If file is a variable, make sure when don't call `rm -f' without args.
4765	0	0			0	$rm ="test -z \"$file\" \|\| $rm"
4766						if ($file =~ /^\s\$($.$\|\{.\})\s$/);
4767
4768	0 0				0 0	push @{$rms{$when}}, "\t-$rm\n";
4769						}
4770
4771	0				0	$output_rules .= &file_contents
4772						('clean',
4773						new Automake::Location,
4774	0				0	MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4775	0				0	CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4776	0				0	DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4777	0				0	MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4778						MAKEFILE => basename $makefile,
4779						);
4780						}
4781
4782
4783						# &target_cmp ($A, $B)
4784						# --------------------
4785						# Subroutine for &handle_factored_dependencies to let `.PHONY' and
4786						# other `.TARGETS' be last.
4787						sub target_cmp
4788						{
4789	0	0		0	0	return 0 if $a eq $b;
4790
4791	0				0	my $a1 = substr ($a, 0, 1);
4792	0				0	my $b1 = substr ($b, 0, 1);
4793	0	0			0	if ($a1 ne $b1)
4794						{
4795	0	0			0	return -1 if $b1 eq '.';
4796	0	0			0	return 1 if $a1 eq '.';
4797						}
4798	0				0	return $a cmp $b;
4799						}
4800
4801
4802						# &handle_factored_dependencies ()
4803						# --------------------------------
4804						# Handle everything related to gathered targets.
4805						sub handle_factored_dependencies
4806						{
4807						# Reject bad hooks.
4808	0			0	0	foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4809						'uninstall-exec-local', 'uninstall-exec-hook',
4810						'uninstall-dvi-local',
4811						'uninstall-html-local',
4812						'uninstall-info-local',
4813						'uninstall-pdf-local',
4814						'uninstall-ps-local')
4815						{
4816	0				0	my $x = $utarg;
4817	0				0	$x =~ s/-.*-/-/;
4818	0				0	reject_rule ($utarg, "use `$x', not `$utarg'");
4819						}
4820
4821	0				0	reject_rule ('install-local',
4822						"use `install-data-local' or `install-exec-local', "
4823						. "not `install-local'");
4824
4825	0				0	reject_rule ('install-hook',
4826						"use `install-data-hook' or `install-exec-hook', "
4827						. "not `install-hook'");
4828
4829						# Install the -local hooks.
4830	0				0	foreach (keys %dependencies)
4831						{
4832						# Hooks are installed on the -am targets.
4833	0	0			0	s/-am$// or next;
4834	0	0			0	depend ("$_-am", "$_-local")
4835						if user_phony_rule "$_-local";
4836						}
4837
4838						# Install the -hook hooks.
4839						# FIXME: Why not be as liberal as we are with -local hooks?
4840	0				0	foreach ('install-exec', 'install-data', 'uninstall')
4841						{
4842	0	0			0	if (user_phony_rule "$_-hook")
4843						{
4844	0				0	depend ('.MAKE', "$_-am");
4845	0				0	register_action("$_-am",
4846						("\t\@\$(NORMAL_INSTALL)\n"
4847						. "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4848						}
4849						}
4850
4851						# All the required targets are phony.
4852	0				0	depend ('.PHONY', keys %required_targets);
4853
4854						# Actually output gathered targets.
4855	0				0	foreach (sort target_cmp keys %dependencies)
4856						{
4857						# If there is nothing about this guy, skip it.
4858						next
4859	0 0	0	0		0 0	unless (@{$dependencies{$_}}
4860						\|\| $actions{$_}
4861						\|\| $required_targets{$_});
4862
4863						# Define gathered targets in undefined conditions.
4864						# FIXME: Right now we must handle .PHONY as an exception,
4865						# because people write things like
4866						# .PHONY: myphonytarget
4867						# to append dependencies. This would not work if Automake
4868						# refrained from defining its own .PHONY target as it does
4869						# with other overridden targets.
4870						# Likewise for `.MAKE'.
4871	0				0	my @undefined_conds = (TRUE,);
4872	0	0	0		0	if ($_ ne '.PHONY' && $_ ne '.MAKE')
4873						{
4874	0				0	@undefined_conds =
4875						Automake::Rule::define ($_, 'internal',
4876						RULE_AUTOMAKE, TRUE, INTERNAL);
4877						}
4878	0 0				0 0	my @uniq_deps = uniq (sort @{$dependencies{$_}});
4879	0				0	foreach my $cond (@undefined_conds)
4880						{
4881	0				0	my $condstr = $cond->subst_string;
4882	0				0	&pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4883	0	0			0	$output_rules .= $actions{$_} if defined $actions{$_};
4884	0				0	$output_rules .= "\n";
4885						}
4886						}
4887						}
4888
4889
4890						# &handle_tests_dejagnu ()
4891						# ------------------------
4892						sub handle_tests_dejagnu
4893						{
4894	0			0	0	push (@check_tests, 'check-DEJAGNU');
4895	0				0	$output_rules .= file_contents ('dejagnu', new Automake::Location);
4896						}
4897
4898
4899						# Handle TESTS variable and other checks.
4900						sub handle_tests
4901						{
4902	0	0		0	0	if (option 'dejagnu')
4903						{
4904	0				0	&handle_tests_dejagnu;
4905						}
4906						else
4907						{
4908	0				0	foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4909						{
4910	0				0	reject_var ($c, "`$c' defined but `dejagnu' not in "
4911						. "`AUTOMAKE_OPTIONS'");
4912						}
4913						}
4914
4915	0	0			0	if (var ('TESTS'))
4916						{
4917	0				0	push (@check_tests, 'check-TESTS');
4918	0				0	$output_rules .= &file_contents ('check', new Automake::Location,
4919						COLOR => !! option 'color-tests',
4920						PARALLEL_TESTS => !! option 'parallel-tests');
4921
4922						# Tests that are known programs should have $(EXEEXT) appended.
4923						# For matching purposes, we need to adjust XFAIL_TESTS as well.
4924	0 0			0	0 0	append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4925	0 0	0		0	0 0	append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4926						if (var ('XFAIL_TESTS'));
4927
4928	0	0			0	if (option 'parallel-tests')
4929						{
4930	0				0	define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4931	0				0	define_variable ('TEST_SUITE_HTML', '$(TEST_SUITE_LOG:.log=.html)', INTERNAL);
4932	0				0	my $suff = '.test';
4933	0				0	my $at_exeext = '';
4934	0				0	my $handle_exeext = exists $configure_vars{'EXEEXT'};
4935	0	0			0	if ($handle_exeext)
4936						{
4937	0				0	$at_exeext = subst ('EXEEXT');
4938	0				0	$suff = $at_exeext . ' ' . $suff;
4939						}
4940	0				0	define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4941						# FIXME: this mishandles conditions.
4942	0				0	my @test_suffixes = (var 'TEST_EXTENSIONS')->value_as_list_recursive;
4943	0	0			0	if ($handle_exeext)
4944						{
4945	0	0			0	unshift (@test_suffixes, $at_exeext)
4946						unless $test_suffixes[0] eq $at_exeext;
4947						}
4948	0				0	unshift (@test_suffixes, '');
4949
4950						transform_variable_recursively
4951						('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4952						sub {
4953	0			0	0	my ($subvar, $val, $cond, $full_cond) = @_;
4954	0				0	my $obj = $val;
4955	0	0			0	return $obj
4956						if $val =~ /^\@.*\@$/;
4957	0				0	$obj =~ s/\$$EXEEXT$$//o;
4958
4959	0	0			0	if ($val =~ /(\$$(top_)?srcdir$)\//o)
4960						{
4961	0				0	msg ('error', $subvar->rdef ($cond)->location,
4962						"parallel-tests: using `$1' in TESTS is currently broken: `$val'");
4963						}
4964
4965	0				0	foreach my $test_suffix (@test_suffixes)
4966						{
4967						next
4968	0	0	0		0	if $test_suffix eq $at_exeext \|\| $test_suffix eq '';
4969	0	0			0	return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4970						if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4971						}
4972	0				0	$obj .= '.log';
4973	0				0	my $compile = 'LOG_COMPILE';
4974	0				0	define_variable ($compile,
4975						'$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
4976	0				0	$output_rules .= file_contents ('check2', new Automake::Location,
4977						GENERIC => 0,
4978						OBJ => $obj,
4979						SOURCE => $val,
4980						COMPILE =>'$(' . $compile . ')',
4981						EXT => '',
4982						am__EXEEXT => 'FALSE');
4983	0				0	return $obj;
4984	0				0	});
4985
4986	0				0	my $nhelper=1;
4987	0				0	my $prev = 'TESTS';
4988	0				0	my $post = '';
4989	0				0	my $last_suffix = $test_suffixes[$#test_suffixes];
4990	0				0	my $cur = '';
4991	0				0	foreach my $test_suffix (@test_suffixes)
4992						{
4993	0	0			0	if ($test_suffix eq $last_suffix)
4994						{
4995	0				0	$cur = 'TEST_LOGS';
4996						}
4997						else
4998						{
4999	0				0	$cur = 'am__test_logs' . $nhelper;
5000						}
5001	0				0	define_variable ($cur,
5002						'$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5003	0				0	$post = '.log';
5004	0				0	$prev = $cur;
5005	0				0	$nhelper++;
5006	0	0	0		0	if ($test_suffix ne $at_exeext && $test_suffix ne '')
5007						{
5008	0				0	(my $ext = $test_suffix) =~ s/^\.//;
5009	0				0	$ext = uc $ext;
5010	0				0	my $compile = $ext . '_LOG_COMPILE';
5011	0				0	define_variable ($compile,
5012						'$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5013						. ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5014	0	0			0	my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5015	0				0	$output_rules .= file_contents ('check2', new Automake::Location,
5016						GENERIC => 1,
5017						OBJ => '',
5018						SOURCE => '$<',
5019						COMPILE => '$(' . $compile . ')',
5020						EXT => $test_suffix,
5021						am__EXEEXT => $am_exeext);
5022						}
5023						}
5024
5025	0				0	define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5026
5027	0				0	$clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5028	0				0	$clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5029	0				0	$clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5030	0				0	$clean_files{'$(TEST_SUITE_HTML)'} = MOSTLY_CLEAN;
5031						}
5032						}
5033						}
5034
5035						# Handle Emacs Lisp.
5036						sub handle_emacs_lisp
5037						{
5038	0			0	0	my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5039						'lisp', 'noinst');
5040
5041	0	0			0	return if ! @elfiles;
5042
5043	0				0	define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5044	0				0	map { $_->[1] } @elfiles);
5045	0				0	define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5046						'$(am__ELFILES:.el=.elc)');
5047						# This one can be overridden by users.
5048	0				0	define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5049
5050	0				0	push @all, '$(ELCFILES)';
5051
5052	0				0	require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5053						'EMACS', 'lispdir');
5054	0				0	require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5055	0				0	&define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5056						}
5057
5058						# Handle Python
5059						sub handle_python
5060						{
5061	0			0	0	my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5062						'noinst');
5063	0	0			0	return if ! @pyfiles;
5064
5065	0				0	require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5066	0				0	require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5067	0				0	&define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5068						}
5069
5070						# Handle Java.
5071						sub handle_java
5072						{
5073	0			0	0	my @sourcelist = &am_install_var ('-candist',
5074						'java', 'JAVA',
5075						'java', 'noinst', 'check');
5076	0	0			0	return if ! @sourcelist;
5077
5078	0				0	my @prefix = am_primary_prefixes ('JAVA', 1,
5079						'java', 'noinst', 'check');
5080
5081	0				0	my $dir;
5082	0				0	foreach my $curs (@prefix)
5083						{
5084						next
5085	0	0			0	if $curs eq 'EXTRA';
5086
5087	0	0			0	err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5088						if defined $dir;
5089	0				0	$dir = $curs;
5090						}
5091
5092
5093	0				0	push (@all, 'class' . $dir . '.stamp');
5094						}
5095
5096
5097						# Handle some of the minor options.
5098						sub handle_minor_options
5099						{
5100	0	0		0	0	if (option 'readme-alpha')
5101						{
5102	0	0			0	if ($relative_dir eq '.')
5103						{
5104	0	0			0	if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5105						{
5106	0				0	msg ('error-gnits', $package_version_location,
5107						"version `$package_version' doesn't follow " .
5108						"Gnits standards");
5109						}
5110	0	0	0		0	if (defined $1 && -f 'README-alpha')
5111						{
5112						# This means we have an alpha release. See
5113						# GNITS_VERSION_PATTERN for details.
5114	0				0	push_dist_common ('README-alpha');
5115						}
5116						}
5117						}
5118						}
5119
5120						################################################################
5121
5122						# ($OUTPUT, @INPUTS)
5123						# &split_config_file_spec ($SPEC)
5124						# -------------------------------
5125						# Decode the Autoconf syntax for config files (files, headers, links
5126						# etc.).
5127						sub split_config_file_spec ($)
5128						{
5129	0			0	0	my ($spec) = @_;
5130	0				0	my ($output, @inputs) = split (/:/, $spec);
5131
5132	0	0			0	push @inputs, "$output.in"
5133						unless @inputs;
5134
5135	0				0	return ($output, @inputs);
5136						}
5137
5138						# $input
5139						# locate_am (@POSSIBLE_SOURCES)
5140						# -----------------------------
5141						# AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5142						# This functions returns the first .in file for which a .am exists.
5143						# It returns undef otherwise.
5144						sub locate_am (@)
5145						{
5146	0			0	0	my (@rest) = @_;
5147	0				0	my $input;
5148	0				0	foreach my $file (@rest)
5149						{
5150	0	0	0		0	if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5151						{
5152	0				0	$input = $file;
5153	0				0	last;
5154						}
5155						}
5156	0				0	return $input;
5157						}
5158
5159	1				2	my %make_list;
5160
5161						# &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5162						# ---------------------------------------------------
5163						# Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5164						# (or AC_OUTPUT).
5165						sub scan_autoconf_config_files ($$)
5166						{
5167	0			0	0	my ($where, $config_files) = @_;
5168
5169						# Look at potential Makefile.am's.
5170	0				0	foreach (split ' ', $config_files)
5171						{
5172						# Must skip empty string for Perl 4.
5173	0	0	0		0	next if $_ eq "\\" \|\| $_ eq '';
5174
5175						# Handle $local:$input syntax.
5176	0				0	my ($local, @rest) = split (/:/);
5177	0	0			0	@rest = ("$local.in",) unless @rest;
5178	0	0			0	msg ('portability', $where,
5179						"Omit leading `./' from config file names such as `$local',"
5180						. "\nas not all make implementations treat `file' and `./file' equally.")
5181						if ($local =~ /^\.\//);
5182	0				0	my $input = locate_am @rest;
5183	0	0			0	if ($input)
5184						{
5185						# We have a file that automake should generate.
5186	0				0	$make_list{$input} = join (':', ($local, @rest));
5187						}
5188						else
5189						{
5190						# We have a file that automake should cause to be
5191						# rebuilt, but shouldn't generate itself.
5192	0				0	push (@other_input_files, $_);
5193						}
5194	0				0	$ac_config_files_location{$local} = $where;
5195	0	0			0	$ac_config_files_condition{$local} =
5196						new Automake::Condition (@cond_stack)
5197						if (@cond_stack);
5198						}
5199						}
5200
5201
5202						# &scan_autoconf_traces ($FILENAME)
5203						# ---------------------------------
5204						sub scan_autoconf_traces ($)
5205						{
5206	0			0	0	my ($filename) = @_;
5207
5208						# Macros to trace, with their minimal number of arguments.
5209						#
5210						# IMPORTANT: If you add a macro here, you should also add this macro
5211						# ========= to Automake-preselection in autoconf/lib/autom4te.in.
5212	0				0	my %traced = (
5213						AC_CANONICAL_BUILD => 0,
5214						AC_CANONICAL_HOST => 0,
5215						AC_CANONICAL_TARGET => 0,
5216						AC_CONFIG_AUX_DIR => 1,
5217						AC_CONFIG_FILES => 1,
5218						AC_CONFIG_HEADERS => 1,
5219						AC_CONFIG_LIBOBJ_DIR => 1,
5220						AC_CONFIG_LINKS => 1,
5221						AC_FC_SRCEXT => 1,
5222						AC_INIT => 0,
5223						AC_LIBSOURCE => 1,
5224						AC_REQUIRE_AUX_FILE => 1,
5225						AC_SUBST_TRACE => 1,
5226						AM_AUTOMAKE_VERSION => 1,
5227						AM_CONDITIONAL => 2,
5228						AM_ENABLE_MULTILIB => 0,
5229						AM_GNU_GETTEXT => 0,
5230						AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5231						AM_INIT_AUTOMAKE => 0,
5232						AM_MAINTAINER_MODE => 0,
5233						AM_PROG_CC_C_O => 0,
5234						AM_SILENT_RULES => 0,
5235						_AM_SUBST_NOTMAKE => 1,
5236						_AM_COND_IF => 1,
5237						_AM_COND_ELSE => 1,
5238						_AM_COND_ENDIF => 1,
5239						LT_SUPPORTED_TAG => 1,
5240						_LT_AC_TAGCONFIG => 0,
5241						m4_include => 1,
5242						m4_sinclude => 1,
5243						sinclude => 1,
5244						);
5245
5246	0		0		0	my $traces = ($ENV{AUTOCONF} \|\| 'autoconf') . " ";
5247
5248						# Use a separator unlikely to be used, not `:', the default, which
5249						# has a precise meaning for AC_CONFIG_FILES and so on.
5250	0				0	$traces .= join (' ',
5251	0				0	map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5252						(keys %traced));
5253
5254	0				0	my $tracefh = new Automake::XFile ("$traces $filename \|");
5255	0				0	verb "reading $traces";
5256
5257	0				0	@cond_stack = ();
5258	0				0	my $where;
5259
5260	0				0	while ($_ = $tracefh->getline)
5261						{
5262	0				0	chomp;
5263	0				0	my ($here, $depth, @args) = split (/::/);
5264	0				0	$where = new Automake::Location $here;
5265	0				0	my $macro = $args[0];
5266
5267	0	0			0	prog_error ("unrequested trace `$macro'")
5268						unless exists $traced{$macro};
5269
5270						# Skip and diagnose malformed calls.
5271	0	0			0	if ($#args < $traced{$macro})
5272						{
5273	0				0	msg ('syntax', $where, "not enough arguments for $macro");
5274	0				0	next;
5275						}
5276
5277						# Alphabetical ordering please.
5278	0	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0	0		0	if ($macro eq 'AC_CANONICAL_BUILD')
5279						{
5280	0	0			0	if ($seen_canonical <= AC_CANONICAL_BUILD)
5281						{
5282	0				0	$seen_canonical = AC_CANONICAL_BUILD;
5283	0				0	$canonical_location = $where;
5284						}
5285						}
5286						elsif ($macro eq 'AC_CANONICAL_HOST')
5287						{
5288	0	0			0	if ($seen_canonical <= AC_CANONICAL_HOST)
5289						{
5290	0				0	$seen_canonical = AC_CANONICAL_HOST;
5291	0				0	$canonical_location = $where;
5292						}
5293						}
5294						elsif ($macro eq 'AC_CANONICAL_TARGET')
5295						{
5296	0				0	$seen_canonical = AC_CANONICAL_TARGET;
5297	0				0	$canonical_location = $where;
5298						}
5299						elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5300						{
5301	0	0			0	if ($seen_init_automake)
5302						{
5303	0				0	error ($where, "AC_CONFIG_AUX_DIR must be called before "
5304						. "AM_INIT_AUTOMAKE...", partial => 1);
5305	0				0	error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5306						}
5307	0				0	$config_aux_dir = $args[1];
5308	0				0	$config_aux_dir_set_in_configure_ac = 1;
5309	0				0	$relative_dir = '.';
5310	0				0	check_directory ($config_aux_dir, $where);
5311						}
5312						elsif ($macro eq 'AC_CONFIG_FILES')
5313						{
5314						# Look at potential Makefile.am's.
5315	0				0	scan_autoconf_config_files ($where, $args[1]);
5316						}
5317						elsif ($macro eq 'AC_CONFIG_HEADERS')
5318						{
5319	0				0	foreach my $spec (split (' ', $args[1]))
5320						{
5321	0				0	my ($dest, @src) = split (':', $spec);
5322	0				0	$ac_config_files_location{$dest} = $where;
5323	0				0	push @config_headers, $spec;
5324						}
5325						}
5326						elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5327						{
5328	0				0	$config_libobj_dir = $args[1];
5329	0				0	$relative_dir = '.';
5330	0				0	check_directory ($config_libobj_dir, $where);
5331						}
5332						elsif ($macro eq 'AC_CONFIG_LINKS')
5333						{
5334	0				0	foreach my $spec (split (' ', $args[1]))
5335						{
5336	0				0	my ($dest, $src) = split (':', $spec);
5337	0				0	$ac_config_files_location{$dest} = $where;
5338	0				0	push @config_links, $spec;
5339						}
5340						}
5341						elsif ($macro eq 'AC_FC_SRCEXT')
5342						{
5343	0				0	my $suffix = $args[1];
5344						# These flags are used as %SOURCEFLAG% in depend2.am,
5345						# where the trailing space is important.
5346	0	0	0		0	$sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5347						if ($suffix eq 'f90' \|\| $suffix eq 'f95' \|\| $suffix eq 'f03' \|\| $suffix eq 'f08');
5348						}
5349						elsif ($macro eq 'AC_INIT')
5350						{
5351	0	0			0	if (defined $args[2])
5352						{
5353	0				0	$package_version = $args[2];
5354	0				0	$package_version_location = $where;
5355						}
5356						}
5357						elsif ($macro eq 'AC_LIBSOURCE')
5358						{
5359	0				0	$libsources{$args[1]} = $here;
5360						}
5361						elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5362						{
5363						# Only remember the first time a file is required.
5364	0	0			0	$required_aux_file{$args[1]} = $where
5365						unless exists $required_aux_file{$args[1]};
5366						}
5367						elsif ($macro eq 'AC_SUBST_TRACE')
5368						{
5369						# Just check for alphanumeric in AC_SUBST_TRACE. If you do
5370						# AC_SUBST(5), then too bad.
5371	0	0			0	$configure_vars{$args[1]} = $where
5372						if $args[1] =~ /^\w+$/;
5373						}
5374						elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5375						{
5376	0	0			0	error ($where,
5377						"version mismatch. This is Automake $VERSION,\n" .
5378						"but the definition used by this AM_INIT_AUTOMAKE\n" .
5379						"comes from Automake $args[1]. You should recreate\n" .
5380						"aclocal.m4 with aclocal and run automake again.\n",
5381						# $? = 63 is used to indicate version mismatch to missing.
5382						exit_code => 63)
5383						if $VERSION ne $args[1];
5384
5385	0				0	$seen_automake_version = 1;
5386						}
5387						elsif ($macro eq 'AM_CONDITIONAL')
5388						{
5389	0				0	$configure_cond{$args[1]} = $where;
5390						}
5391						elsif ($macro eq 'AM_ENABLE_MULTILIB')
5392						{
5393	0				0	$seen_multilib = $where;
5394						}
5395						elsif ($macro eq 'AM_GNU_GETTEXT')
5396						{
5397	0				0	$seen_gettext = $where;
5398	0				0	$ac_gettext_location = $where;
5399	0				0	$seen_gettext_external = grep ($_ eq 'external', @args);
5400						}
5401						elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5402						{
5403	0				0	$seen_gettext_intl = $where;
5404						}
5405						elsif ($macro eq 'AM_INIT_AUTOMAKE')
5406						{
5407	0				0	$seen_init_automake = $where;
5408	0	0 0			0	if (defined $args[2])
5409						{
5410	0				0	$package_version = $args[2];
5411	0				0	$package_version_location = $where;
5412						}
5413						elsif (defined $args[1])
5414						{
5415	0	0			0	exit $exit_code
5416						if (process_global_option_list ($where,
5417						split (' ', $args[1])));
5418						}
5419						}
5420						elsif ($macro eq 'AM_MAINTAINER_MODE')
5421						{
5422	0				0	$seen_maint_mode = $where;
5423						}
5424						elsif ($macro eq 'AM_PROG_CC_C_O')
5425						{
5426	0				0	$seen_cc_c_o = $where;
5427						}
5428						elsif ($macro eq 'AM_SILENT_RULES')
5429						{
5430	0				0	set_global_option ('silent-rules', $where);
5431						}
5432						elsif ($macro eq '_AM_COND_IF')
5433						{
5434	0				0	cond_stack_if ('', $args[1], $where);
5435	0	0			0	error ($where, "missing m4 quoting, macro depth $depth")
5436						if ($depth != 1);
5437						}
5438						elsif ($macro eq '_AM_COND_ELSE')
5439						{
5440	0				0	cond_stack_else ('!', $args[1], $where);
5441	0	0			0	error ($where, "missing m4 quoting, macro depth $depth")
5442						if ($depth != 1);
5443						}
5444						elsif ($macro eq '_AM_COND_ENDIF')
5445						{
5446	0				0	cond_stack_endif (undef, undef, $where);
5447	0	0			0	error ($where, "missing m4 quoting, macro depth $depth")
5448						if ($depth != 1);
5449						}
5450						elsif ($macro eq '_AM_SUBST_NOTMAKE')
5451						{
5452	0				0	$ignored_configure_vars{$args[1]} = $where;
5453						}
5454						elsif ($macro eq 'm4_include'
5455						\|\| $macro eq 'm4_sinclude'
5456						\|\| $macro eq 'sinclude')
5457						{
5458						# Skip missing `sinclude'd files.
5459	0	0	0		0	next if $macro ne 'm4_include' && ! -f $args[1];
5460
5461						# Some modified versions of Autoconf don't use
5462						# frozen files. Consequently it's possible that we see all
5463						# m4_include's performed during Autoconf's startup.
5464						# Obviously we don't want to distribute Autoconf's files
5465						# so we skip absolute filenames here.
5466	0	0			0	push @configure_deps, '$(top_srcdir)/' . $args[1]
5467						unless $here =~ m,^(?:\w:)?[\\/],;
5468						# Keep track of the greatest timestamp.
5469	0	0			0	if (-e $args[1])
5470						{
5471	0				0	my $mtime = mtime $args[1];
5472	0	0			0	$configure_deps_greatest_timestamp = $mtime
5473						if $mtime > $configure_deps_greatest_timestamp;
5474						}
5475						}
5476						elsif ($macro eq 'LT_SUPPORTED_TAG')
5477						{
5478	0				0	$libtool_tags{$args[1]} = 1;
5479	0				0	$libtool_new_api = 1;
5480						}
5481						elsif ($macro eq '_LT_AC_TAGCONFIG')
5482						{
5483						# _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5484						# We use it to detect whether tags are supported. Our
5485						# preferred interface is LT_SUPPORTED_TAG, but it was
5486						# introduced in Libtool 1.6.
5487	0	0			0	if (0 == keys %libtool_tags)
5488						{
5489						# Hardcode the tags supported by Libtool 1.5.
5490	0				0	%libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5491						}
5492						}
5493						}
5494
5495	0	0			0	error ($where, "condition stack not properly closed")
5496						if (@cond_stack);
5497
5498	0				0	$tracefh->close;
5499						}
5500
5501
5502						# &scan_autoconf_files ()
5503						# -----------------------
5504						# Check whether we use `configure.ac' or `configure.in'.
5505						# Scan it (and possibly `aclocal.m4') for interesting things.
5506						# We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5507						sub scan_autoconf_files ()
5508						{
5509						# Reinitialize libsources here. This isn't really necessary,
5510						# since we currently assume there is only one configure.ac. But
5511						# that won't always be the case.
5512	0			0	0	%libsources = ();
5513
5514						# Keep track of the youngest configure dependency.
5515	0				0	$configure_deps_greatest_timestamp = mtime $configure_ac;
5516	0	0			0	if (-e 'aclocal.m4')
5517						{
5518	0				0	my $mtime = mtime 'aclocal.m4';
5519	0	0			0	$configure_deps_greatest_timestamp = $mtime
5520						if $mtime > $configure_deps_greatest_timestamp;
5521						}
5522
5523	0				0	scan_autoconf_traces ($configure_ac);
5524
5525	0				0	@configure_input_files = sort keys %make_list;
5526						# Set input and output files if not specified by user.
5527	0	0			0	if (! @input_files)
5528						{
5529	0				0	@input_files = @configure_input_files;
5530	0				0	%output_files = %make_list;
5531						}
5532
5533
5534	0	0			0	if (! $seen_init_automake)
5535						{
5536	0				0	err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5537						. "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5538						. "\nthat aclocal.m4 is present in the top-level directory,\n"
5539						. "and that aclocal.m4 was recently regenerated "
5540						. "(using aclocal).");
5541						}
5542						else
5543						{
5544	0	0			0	if (! $seen_automake_version)
5545						{
5546	0	0			0	if (-f 'aclocal.m4')
5547						{
5548	0				0	error ($seen_init_automake,
5549						"your implementation of AM_INIT_AUTOMAKE comes from " .
5550						"an\nold Automake version. You should recreate " .
5551						"aclocal.m4\nwith aclocal and run automake again.\n",
5552						# $? = 63 is used to indicate version mismatch to missing.
5553						exit_code => 63);
5554						}
5555						else
5556						{
5557	0				0	error ($seen_init_automake,
5558						"no proper implementation of AM_INIT_AUTOMAKE was " .
5559						"found,\nprobably because aclocal.m4 is missing...\n" .
5560						"You should run aclocal to create this file, then\n" .
5561						"run automake again.\n");
5562						}
5563						}
5564						}
5565
5566	0				0	locate_aux_dir ();
5567
5568						# Reorder @input_files so that the Makefile that distributes aux
5569						# files is processed last. This is important because each directory
5570						# can require auxiliary scripts and we should wait until they have
5571						# been installed before distributing them.
5572
5573						# The Makefile.in that distribute the aux files is the one in
5574						# $config_aux_dir or the top-level Makefile.
5575	0	0			0	my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5576	0				0	my @new_input_files = ();
5577	0				0	while (@input_files)
5578						{
5579	0				0	my $in = pop @input_files;
5580	0				0	my @ins = split (/:/, $output_files{$in});
5581	0	0			0	if (dirname ($ins[0]) eq $auxdirdist)
5582						{
5583	0				0	push @new_input_files, $in;
5584	0				0	$automake_will_process_aux_dir = 1;
5585						}
5586						else
5587						{
5588	0				0	unshift @new_input_files, $in;
5589						}
5590						}
5591	0				0	@input_files = @new_input_files;
5592
5593						# If neither the auxdir/Makefile nor the ./Makefile are generated
5594						# by Automake, we won't distribute the aux files anyway. Assume
5595						# the user know what (s)he does, and pretend we will distribute
5596						# them to disable the error in require_file_internal.
5597	0	0			0	$automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5598
5599						# Look for some files we need. Always check for these. This
5600						# check must be done for every run, even those where we are only
5601						# looking at a subdir Makefile. We must set relative_dir for
5602						# maybe_push_required_file to work.
5603						# Sort the files for stable verbose output.
5604	0				0	$relative_dir = '.';
5605	0				0	foreach my $file (sort keys %required_aux_file)
5606						{
5607	0				0	require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5608						}
5609	0	0			0	err_am "`install.sh' is an anachronism; use `install-sh' instead"
5610						if -f $config_aux_dir . '/install.sh';
5611
5612						# Preserve dist_common for later.
5613	0		0		0	$configure_dist_common = variable_value ('DIST_COMMON') \|\| '';
5614
5615						}
5616
5617						################################################################
5618
5619						# Set up for Cygnus mode.
5620						sub check_cygnus
5621						{
5622	0			0	0	my $cygnus = option 'cygnus';
5623	0	0			0	return unless $cygnus;
5624
5625	0				0	set_strictness ('foreign');
5626	0				0	set_option ('no-installinfo', $cygnus);
5627	0				0	set_option ('no-dependencies', $cygnus);
5628	0				0	set_option ('no-dist', $cygnus);
5629
5630	0	0			0	err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5631						if !$seen_maint_mode;
5632						}
5633
5634						# Do any extra checking for GNU standards.
5635						sub check_gnu_standards
5636						{
5637	0	0		0	0	if ($relative_dir eq '.')
5638						{
5639						# In top level (or only) directory.
5640	0				0	require_file ("$am_file.am", GNU,
5641						qw/INSTALL NEWS README AUTHORS ChangeLog/);
5642
5643						# Accept one of these three licenses; default to COPYING.
5644						# Make sure we do not overwrite an existing license.
5645	0				0	my $license;
5646	0				0	foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5647						{
5648	0	0			0	if (-f $_)
5649						{
5650	0				0	$license = $_;
5651	0				0	last;
5652						}
5653						}
5654	0	0			0	require_file ("$am_file.am", GNU, 'COPYING')
5655						unless $license;
5656						}
5657
5658	0				0	for my $opt ('no-installman', 'no-installinfo')
5659						{
5660	0	0			0	msg ('error-gnu', option $opt,
5661						"option `$opt' disallowed by GNU standards")
5662						if option $opt;
5663						}
5664						}
5665
5666						# Do any extra checking for GNITS standards.
5667						sub check_gnits_standards
5668						{
5669	0	0		0	0	if ($relative_dir eq '.')
5670						{
5671						# In top level (or only) directory.
5672	0				0	require_file ("$am_file.am", GNITS, 'THANKS');
5673						}
5674						}
5675
5676						################################################################
5677						#
5678						# Functions to handle files of each language.
5679
5680						# Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5681						# simple formula: Return value is LANG_SUBDIR if the resulting object
5682						# file should be in a subdir if the source file is, LANG_PROCESS if
5683						# file is to be dealt with, LANG_IGNORE otherwise.
5684
5685						# Much of the actual processing is handled in
5686						# handle_single_transform. These functions exist so that
5687						# auxiliary information can be recorded for a later cleanup pass.
5688						# Note that the calls to these functions are computed, so don't bother
5689						# searching for their precise names in the source.
5690
5691						# This is just a convenience function that can be used to determine
5692						# when a subdir object should be used.
5693						sub lang_sub_obj
5694						{
5695	0	0		0	0	return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5696						}
5697
5698						# Rewrite a single C source file.
5699						sub lang_c_rewrite
5700						{
5701	0			0	0	my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5702
5703	0	0	0		0	if (option 'ansi2knr' && $base =~ /_$/)
5704						{
5705						# FIXME: include line number in error.
5706	0				0	err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5707						}
5708
5709	0				0	my $r = LANG_PROCESS;
5710	0	0			0	if (option 'subdir-objects')
5711						{
5712	0				0	$r = LANG_SUBDIR;
5713	0	0	0		0	if ($directory && $directory ne '.')
5714						{
5715	0				0	$base = $directory . '/' . $base;
5716
5717						# libtool is always able to put the object at the proper place,
5718						# so we do not have to require AM_PROG_CC_C_O when building .lo files.
5719	0	0	0		0	msg_var ('portability', $var,
5720						"compiling `$base.c' in subdir requires "
5721						. "`AM_PROG_CC_C_O' in `$configure_ac'",
5722						uniq_scope => US_GLOBAL,
5723						uniq_part => 'AM_PROG_CC_C_O subdir')
5724						unless $seen_cc_c_o \|\| $nonansi_obj eq '.lo';
5725						}
5726
5727						# In this case we already have the directory information, so
5728						# don't add it again.
5729	0				0	$de_ansi_files{$base} = '';
5730						}
5731						else
5732						{
5733	0	0	0		0	$de_ansi_files{$base} = (($directory eq '.' \|\| $directory eq '')
5734						? ''
5735						: "$directory/");
5736						}
5737
5738	0	0	0		0	if (! $seen_cc_c_o
5739						&& $have_per_exec_flags
5740						&& ! option 'subdir-objects'
5741						&& $nonansi_obj ne '.lo')
5742						{
5743	0				0	msg_var ('portability',
5744						$var, "compiling `$base.c' with per-target flags requires "
5745						. "`AM_PROG_CC_C_O' in `$configure_ac'",
5746						uniq_scope => US_GLOBAL,
5747						uniq_part => 'AM_PROG_CC_C_O per-target')
5748						}
5749
5750	0				0	return $r;
5751						}
5752
5753						# Rewrite a single C++ source file.
5754						sub lang_cxx_rewrite
5755						{
5756	0			0	0	return &lang_sub_obj;
5757						}
5758
5759						# Rewrite a single header file.
5760						sub lang_header_rewrite
5761						{
5762						# Header files are simply ignored.
5763	0			0	0	return LANG_IGNORE;
5764						}
5765
5766						# Rewrite a single Vala source file.
5767						sub lang_vala_rewrite
5768						{
5769	0			0	0	my ($directory, $base, $ext) = @_;
5770
5771	0				0	(my $newext = $ext) =~ s/vala$/c/;
5772	0				0	return (LANG_SUBDIR, $newext);
5773						}
5774
5775						# Rewrite a single yacc file.
5776						sub lang_yacc_rewrite
5777						{
5778	0			0	0	my ($directory, $base, $ext) = @_;
5779
5780	0				0	my $r = &lang_sub_obj;
5781	0				0	(my $newext = $ext) =~ tr/y/c/;
5782	0				0	return ($r, $newext);
5783						}
5784
5785						# Rewrite a single yacc++ file.
5786						sub lang_yaccxx_rewrite
5787						{
5788	0			0	0	my ($directory, $base, $ext) = @_;
5789
5790	0				0	my $r = &lang_sub_obj;
5791	0				0	(my $newext = $ext) =~ tr/y/c/;
5792	0				0	return ($r, $newext);
5793						}
5794
5795						# Rewrite a single lex file.
5796						sub lang_lex_rewrite
5797						{
5798	0			0	0	my ($directory, $base, $ext) = @_;
5799
5800	0				0	my $r = &lang_sub_obj;
5801	0				0	(my $newext = $ext) =~ tr/l/c/;
5802	0				0	return ($r, $newext);
5803						}
5804
5805						# Rewrite a single lex++ file.
5806						sub lang_lexxx_rewrite
5807						{
5808	0			0	0	my ($directory, $base, $ext) = @_;
5809
5810	0				0	my $r = &lang_sub_obj;
5811	0				0	(my $newext = $ext) =~ tr/l/c/;
5812	0				0	return ($r, $newext);
5813						}
5814
5815						# Rewrite a single assembly file.
5816						sub lang_asm_rewrite
5817						{
5818	0			0	0	return &lang_sub_obj;
5819						}
5820
5821						# Rewrite a single preprocessed assembly file.
5822						sub lang_cppasm_rewrite
5823						{
5824	0			0	0	return &lang_sub_obj;
5825						}
5826
5827						# Rewrite a single Fortran 77 file.
5828						sub lang_f77_rewrite
5829						{
5830	0			0	0	return &lang_sub_obj;
5831						}
5832
5833						# Rewrite a single Fortran file.
5834						sub lang_fc_rewrite
5835						{
5836	0			0	0	return &lang_sub_obj;
5837						}
5838
5839						# Rewrite a single preprocessed Fortran file.
5840						sub lang_ppfc_rewrite
5841						{
5842	0			0	0	return &lang_sub_obj;
5843						}
5844
5845						# Rewrite a single preprocessed Fortran 77 file.
5846						sub lang_ppf77_rewrite
5847						{
5848	0			0	0	return &lang_sub_obj;
5849						}
5850
5851						# Rewrite a single ratfor file.
5852						sub lang_ratfor_rewrite
5853						{
5854	0			0	0	return &lang_sub_obj;
5855						}
5856
5857						# Rewrite a single Objective C file.
5858						sub lang_objc_rewrite
5859						{
5860	0			0	0	return &lang_sub_obj;
5861						}
5862
5863						# Rewrite a single Unified Parallel C file.
5864						sub lang_upc_rewrite
5865						{
5866	0			0	0	return &lang_sub_obj;
5867						}
5868
5869						# Rewrite a single Java file.
5870						sub lang_java_rewrite
5871						{
5872	0			0	0	return LANG_SUBDIR;
5873						}
5874
5875						# The lang_X_finish functions are called after all source file
5876						# processing is done. Each should handle defining rules for the
5877						# language, etc. A finish function is only called if a source file of
5878						# the appropriate type has been seen.
5879
5880						sub lang_c_finish
5881						{
5882						# Push all libobjs files onto de_ansi_files. We actually only
5883						# push files which exist in the current directory, and which are
5884						# genuine source files.
5885	0			0	0	foreach my $file (keys %libsources)
5886						{
5887	0	0	0		0	if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5888						{
5889	0				0	$de_ansi_files{$1} = ''
5890						}
5891						}
5892
5893	0	0	0		0	if (option 'ansi2knr' && keys %de_ansi_files)
5894						{
5895						# Make all _.c files depend on their corresponding .c files.
5896	0				0	my @objects;
5897	0				0	foreach my $base (sort keys %de_ansi_files)
5898						{
5899						# Each _.c file must depend on ansi2knr; otherwise it
5900						# might be used in a parallel build before it is built.
5901						# We need to support files in the srcdir and in the build
5902						# dir (because these files might be auto-generated. But
5903						# we can't use $< -- some makes only define $< during a
5904						# suffix rule.
5905	0				0	my $ansfile = $de_ansi_files{$base} . $base . '.c';
5906	0				0	$output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5907						. '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5908						. '`if test -f $(srcdir)/' . $ansfile
5909						. '; then echo $(srcdir)/' . $ansfile
5910						. '; else echo ' . $ansfile . '; fi` '
5911						. "\| sed 's/^# \$[0-9]\$/#line \\1/' "
5912						. '\| $(ANSI2KNR) > $@'
5913						# If ansi2knr fails then we shouldn't
5914						# create the _.c file
5915						. " \|\| rm -f \$\@\n");
5916	0				0	push (@objects, $base . '_.$(OBJEXT)');
5917	0	0			0	push (@objects, $base . '_.lo')
5918						if var ('LIBTOOL');
5919
5920						# Explicitly clean the _.c files if they are in a
5921						# subdirectory. (In the current directory they get erased
5922						# by a `rm -f *_.c' rule.)
5923	0	0			0	$clean_files{$base . '_.c'} = MOSTLY_CLEAN
5924						if dirname ($base) ne '.';
5925						}
5926
5927						# Make all _.o (and _.lo) files depend on ansi2knr.
5928						# Use a sneaky little hack to make it print nicely.
5929	0				0	&pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5930						}
5931						}
5932
5933						sub lang_vala_finish_target ($$)
5934						{
5935	0			0	0	my ($self, $name) = @_;
5936
5937	0				0	my $derived = canonicalize ($name);
5938	0				0	my $varname = $derived . '_SOURCES';
5939	0				0	my $var = var ($varname);
5940
5941	0	0			0	if ($var)
5942						{
5943	0				0	foreach my $file ($var->value_as_list_recursive)
5944						{
5945	0	0			0	$output_rules .= "\$(srcdir)/$file: \$(srcdir)/${derived}_vala.stamp\n".
5946						"\t\@if test -f \$@; then :; else \\\n".
5947						"\t rm -f \$(srcdir)/${derived}_vala.stamp; \\\n".
5948						"\t \$(am__cd) \$(srcdir) && \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n".
5949						"\tfi\n"
5950						if $file =~ s/(.*)\.vala$/$1.c/;
5951						}
5952						}
5953
5954						# Add rebuild rules for generated header and vapi files
5955	0				0	my $flags = var ($derived . '_VALAFLAGS');
5956	0	0			0	if ($flags)
5957						{
5958	0				0	my $lastflag = '';
5959	0				0	foreach my $flag ($flags->value_as_list_recursive)
5960						{
5961	0	0			0	if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5962						'--vapi', '--internal-vapi', '--gir')))
5963						{
5964	0				0	my $headerfile = $flag;
5965	0				0	$output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n".
5966						"\t\@if test -f \$@; then :; else \\\n".
5967						"\t rm -f \$(srcdir)/${derived}_vala.stamp; \\\n".
5968						"\t \$(am__cd) \$(srcdir) && \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n".
5969						"\tfi\n";
5970
5971						# valac is not used when building from dist tarballs
5972						# distribute the generated files
5973	0				0	push_dist_common ($headerfile);
5974	0				0	$clean_files{$headerfile} = MAINTAINER_CLEAN;
5975						}
5976	0				0	$lastflag = $flag;
5977						}
5978						}
5979
5980	0				0	my $compile = $self->compile;
5981
5982						# Rewrite each occurrence of `AM_VALAFLAGS' in the compile
5983						# rule into `${derived}_VALAFLAGS' if it exists.
5984	0				0	my $val = "${derived}_VALAFLAGS";
5985	0	0			0	$compile =~ s/$AM_VALAFLAGS$/$$val$/
5986						if set_seen ($val);
5987
5988						# VALAFLAGS is a user variable (per GNU Standards),
5989						# it should not be overridden in the Makefile...
5990	0				0	check_user_variables ['VALAFLAGS'];
5991
5992	0				0	my $dirname = dirname ($name);
5993
5994						# Only generate C code, do not run C compiler
5995	0				0	$compile .= " -C";
5996
5997	0				0	my $verbose = verbose_flag ('VALAC');
5998	0				0	my $silent = silent_flag ();
5999
6000	0				0	$output_rules .=
6001						"${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
6002						"\t${verbose}${compile} \$(${derived}_SOURCES)\n".
6003						"\t${silent}touch \$@\n";
6004
6005	0				0	push_dist_common ("${derived}_vala.stamp");
6006
6007	0				0	$clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
6008						}
6009
6010						# Add output rules to invoke valac and create stamp file as a witness
6011						# to handle multiple outputs. This function is called after all source
6012						# file processing is done.
6013						sub lang_vala_finish
6014						{
6015	0			0	0	my ($self) = @_;
6016
6017	0				0	foreach my $prog (keys %known_programs)
6018						{
6019	0				0	lang_vala_finish_target ($self, $prog);
6020						}
6021
6022	0				0	while (my ($name) = each %known_libraries)
6023						{
6024	0				0	lang_vala_finish_target ($self, $name);
6025						}
6026						}
6027
6028						# The built .c files should be cleaned only on maintainer-clean
6029						# as the .c files are distributed. This function is called for each
6030						# .vala source file.
6031						sub lang_vala_target_hook
6032						{
6033	0			0	0	my ($self, $aggregate, $output, $input, %transform) = @_;
6034
6035	0				0	$clean_files{$output} = MAINTAINER_CLEAN;
6036						}
6037
6038						# This is a yacc helper which is called whenever we have decided to
6039						# compile a yacc file.
6040						sub lang_yacc_target_hook
6041						{
6042	0			0	0	my ($self, $aggregate, $output, $input, %transform) = @_;
6043
6044	0				0	my $flag = $aggregate . "_YFLAGS";
6045	0				0	my $flagvar = var $flag;
6046	0				0	my $YFLAGSvar = var 'YFLAGS';
6047	0	0	0		0	if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6048						\|\| ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6049						{
6050	0				0	(my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6051	0				0	my $header = $output_base . '.h';
6052
6053						# Found a `-d' that applies to the compilation of this file.
6054						# Add a dependency for the generated header file, and arrange
6055						# for that file to be included in the distribution.
6056	0				0	foreach my $cond (Automake::Rule::define (${header}, 'internal',
6057						RULE_AUTOMAKE, TRUE,
6058						INTERNAL))
6059						{
6060	0				0	my $condstr = $cond->subst_string;
6061	0				0	$output_rules .=
6062						"$condstr${header}: $output\n"
6063						# Recover from removal of $header
6064						. "$condstr\t\@if test ! -f \$@; then \\\n"
6065						. "$condstr\t rm -f $output; \\\n"
6066						. "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
6067						. "$condstr\telse :; fi\n";
6068						}
6069						# Distribute the generated file, unless its .y source was
6070						# listed in a nodist_ variable. (&handle_source_transform
6071						# will set DIST_SOURCE.)
6072	0	0			0	&push_dist_common ($header)
6073						if $transform{'DIST_SOURCE'};
6074
6075						# If the files are built in the build directory, then we want
6076						# to remove them with `make clean'. If they are in srcdir
6077						# they shouldn't be touched. However, we can't determine this
6078						# statically, and the GNU rules say that yacc/lex output files
6079						# should be removed by maintainer-clean. So that's what we
6080						# do.
6081	0				0	$clean_files{$header} = MAINTAINER_CLEAN;
6082						}
6083						# Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6084						# See the comment above for $HEADER.
6085	0				0	$clean_files{$output} = MAINTAINER_CLEAN;
6086						}
6087
6088						# This is a lex helper which is called whenever we have decided to
6089						# compile a lex file.
6090						sub lang_lex_target_hook
6091						{
6092	0			0	0	my ($self, $aggregate, $output, $input) = @_;
6093						# If the files are built in the build directory, then we want to
6094						# remove them with `make clean'. If they are in srcdir they
6095						# shouldn't be touched. However, we can't determine this
6096						# statically, and the GNU rules say that yacc/lex output files
6097						# should be removed by maintainer-clean. So that's what we do.
6098	0				0	$clean_files{$output} = MAINTAINER_CLEAN;
6099						}
6100
6101						# This is a helper for both lex and yacc.
6102						sub yacc_lex_finish_helper
6103						{
6104	0	0		0	0	return if defined $language_scratch{'lex-yacc-done'};
6105	0				0	$language_scratch{'lex-yacc-done'} = 1;
6106
6107						# FIXME: for now, no line number.
6108	0				0	require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6109	0				0	&define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6110						}
6111
6112						sub lang_yacc_finish
6113						{
6114	0	0		0	0	return if defined $language_scratch{'yacc-done'};
6115	0				0	$language_scratch{'yacc-done'} = 1;
6116
6117	0				0	reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6118
6119	0				0	yacc_lex_finish_helper;
6120						}
6121
6122
6123						sub lang_lex_finish
6124						{
6125	0	0		0	0	return if defined $language_scratch{'lex-done'};
6126	0				0	$language_scratch{'lex-done'} = 1;
6127
6128	0				0	yacc_lex_finish_helper;
6129						}
6130
6131
6132						# Given a hash table of linker names, pick the name that has the most
6133						# precedence. This is lame, but something has to have global
6134						# knowledge in order to eliminate the conflict. Add more linkers as
6135						# required.
6136						sub resolve_linker
6137						{
6138	0			0	0	my (%linkers) = @_;
6139
6140	0				0	foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6141						{
6142	0	0			0	return $l if defined $linkers{$l};
6143						}
6144	0				0	return 'LINK';
6145						}
6146
6147						# Called to indicate that an extension was used.
6148						sub saw_extension
6149						{
6150	0			0	0	my ($ext) = @_;
6151	0	0			0	if (! defined $extension_seen{$ext})
6152						{
6153	0				0	$extension_seen{$ext} = 1;
6154						}
6155						else
6156						{
6157	0				0	++$extension_seen{$ext};
6158						}
6159						}
6160
6161						# Return the number of files seen for a given language. Knows about
6162						# special cases we care about. FIXME: this is hideous. We need
6163						# something that involves real language objects. For instance yacc
6164						# and yaccxx could both derive from a common yacc class which would
6165						# know about the strange ylwrap requirement. (Or better yet we could
6166						# just not support legacy yacc!)
6167						sub count_files_for_language
6168						{
6169	0			0	0	my ($name) = @_;
6170
6171	0				0	my @names;
6172	0	0 0	0 0		0	if ($name eq 'yacc' \|\| $name eq 'yaccxx')
6173						{
6174	0				0	@names = ('yacc', 'yaccxx');
6175						}
6176						elsif ($name eq 'lex' \|\| $name eq 'lexxx')
6177						{
6178	0				0	@names = ('lex', 'lexxx');
6179						}
6180						else
6181						{
6182	0				0	@names = ($name);
6183						}
6184
6185	0				0	my $r = 0;
6186	0				0	foreach $name (@names)
6187						{
6188	0				0	my $lang = $languages{$name};
6189	0 0				0 0	foreach my $ext (@{$lang->extensions})
6190						{
6191	0	0			0	$r += $extension_seen{$ext}
6192						if defined $extension_seen{$ext};
6193						}
6194						}
6195
6196	0				0	return $r
6197						}
6198
6199						# Called to ask whether source files have been seen . If HEADERS is 1,
6200						# headers can be included.
6201						sub saw_sources_p
6202						{
6203	0			0	0	my ($headers) = @_;
6204
6205						# count all the sources
6206	0				0	my $count = 0;
6207	0				0	foreach my $val (values %extension_seen)
6208						{
6209	0				0	$count += $val;
6210						}
6211
6212	0	0			0	if (!$headers)
6213						{
6214	0				0	$count -= count_files_for_language ('header');
6215						}
6216
6217	0				0	return $count > 0;
6218						}
6219
6220
6221						# register_language (%ATTRIBUTE)
6222						# ------------------------------
6223						# Register a single language.
6224						# Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6225						sub register_language (%)
6226						{
6227	18			18	94	my (%option) = @_;
6228
6229						# Set the defaults.
6230	18	100			51	$option{'ansi'} = 0
6231						unless defined $option{'ansi'};
6232	18	100			44	$option{'autodep'} = 'no'
6233						unless defined $option{'autodep'};
6234	18	100			40	$option{'linker'} = ''
6235						unless defined $option{'linker'};
6236	18	100			33	$option{'flags'} = []
6237						unless defined $option{'flags'};
6238	27			27	53	$option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6239	18	100			68	unless defined $option{'output_extensions'};
6240	18	100			48	$option{'nodist_specific'} = 0
6241						unless defined $option{'nodist_specific'};
6242
6243	18				83	my $lang = new Language (%option);
6244
6245						# Fill indexes.
6246	18 18 18				29 19 41	$extension_map{$_} = $lang->name foreach @{$lang->extensions};
6247	18				44	$languages{$lang->name} = $lang;
6248	18				40	my $link = $lang->linker;
6249	18	100			29	if ($link)
6250						{
6251	10	100			21	if (exists $link_languages{$link})
6252						{
6253	3	50			7	prog_error ("`$link' has different definitions in "
6254						. $lang->name . " and " . $link_languages{$link}->name)
6255						if $lang->link ne $link_languages{$link}->link;
6256						}
6257						else
6258						{
6259	7				14	$link_languages{$link} = $lang;
6260						}
6261						}
6262
6263						# Update the pattern of known extensions.
6264	18 18				16 38	accept_extensions (@{$lang->extensions});
6265
6266						# Upate the $suffix_rule map.
6267	18 18				41 35	foreach my $suffix (@{$lang->extensions})
6268						{
6269	45 45				48 93	foreach my $dest (&{$lang->output_extensions} ($suffix))
6270						{
6271	65				137	register_suffix_rule (INTERNAL, $suffix, $dest);
6272						}
6273						}
6274						}
6275
6276						# derive_suffix ($EXT, $OBJ)
6277						# --------------------------
6278						# This function is used to find a path from a user-specified suffix $EXT
6279						# to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6280						sub derive_suffix ($$)
6281						{
6282	0			0	0	my ($source_ext, $obj) = @_;
6283
6284	0		0		0	while (! $extension_map{$source_ext}
6285						&& $source_ext ne $obj
6286						&& exists $suffix_rules->{$source_ext}
6287						&& exists $suffix_rules->{$source_ext}{$obj})
6288						{
6289	0				0	$source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6290						}
6291
6292	0				0	return $source_ext;
6293						}
6294
6295
6296						################################################################
6297
6298						# Pretty-print something and append to output_rules.
6299						sub pretty_print_rule
6300						{
6301	0			0	0	$output_rules .= &makefile_wrap (@_);
6302						}
6303
6304
6305						################################################################
6306
6307
6308						## -------------------------------- ##
6309						## Handling the conditional stack. ##
6310						## -------------------------------- ##
6311
6312
6313						# $STRING
6314						# make_conditional_string ($NEGATE, $COND)
6315						# ----------------------------------------
6316						sub make_conditional_string ($$)
6317						{
6318	0			0	0	my ($negate, $cond) = @_;
6319	0	0			0	$cond = "${cond}_TRUE"
6320						unless $cond =~ /^TRUE\|FALSE$/;
6321	0	0			0	$cond = Automake::Condition::conditional_negate ($cond)
6322						if $negate;
6323	0				0	return $cond;
6324						}
6325
6326
6327	1				9	my %_am_macro_for_cond =
6328						(
6329						AMDEP => "one of the compiler tests\n"
6330						. " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6331						. " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6332						am__fastdepCC => 'AC_PROG_CC',
6333						am__fastdepCCAS => 'AM_PROG_AS',
6334						am__fastdepCXX => 'AC_PROG_CXX',
6335						am__fastdepGCJ => 'AM_PROG_GCJ',
6336						am__fastdepOBJC => 'AC_PROG_OBJC',
6337						am__fastdepUPC => 'AM_PROG_UPC'
6338						);
6339
6340						# $COND
6341						# cond_stack_if ($NEGATE, $COND, $WHERE)
6342						# --------------------------------------
6343						sub cond_stack_if ($$$)
6344						{
6345	0			0	0	my ($negate, $cond, $where) = @_;
6346
6347	0	0	0		0	if (! $configure_cond{$cond} && $cond !~ /^TRUE\|FALSE$/)
6348						{
6349	0				0	my $text = "$cond does not appear in AM_CONDITIONAL";
6350	0				0	my $scope = US_LOCAL;
6351	0	0			0	if (exists $_am_macro_for_cond{$cond})
6352						{
6353	0				0	my $mac = $_am_macro_for_cond{$cond};
6354	0				0	$text .= "\n The usual way to define `$cond' is to add ";
6355	0	0			0	$text .= ($mac =~ / /) ? $mac : "`$mac'";
6356	0				0	$text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6357						# These warnings appear in Automake files (depend2.am),
6358						# so there is no need to display them more than once:
6359	0				0	$scope = US_GLOBAL;
6360						}
6361	0				0	error $where, $text, uniq_scope => $scope;
6362						}
6363
6364	0				0	push (@cond_stack, make_conditional_string ($negate, $cond));
6365
6366	0				0	return new Automake::Condition (@cond_stack);
6367						}
6368
6369
6370						# $COND
6371						# cond_stack_else ($NEGATE, $COND, $WHERE)
6372						# ----------------------------------------
6373						sub cond_stack_else ($$$)
6374						{
6375	0			0	0	my ($negate, $cond, $where) = @_;
6376
6377	0	0			0	if (! @cond_stack)
6378						{
6379	0				0	error $where, "else without if";
6380	0				0	return FALSE;
6381						}
6382
6383	0				0	$cond_stack[$#cond_stack] =
6384						Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6385
6386						# If $COND is given, check against it.
6387	0	0			0	if (defined $cond)
6388						{
6389	0				0	$cond = make_conditional_string ($negate, $cond);
6390
6391	0	0			0	error ($where, "else reminder ($negate$cond) incompatible with "
6392						. "current conditional: $cond_stack[$#cond_stack]")
6393						if $cond_stack[$#cond_stack] ne $cond;
6394						}
6395
6396	0				0	return new Automake::Condition (@cond_stack);
6397						}
6398
6399
6400						# $COND
6401						# cond_stack_endif ($NEGATE, $COND, $WHERE)
6402						# -----------------------------------------
6403						sub cond_stack_endif ($$$)
6404						{
6405	0			0	0	my ($negate, $cond, $where) = @_;
6406	0				0	my $old_cond;
6407
6408	0	0			0	if (! @cond_stack)
6409						{
6410	0				0	error $where, "endif without if";
6411	0				0	return TRUE;
6412						}
6413
6414						# If $COND is given, check against it.
6415	0	0			0	if (defined $cond)
6416						{
6417	0				0	$cond = make_conditional_string ($negate, $cond);
6418
6419	0	0			0	error ($where, "endif reminder ($negate$cond) incompatible with "
6420						. "current conditional: $cond_stack[$#cond_stack]")
6421						if $cond_stack[$#cond_stack] ne $cond;
6422						}
6423
6424	0				0	pop @cond_stack;
6425
6426	0				0	return new Automake::Condition (@cond_stack);
6427						}
6428
6429
6430
6431
6432
6433						## ------------------------ ##
6434						## Handling the variables. ##
6435						## ------------------------ ##
6436
6437
6438						# &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6439						# -----------------------------------------------------
6440						# Like define_variable, but the value is a list, and the variable may
6441						# be defined conditionally. The second argument is the condition
6442						# under which the value should be defined; this should be the empty
6443						# string to define the variable unconditionally. The third argument
6444						# is a list holding the values to use for the variable. The value is
6445						# pretty printed in the output file.
6446						sub define_pretty_variable ($$$@)
6447						{
6448	0			0	0	my ($var, $cond, $where, @value) = @_;
6449
6450	0	0			0	if (! vardef ($var, $cond))
6451						{
6452	0				0	Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6453						'', $where, VAR_PRETTY);
6454	0				0	rvar ($var)->rdef ($cond)->set_seen;
6455						}
6456						}
6457
6458
6459						# define_variable ($VAR, $VALUE, $WHERE)
6460						# --------------------------------------
6461						# Define a new Automake Makefile variable VAR to VALUE, but only if
6462						# not already defined.
6463						sub define_variable ($$$)
6464						{
6465	0			0	0	my ($var, $value, $where) = @_;
6466	0				0	define_pretty_variable ($var, TRUE, $where, $value);
6467						}
6468
6469
6470						# define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6471						# -----------------------------------------------------------
6472						# Define the $VAR which content is the list of file names composed of
6473						# a @BASENAME and the $EXTENSION.
6474						sub define_files_variable ($\@$$)
6475						{
6476	0			0	0	my ($var, $basename, $extension, $where) = @_;
6477	0				0	define_variable ($var,
6478	0				0	join (' ', map { "$_.$extension" } @$basename),
6479						$where);
6480						}
6481
6482
6483						# Like define_variable, but define a variable to be the configure
6484						# substitution by the same name.
6485						sub define_configure_variable ($)
6486						{
6487	0			0	0	my ($var) = @_;
6488
6489	0				0	my $pretty = VAR_ASIS;
6490	0				0	my $owner = VAR_CONFIGURE;
6491
6492						# Some variables we do not want to output. For instance it
6493						# would be a bad idea to output `U = @U@` when `@U@` can be
6494						# substituted as `\`.
6495	0	0			0	$pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6496
6497						# ANSI2KNR is a variable that Automake wants to redefine, so
6498						# it must be owned by Automake. (It is also used as a proof
6499						# that AM_C_PROTOTYPES has been run, that's why we do not simply
6500						# omit the AC_SUBST.)
6501	0	0			0	$owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6502
6503	0				0	Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6504						'', $configure_vars{$var}, $pretty);
6505						}
6506
6507
6508						# define_compiler_variable ($LANG)
6509						# --------------------------------
6510						# Define a compiler variable. We also handle defining the `LT'
6511						# version of the command when using libtool.
6512						sub define_compiler_variable ($)
6513						{
6514	0			0	0	my ($lang) = @_;
6515
6516	0				0	my ($var, $value) = ($lang->compiler, $lang->compile);
6517	0				0	my $libtool_tag = '';
6518	0	0	0		0	$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6519						if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6520	0				0	&define_variable ($var, $value, INTERNAL);
6521	0	0			0	if (var ('LIBTOOL'))
6522						{
6523	0				0	my $verbose = define_verbose_libtool ();
6524	0				0	&define_variable ("LT$var",
6525						"\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6526						. "\$(LIBTOOLFLAGS) --mode=compile $value",
6527						INTERNAL);
6528						}
6529	0		0		0	define_verbose_tagvar ($lang->ccer \|\| 'GEN');
6530						}
6531
6532
6533						# define_linker_variable ($LANG)
6534						# ------------------------------
6535						# Define linker variables.
6536						sub define_linker_variable ($)
6537						{
6538	0			0	0	my ($lang) = @_;
6539
6540	0				0	my $libtool_tag = '';
6541	0	0	0		0	$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6542						if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6543						# CCLD = $(CC).
6544	0				0	&define_variable ($lang->lder, $lang->ld, INTERNAL);
6545						# CCLINK = $(CCLD) blah blah...
6546	0				0	my $link = '';
6547	0	0			0	if (var ('LIBTOOL'))
6548						{
6549	0				0	my $verbose = define_verbose_libtool ();
6550	0				0	$link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6551						. "\$(LIBTOOLFLAGS) --mode=link ";
6552						}
6553	0				0	&define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6554	0				0	&define_variable ($lang->compiler, $lang);
6555	0		0		0	&define_verbose_tagvar ($lang->lder \|\| 'GEN');
6556						}
6557
6558						sub define_per_target_linker_variable ($$)
6559						{
6560	0			0	0	my ($linker, $target) = @_;
6561
6562						# If the user wrote a custom link command, we don't define ours.
6563	0	0			0	return "${target}_LINK"
6564						if set_seen "${target}_LINK";
6565
6566	0	0			0	my $xlink = $linker ? $linker : 'LINK';
6567
6568	0				0	my $lang = $link_languages{$xlink};
6569	0	0			0	prog_error "Unknown language for linker variable `$xlink'"
6570						unless $lang;
6571
6572	0				0	my $link_command = $lang->link;
6573	0	0			0	if (var 'LIBTOOL')
6574						{
6575	0				0	my $libtool_tag = '';
6576	0	0	0		0	$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6577						if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6578
6579	0				0	my $verbose = define_verbose_libtool ();
6580	0				0	$link_command =
6581						"\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6582						. "--mode=link " . $link_command;
6583						}
6584
6585						# Rewrite each occurrence of `AM_$flag' in the link
6586						# command into `${derived}_$flag' if it exists.
6587	0				0	my $orig_command = $link_command;
6588	0 0				0 0	my @flags = (@{$lang->flags}, 'LDFLAGS');
6589	0	0			0	push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6590	0				0	for my $flag (@flags)
6591						{
6592	0				0	my $val = "${target}_$flag";
6593	0	0			0	$link_command =~ s/$AM_$flag$/$$val$/
6594						if set_seen ($val);
6595						}
6596
6597						# If the computed command is the same as the generic command, use
6598						# the command linker variable.
6599	0	0			0	return ($lang->linker, $lang->lder)
6600						if $link_command eq $orig_command;
6601
6602	0				0	&define_variable ("${target}_LINK", $link_command, INTERNAL);
6603	0				0	return ("${target}_LINK", $lang->lder);
6604						}
6605
6606						################################################################
6607
6608						# &check_trailing_slash ($WHERE, $LINE)
6609						# --------------------------------------
6610						# Return 1 iff $LINE ends with a slash.
6611						# Might modify $LINE.
6612						sub check_trailing_slash ($\$)
6613						{
6614	0			0	0	my ($where, $line) = @_;
6615
6616						# Ignore `##' lines.
6617	0	0			0	return 0 if $$line =~ /$IGNORE_PATTERN/o;
6618
6619						# Catch and fix a common error.
6620	0	0			0	msg "syntax", $where, "whitespace following trailing backslash"
6621						if $$line =~ s/\\\s+\n$/\\\n/;
6622
6623	0				0	return $$line =~ /\\$/;
6624						}
6625
6626
6627						# &read_am_file ($AMFILE, $WHERE)
6628						# -------------------------------
6629						# Read Makefile.am and set up %contents. Simultaneously copy lines
6630						# from Makefile.am into $output_trailer, or define variables as
6631						# appropriate. NOTE we put rules in the trailer section. We want
6632						# user rules to come after our generated stuff.
6633						sub read_am_file ($$)
6634						{
6635	0			0	0	my ($amfile, $where) = @_;
6636
6637	0				0	my $am_file = new Automake::XFile ("< $amfile");
6638	0				0	verb "reading $amfile";
6639
6640						# Keep track of the youngest output dependency.
6641	0				0	my $mtime = mtime $amfile;
6642	0	0			0	$output_deps_greatest_timestamp = $mtime
6643						if $mtime > $output_deps_greatest_timestamp;
6644
6645	0				0	my $spacing = '';
6646	0				0	my $comment = '';
6647	0				0	my $blank = 0;
6648	0				0	my $saw_bk = 0;
6649	0				0	my $var_look = VAR_ASIS;
6650
6651	1 1 1			1	9 2 6	use constant IN_VAR_DEF => 0;
6652	1 1 1			1	4 1 2	use constant IN_RULE_DEF => 1;
6653	1 1 1			1	5 1 2	use constant IN_COMMENT => 2;
6654	0				0	my $prev_state = IN_RULE_DEF;
6655
6656	0				0	while ($_ = $am_file->getline)
6657						{
6658	0				0	$where->set ("$amfile:$.");
6659	0	0 0 0			0	if (/$IGNORE_PATTERN/o)
6660						{
6661						# Merely delete comments beginning with two hashes.
6662						}
6663						elsif (/$WHITE_PATTERN/o)
6664						{
6665	0	0			0	error $where, "blank line following trailing backslash"
6666						if $saw_bk;
6667						# Stick a single white line before the incoming macro or rule.
6668	0				0	$spacing = "\n";
6669	0				0	$blank = 1;
6670						# Flush all comments seen so far.
6671	0	0			0	if ($comment ne '')
6672						{
6673	0				0	$output_vars .= $comment;
6674	0				0	$comment = '';
6675						}
6676						}
6677						elsif (/$COMMENT_PATTERN/o)
6678						{
6679						# Stick comments before the incoming macro or rule. Make
6680						# sure a blank line precedes the first block of comments.
6681	0	0			0	$spacing = "\n" unless $blank;
6682	0				0	$blank = 1;
6683	0				0	$comment .= $spacing . $_;
6684	0				0	$spacing = '';
6685	0				0	$prev_state = IN_COMMENT;
6686						}
6687						else
6688						{
6689	0				0	last;
6690						}
6691	0				0	$saw_bk = check_trailing_slash ($where, $_);
6692						}
6693
6694						# We save the conditional stack on entry, and then check to make
6695						# sure it is the same on exit. This lets us conditionally include
6696						# other files.
6697	0				0	my @saved_cond_stack = @cond_stack;
6698	0				0	my $cond = new Automake::Condition (@cond_stack);
6699
6700	0				0	my $last_var_name = '';
6701	0				0	my $last_var_type = '';
6702	0				0	my $last_var_value = '';
6703	0				0	my $last_where;
6704						# FIXME: shouldn't use $_ in this loop; it is too big.
6705	0				0	while ($_)
6706						{
6707	0				0	$where->set ("$amfile:$.");
6708
6709						# Make sure the line is \n-terminated.
6710	0				0	chomp;
6711	0				0	$_ .= "\n";
6712
6713						# Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6714						# used by users. @MAINT@ is an anachronism now.
6715	0	0			0	$_ =~ s/\@MAINT\@//g
6716						unless $seen_maint_mode;
6717
6718	0				0	my $new_saw_bk = check_trailing_slash ($where, $_);
6719
6720	0	0 0 0 0 0 0 0 0 0 0			0	if (/$IGNORE_PATTERN/o)
6721						{
6722						# Merely delete comments beginning with two hashes.
6723
6724						# Keep any backslash from the previous line.
6725	0				0	$new_saw_bk = $saw_bk;
6726						}
6727						elsif (/$WHITE_PATTERN/o)
6728						{
6729						# Stick a single white line before the incoming macro or rule.
6730	0				0	$spacing = "\n";
6731	0	0			0	error $where, "blank line following trailing backslash"
6732						if $saw_bk;
6733						}
6734						elsif (/$COMMENT_PATTERN/o)
6735						{
6736	0	0	0		0	error $where, "comment following trailing backslash"
6737						if $saw_bk && $prev_state != IN_COMMENT;
6738
6739						# Stick comments before the incoming macro or rule.
6740	0				0	$comment .= $spacing . $_;
6741	0				0	$spacing = '';
6742	0				0	$prev_state = IN_COMMENT;
6743						}
6744						elsif ($saw_bk)
6745						{
6746	0	0 0			0	if ($prev_state == IN_RULE_DEF)
6747						{
6748	0				0	my $cond = new Automake::Condition @cond_stack;
6749	0				0	$output_trailer .= $cond->subst_string;
6750	0				0	$output_trailer .= $_;
6751						}
6752						elsif ($prev_state == IN_COMMENT)
6753						{
6754						# If the line doesn't start with a `#', add it.
6755						# We do this because a continued comment like
6756						# # A = foo \
6757						# bar \
6758						# baz
6759						# is not portable. BSD make doesn't honor
6760						# escaped newlines in comments.
6761	0				0	s/^#?/#/;
6762	0				0	$comment .= $spacing . $_;
6763						}
6764						else # $prev_state == IN_VAR_DEF
6765						{
6766	0	0			0	$last_var_value .= ' '
6767						unless $last_var_value =~ /\s$/;
6768	0				0	$last_var_value .= $_;
6769
6770	0	0			0	if (!/\\$/)
6771						{
6772	0	0			0	Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6773						$last_var_type, $cond,
6774						$last_var_value, $comment,
6775						$last_where, VAR_ASIS)
6776						if $cond != FALSE;
6777	0				0	$comment = $spacing = '';
6778						}
6779						}
6780						}
6781
6782						elsif (/$IF_PATTERN/o)
6783						{
6784	0				0	$cond = cond_stack_if ($1, $2, $where);
6785						}
6786						elsif (/$ELSE_PATTERN/o)
6787						{
6788	0				0	$cond = cond_stack_else ($1, $2, $where);
6789						}
6790						elsif (/$ENDIF_PATTERN/o)
6791						{
6792	0				0	$cond = cond_stack_endif ($1, $2, $where);
6793						}
6794
6795						elsif (/$RULE_PATTERN/o)
6796						{
6797						# Found a rule.
6798	0				0	$prev_state = IN_RULE_DEF;
6799
6800						# For now we have to output all definitions of user rules
6801						# and can't diagnose duplicates (see the comment in
6802						# Automake::Rule::define). So we go on and ignore the return value.
6803	0				0	Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6804
6805	0				0	check_variable_expansions ($_, $where);
6806
6807	0				0	$output_trailer .= $comment . $spacing;
6808	0				0	my $cond = new Automake::Condition @cond_stack;
6809	0				0	$output_trailer .= $cond->subst_string;
6810	0				0	$output_trailer .= $_;
6811	0				0	$comment = $spacing = '';
6812						}
6813						elsif (/$ASSIGNMENT_PATTERN/o)
6814						{
6815						# Found a macro definition.
6816	0				0	$prev_state = IN_VAR_DEF;
6817	0				0	$last_var_name = $1;
6818	0				0	$last_var_type = $2;
6819	0				0	$last_var_value = $3;
6820	0				0	$last_where = $where->clone;
6821	0	0	0		0	if ($3 ne '' && substr ($3, -1) eq "\\")
6822						{
6823						# We preserve the `\' because otherwise the long lines
6824						# that are generated will be truncated by broken
6825						# `sed's.
6826	0				0	$last_var_value = $3 . "\n";
6827						}
6828						# Normally we try to output variable definitions in the
6829						# same format they were input. However, POSIX compliant
6830						# systems are not required to support lines longer than
6831						# 2048 bytes (most notably, some sed implementation are
6832						# limited to 4000 bytes, and sed is used by config.status
6833						# to rewrite Makefile.in into Makefile). Moreover nobody
6834						# would really write such long lines by hand since it is
6835						# hardly maintainable. So if a line is longer that 1000
6836						# bytes (an arbitrary limit), assume it has been
6837						# automatically generated by some tools, and flatten the
6838						# variable definition. Otherwise, keep the variable as it
6839						# as been input.
6840	0	0			0	$var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6841
6842	0	0			0	if (!/\\$/)
6843						{
6844	0	0			0	Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6845						$last_var_type, $cond,
6846						$last_var_value, $comment,
6847						$last_where, $var_look)
6848						if $cond != FALSE;
6849	0				0	$comment = $spacing = '';
6850	0				0	$var_look = VAR_ASIS;
6851						}
6852						}
6853						elsif (/$INCLUDE_PATTERN/o)
6854						{
6855	0				0	my $path = $1;
6856
6857	0	0			0	if ($path =~ s/^\$$top_srcdir$\///)
6858						{
6859	0				0	push (@include_stack, "\$$top_srcdir$/$path");
6860						# Distribute any included file.
6861
6862						# Always use the $(top_srcdir) prefix in DIST_COMMON,
6863						# otherwise OSF make will implicitly copy the included
6864						# file in the build tree during `make distdir' to satisfy
6865						# the dependency.
6866						# (subdircond2.test and subdircond3.test will fail.)
6867	0				0	push_dist_common ("\$$top_srcdir$/$path");
6868						}
6869						else
6870						{
6871	0				0	$path =~ s/\$$srcdir$\///;
6872	0				0	push (@include_stack, "\$$srcdir$/$path");
6873						# Always use the $(srcdir) prefix in DIST_COMMON,
6874						# otherwise OSF make will implicitly copy the included
6875						# file in the build tree during `make distdir' to satisfy
6876						# the dependency.
6877						# (subdircond2.test and subdircond3.test will fail.)
6878	0				0	push_dist_common ("\$$srcdir$/$path");
6879	0	0			0	$path = $relative_dir . "/" . $path if $relative_dir ne '.';
6880						}
6881	0				0	$where->push_context ("`$path' included from here");
6882	0				0	&read_am_file ($path, $where);
6883	0				0	$where->pop_context;
6884						}
6885						else
6886						{
6887						# This isn't an error; it is probably a continued rule.
6888						# In fact, this is what we assume.
6889	0				0	$prev_state = IN_RULE_DEF;
6890	0				0	check_variable_expansions ($_, $where);
6891	0				0	$output_trailer .= $comment . $spacing;
6892	0				0	my $cond = new Automake::Condition @cond_stack;
6893	0				0	$output_trailer .= $cond->subst_string;
6894	0				0	$output_trailer .= $_;
6895	0				0	$comment = $spacing = '';
6896	0	0			0	error $where, "`#' comment at start of rule is unportable"
6897						if $_ =~ /^\t\s*\#/;
6898						}
6899
6900	0				0	$saw_bk = $new_saw_bk;
6901	0				0	$_ = $am_file->getline;
6902						}
6903
6904	0				0	$output_trailer .= $comment;
6905
6906	0	0			0	error ($where, "trailing backslash on last line")
6907						if $saw_bk;
6908
6909	0	0 0			0	error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6910						: "too many conditionals closed in include file"))
6911						if "@saved_cond_stack" ne "@cond_stack";
6912						}
6913
6914
6915						# define_standard_variables ()
6916						# ----------------------------
6917						# A helper for read_main_am_file which initializes configure variables
6918						# and variables from header-vars.am.
6919						sub define_standard_variables
6920						{
6921	0			0	0	my $saved_output_vars = $output_vars;
6922	0				0	my ($comments, undef, $rules) =
6923						file_contents_internal (1, "$libdir/am/header-vars.am",
6924						new Automake::Location);
6925
6926	0				0	foreach my $var (sort keys %configure_vars)
6927						{
6928	0				0	&define_configure_variable ($var);
6929						}
6930
6931	0				0	$output_vars .= $comments . $rules;
6932						}
6933
6934						# Read main am file.
6935						sub read_main_am_file
6936						{
6937	0			0	0	my ($amfile) = @_;
6938
6939						# This supports the strange variable tricks we are about to play.
6940	0	0			0	prog_error (macros_dump () . "variable defined before read_main_am_file")
6941						if (scalar (variables) > 0);
6942
6943						# Generate copyright header for generated Makefile.in.
6944						# We do discard the output of predefined variables, handled below.
6945	0				0	$output_vars = ("# $in_file_name generated by automake "
6946						. $VERSION . " from $am_file_name.\n");
6947	0				0	$output_vars .= '# ' . subst ('configure_input') . "\n";
6948	0				0	$output_vars .= $gen_copyright;
6949
6950						# We want to predefine as many variables as possible. This lets
6951						# the user set them with `+=' in Makefile.am.
6952	0				0	&define_standard_variables;
6953
6954						# Read user file, which might override some of our values.
6955	0				0	&read_am_file ($amfile, new Automake::Location);
6956						}
6957
6958
6959
6960						################################################################
6961
6962						# $FLATTENED
6963						# &flatten ($STRING)
6964						# ------------------
6965						# Flatten the $STRING and return the result.
6966						sub flatten
6967						{
6968	0			0	0	$_ = shift;
6969
6970	0				0	s/\\\n//somg;
6971	0				0	s/\s+/ /g;
6972	0				0	s/^ //;
6973	0				0	s/ $//;
6974
6975	0				0	return $_;
6976						}
6977
6978
6979						# transform_token ($TOKEN, \%PAIRS, $KEY)
6980						# =======================================
6981						# Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6982						# (which should be ?KEY? or any of the special %% requests)..
6983						sub transform_token ($$$)
6984						{
6985	0			0	0	my ($token, $transform, $key) = @_;
6986	0				0	my $res = $transform->{$key};
6987	0	0			0	prog_error "Unknown key `$key' in `$token'" unless defined $res;
6988	0				0	return $res;
6989						}
6990
6991
6992						# transform ($TOKEN, \%PAIRS)
6993						# ===========================
6994						# If ($TOKEN, $VAL) is in %PAIRS:
6995						# - replaces %KEY% with $VAL,
6996						# - enables/disables ?KEY? and ?!KEY?,
6997						# - replaces %?KEY% with TRUE or FALSE.
6998						# - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6999						# IFTRUE / IFFALSE, as appropriate.
7000						sub transform ($$)
7001						{
7002	0			0	0	my ($token, $transform) = @_;
7003
7004						# %KEY%.
7005						# Must be before the following pattern to exclude the case
7006						# when there is neither IFTRUE nor IFFALSE.
7007	0	0 0 0 0			0	if ($token =~ /^%([\w\-]+)%$/)
7008						{
7009	0				0	return transform_token ($token, $transform, $1);
7010						}
7011						# %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
7012						elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
7013						{
7014	0	0	0 0		0	return transform_token ($token, $transform, $1) ? ($2 \|\| '') : ($3 \|\| '');
7015						}
7016						# %?KEY%.
7017						elsif ($token =~ /^%\?([\w\-]+)%$/)
7018						{
7019	0	0			0	return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
7020						}
7021						# ?KEY? and ?!KEY?.
7022						elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
7023						{
7024	0	0			0	my $neg = ($1 eq '!') ? 1 : 0;
7025	0				0	my $val = transform_token ($token, $transform, $2);
7026	0	0			0	return (!!$val == $neg) ? '##%' : '';
7027						}
7028						else
7029						{
7030	0				0	prog_error "Unknown request format: $token";
7031						}
7032						}
7033
7034
7035						# @PARAGRAPHS
7036						# &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7037						# ------------------------------------------
7038						# Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7039						# paragraphs.
7040						sub make_paragraphs ($%)
7041						{
7042	0			0	0	my ($file, %transform) = @_;
7043
7044						# Complete %transform with global options.
7045						# Note that %transform goes last, so it overrides global options.
7046	0	0			0	%transform = ('CYGNUS' => !! option 'cygnus',
7047						'MAINTAINER-MODE'
7048						=> $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7049
7050						'XZ' => !! option 'dist-xz',
7051						'LZMA' => !! option 'dist-lzma',
7052						'BZIP2' => !! option 'dist-bzip2',
7053						'COMPRESS' => !! option 'dist-tarZ',
7054						'GZIP' => ! option 'no-dist-gzip',
7055						'SHAR' => !! option 'dist-shar',
7056						'ZIP' => !! option 'dist-zip',
7057
7058						'INSTALL-INFO' => ! option 'no-installinfo',
7059						'INSTALL-MAN' => ! option 'no-installman',
7060						'HAVE-MANS' => !! var ('MANS'),
7061						'CK-NEWS' => !! option 'check-news',
7062
7063						'SUBDIRS' => !! var ('SUBDIRS'),
7064						'TOPDIR_P' => $relative_dir eq '.',
7065
7066						'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7067						'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7068						'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7069
7070						'LIBTOOL' => !! var ('LIBTOOL'),
7071						'NONLIBTOOL' => 1,
7072						'FIRST' => ! $transformed_files{$file},
7073						%transform);
7074
7075	0				0	$transformed_files{$file} = 1;
7076	0				0	$_ = $am_file_cache{$file};
7077
7078	0	0			0	if (! defined $_)
7079						{
7080	0				0	verb "reading $file";
7081						# Swallow the whole file.
7082	0				0	my $fc_file = new Automake::XFile "< $file";
7083	0				0	my $saved_dollar_slash = $/;
7084	0				0	undef $/;
7085	0				0	$_ = $fc_file->getline;
7086	0				0	$/ = $saved_dollar_slash;
7087	0				0	$fc_file->close;
7088
7089						# Remove ##-comments.
7090						# Besides we don't need more than two consecutive new-lines.
7091	0				0	s/(?:$IGNORE_PATTERN\|(?<=\n\n)\n+)//gom;
7092
7093	0				0	$am_file_cache{$file} = $_;
7094						}
7095
7096						# Substitute Automake template tokens.
7097	0 0				0 0	s/(?: % \?? [\w\-]+ %
7098						\| % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7099						\| \? !? [\w\-]+ \?
7100						)/transform($&, \%transform)/gex;
7101						# transform() may have added some ##%-comments to strip.
7102						# (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7103						# ####### and do not remove the latter.)
7104	0				0	s/^[ \t](?:##%)+.\n//gm;
7105
7106						# Split at unescaped new lines.
7107	0				0	my @lines = split (/(?<!\\)\n/, $_);
7108	0				0	my @res;
7109
7110	0				0	while (defined ($_ = shift @lines))
7111						{
7112	0				0	my $paragraph = $_;
7113						# If we are a rule, eat as long as we start with a tab.
7114	0	0 0			0	if (/$RULE_PATTERN/smo)
7115						{
7116	0		0		0	while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7117						{
7118	0				0	$paragraph .= "\n$_";
7119						}
7120	0				0	unshift (@lines, $_);
7121						}
7122
7123						# If we are a comments, eat as much comments as you can.
7124						elsif (/$COMMENT_PATTERN/smo)
7125						{
7126	0		0		0	while (defined ($_ = shift @lines)
7127						&& $_ =~ /$COMMENT_PATTERN/smo)
7128						{
7129	0				0	$paragraph .= "\n$_";
7130						}
7131	0				0	unshift (@lines, $_);
7132						}
7133
7134	0				0	push @res, $paragraph;
7135						}
7136
7137	0				0	return @res;
7138						}
7139
7140
7141
7142						# ($COMMENT, $VARIABLES, $RULES)
7143						# &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7144						# -------------------------------------------------------------
7145						# Return contents of a file from $libdir/am, automatically skipping
7146						# macros or rules which are already known. $IS_AM iff the caller is
7147						# reading an Automake file (as opposed to the user's Makefile.am).
7148						sub file_contents_internal ($$$%)
7149						{
7150	0			0	0	my ($is_am, $file, $where, %transform) = @_;
7151
7152	0				0	$where->set ($file);
7153
7154	0				0	my $result_vars = '';
7155	0				0	my $result_rules = '';
7156	0				0	my $comment = '';
7157	0				0	my $spacing = '';
7158
7159						# The following flags are used to track rules spanning across
7160						# multiple paragraphs.
7161	0				0	my $is_rule = 0; # 1 if we are processing a rule.
7162	0				0	my $discard_rule = 0; # 1 if the current rule should not be output.
7163
7164						# We save the conditional stack on entry, and then check to make
7165						# sure it is the same on exit. This lets us conditionally include
7166						# other files.
7167	0				0	my @saved_cond_stack = @cond_stack;
7168	0				0	my $cond = new Automake::Condition (@cond_stack);
7169
7170	0				0	foreach (make_paragraphs ($file, %transform))
7171						{
7172						# FIXME: no line number available.
7173	0				0	$where->set ($file);
7174
7175						# Sanity checks.
7176	0	0			0	error $where, "blank line following trailing backslash:\n$_"
7177						if /\\$/;
7178	0	0			0	error $where, "comment following trailing backslash:\n$_"
7179						if /\\#/;
7180
7181	0	0 0 0 0 0 0 0 0			0	if (/^$/)
7182						{
7183	0				0	$is_rule = 0;
7184						# Stick empty line before the incoming macro or rule.
7185	0				0	$spacing = "\n";
7186						}
7187						elsif (/$COMMENT_PATTERN/mso)
7188						{
7189	0				0	$is_rule = 0;
7190						# Stick comments before the incoming macro or rule.
7191	0				0	$comment = "$_\n";
7192						}
7193
7194						# Handle inclusion of other files.
7195						elsif (/$INCLUDE_PATTERN/o)
7196						{
7197	0	0			0	if ($cond != FALSE)
7198						{
7199	0	0			0	my $file = ($is_am ? "$libdir/am/" : '') . $1;
7200	0				0	$where->push_context ("`$file' included from here");
7201						# N-ary `.=' fails.
7202	0				0	my ($com, $vars, $rules)
7203						= file_contents_internal ($is_am, $file, $where, %transform);
7204	0				0	$where->pop_context;
7205	0				0	$comment .= $com;
7206	0				0	$result_vars .= $vars;
7207	0				0	$result_rules .= $rules;
7208						}
7209						}
7210
7211						# Handling the conditionals.
7212						elsif (/$IF_PATTERN/o)
7213						{
7214	0				0	$cond = cond_stack_if ($1, $2, $file);
7215						}
7216						elsif (/$ELSE_PATTERN/o)
7217						{
7218	0				0	$cond = cond_stack_else ($1, $2, $file);
7219						}
7220						elsif (/$ENDIF_PATTERN/o)
7221						{
7222	0				0	$cond = cond_stack_endif ($1, $2, $file);
7223						}
7224
7225						# Handling rules.
7226						elsif (/$RULE_PATTERN/mso)
7227						{
7228	0				0	$is_rule = 1;
7229	0				0	$discard_rule = 0;
7230						# Separate relationship from optional actions: the first
7231						# `new-line tab" not preceded by backslash (continuation
7232						# line).
7233	0				0	my $paragraph = $_;
7234	0				0	/^(.?)(?:(?<!\\)\n(\t.))?$/s;
7235	0		0		0	my ($relationship, $actions) = ($1, $2 \|\| '');
7236
7237						# Separate targets from dependencies: the first colon.
7238	0				0	$relationship =~ /^([^:]+\S+) : (.*)$/som;
7239	0				0	my ($targets, $dependencies) = ($1, $2);
7240						# Remove the escaped new lines.
7241						# I don't know why, but I have to use a tmp $flat_deps.
7242	0				0	my $flat_deps = &flatten ($dependencies);
7243	0				0	my @deps = split (' ', $flat_deps);
7244
7245	0				0	foreach (split (' ', $targets))
7246						{
7247						# FIXME: 1. We are not robust to people defining several targets
7248						# at once, only some of them being in %dependencies. The
7249						# actions from the targets in %dependencies are usually generated
7250						# from the content of %actions, but if some targets in $targets
7251						# are not in %dependencies the ELSE branch will output
7252						# a rule for all $targets (i.e. the targets which are both
7253						# in %dependencies and $targets will have two rules).
7254
7255						# FIXME: 2. The logic here is not able to output a
7256						# multi-paragraph rule several time (e.g. for each condition
7257						# it is defined for) because it only knows the first paragraph.
7258
7259						# FIXME: 3. We are not robust to people defining a subset
7260						# of a previously defined "multiple-target" rule. E.g.
7261						# `foo:' after `foo bar:'.
7262
7263						# Output only if not in FALSE.
7264	0	0	0		0	if (defined $dependencies{$_} && $cond != FALSE)
7265						{
7266	0				0	&depend ($_, @deps);
7267	0				0	register_action ($_, $actions);
7268						}
7269						else
7270						{
7271						# Free-lance dependency. Output the rule for all the
7272						# targets instead of one by one.
7273	0	0			0	my @undefined_conds =
7274						Automake::Rule::define ($targets, $file,
7275						$is_am ? RULE_AUTOMAKE : RULE_USER,
7276						$cond, $where);
7277	0				0	for my $undefined_cond (@undefined_conds)
7278						{
7279	0				0	my $condparagraph = $paragraph;
7280	0 0				0 0	$condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7281	0				0	$result_rules .= "$spacing$comment$condparagraph\n";
7282						}
7283	0	0			0	if (scalar @undefined_conds == 0)
7284						{
7285						# Remember to discard next paragraphs
7286						# if they belong to this rule.
7287						# (but see also FIXME: #2 above.)
7288	0				0	$discard_rule = 1;
7289						}
7290	0				0	$comment = $spacing = '';
7291	0				0	last;
7292						}
7293						}
7294						}
7295
7296						elsif (/$ASSIGNMENT_PATTERN/mso)
7297						{
7298	0				0	my ($var, $type, $val) = ($1, $2, $3);
7299	0	0			0	error $where, "variable `$var' with trailing backslash"
7300						if /\\$/;
7301
7302	0				0	$is_rule = 0;
7303
7304	0	0 0			0	Automake::Variable::define ($var,
7305						$is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7306						$type, $cond, $val, $comment, $where,
7307						VAR_ASIS)
7308						if $cond != FALSE;
7309
7310	0				0	$comment = $spacing = '';
7311						}
7312						else
7313						{
7314						# This isn't an error; it is probably some tokens which
7315						# configure is supposed to replace, such as `@SET-MAKE@',
7316						# or some part of a rule cut by an if/endif.
7317	0	0	0 0		0	if (! $cond->false && ! ($is_rule && $discard_rule))
7318						{
7319	0 0				0 0	s/^/$cond->subst_string/gme;
7320	0				0	$result_rules .= "$spacing$comment$_\n";
7321						}
7322	0				0	$comment = $spacing = '';
7323						}
7324						}
7325
7326	0	0 0			0	error ($where, @cond_stack ?
7327						"unterminated conditionals: @cond_stack" :
7328						"too many conditionals closed in include file")
7329						if "@saved_cond_stack" ne "@cond_stack";
7330
7331	0				0	return ($comment, $result_vars, $result_rules);
7332						}
7333
7334
7335						# $CONTENTS
7336						# &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7337						# ------------------------------------------------
7338						# Return contents of a file from $libdir/am, automatically skipping
7339						# macros or rules which are already known.
7340						sub file_contents ($$%)
7341						{
7342	0			0	0	my ($basename, $where, %transform) = @_;
7343	0				0	my ($comments, $variables, $rules) =
7344						file_contents_internal (1, "$libdir/am/$basename.am", $where,
7345						%transform);
7346	0				0	return "$comments$variables$rules";
7347						}
7348
7349
7350						# @PREFIX
7351						# &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7352						# -----------------------------------------------------
7353						# Find all variable prefixes that are used for install directories. A
7354						# prefix `zar' qualifies iff:
7355						#
7356						# * `zardir' is a variable.
7357						# * `zar_PRIMARY' is a variable.
7358						#
7359						# As a side effect, it looks for misspellings. It is an error to have
7360						# a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7361						# "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7362						# of the same name (with "dir" appended) exists. For instance, if the
7363						# variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7364						# This is to provide a little extra flexibility in those cases which
7365						# need it.
7366						sub am_primary_prefixes ($$@)
7367						{
7368	0			0	0	my ($primary, $can_dist, @prefixes) = @_;
7369
7370	0				0	local $_;
7371	0 0				0 0	my %valid = map { $_ => 0 } @prefixes;
7372	0				0	$valid{'EXTRA'} = 0;
7373	0				0	foreach my $var (variables $primary)
7374						{
7375						# Automake is allowed to define variables that look like primaries
7376						# but which aren't. E.g. INSTALL_sh_DATA.
7377						# Autoconf can also define variables like INSTALL_DATA, so
7378						# ignore all configure variables (at least those which are not
7379						# redefined in Makefile.am).
7380						# FIXME: We should make sure that these variables are not
7381						# conditionally defined (or else adjust the condition below).
7382	0				0	my $def = $var->def (TRUE);
7383	0	0	0		0	next if $def && $def->owner != VAR_MAKEFILE;
7384
7385	0				0	my $varname = $var->name;
7386
7387	0	0			0	if ($varname =~ /^(nobase_)?(dist_\|nodist_)?(.*)_[[:alnum:]]+$/)
7388						{
7389	0		0 0 0		0	my ($base, $dist, $X) = ($1 \|\| '', $2 \|\| '', $3 \|\| '');
7390	0	0 0 0	0 0 0		0	if ($dist ne '' && ! $can_dist)
7391						{
7392	0				0	err_var ($var,
7393						"invalid variable `$varname': `dist' is forbidden");
7394						}
7395						# Standard directories must be explicitly allowed.
7396						elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7397						{
7398	0				0	err_var ($var,
7399						"`${X}dir' is not a legitimate directory " .
7400						"for `$primary'");
7401						}
7402						# A not explicitly valid directory is allowed if Xdir is defined.
7403						elsif (! defined $valid{$X} &&
7404						$var->requires_variables ("`$varname' is used", "${X}dir"))
7405						{
7406						# Nothing to do. Any error message has been output
7407						# by $var->requires_variables.
7408						}
7409						else
7410						{
7411						# Ensure all extended prefixes are actually used.
7412	0				0	$valid{"$base$dist$X"} = 1;
7413						}
7414						}
7415						else
7416						{
7417	0				0	prog_error "unexpected variable name: $varname";
7418						}
7419						}
7420
7421						# Return only those which are actually defined.
7422	0 0				0 0	return sort grep { var ($_ . '_' . $primary) } keys %valid;
7423						}
7424
7425
7426						# Handle `where_HOW' variable magic. Does all lookups, generates
7427						# install code, and possibly generates code to define the primary
7428						# variable. The first argument is the name of the .am file to munge,
7429						# the second argument is the primary variable (e.g. HEADERS), and all
7430						# subsequent arguments are possible installation locations.
7431						#
7432						# Returns list of [$location, $value] pairs, where
7433						# $value's are the values in all where_HOW variable, and $location
7434						# there associated location (the place here their parent variables were
7435						# defined).
7436						#
7437						# FIXME: this should be rewritten to be cleaner. It should be broken
7438						# up into multiple functions.
7439						#
7440						# Usage is: am_install_var (OPTION..., file, HOW, where...)
7441						sub am_install_var
7442						{
7443	0			0	0	my (@args) = @_;
7444
7445	0				0	my $do_require = 1;
7446	0				0	my $can_dist = 0;
7447	0				0	my $default_dist = 0;
7448	0				0	while (@args)
7449						{
7450	0	0 0 0 0			0	if ($args[0] eq '-noextra')
7451						{
7452	0				0	$do_require = 0;
7453						}
7454						elsif ($args[0] eq '-candist')
7455						{
7456	0				0	$can_dist = 1;
7457						}
7458						elsif ($args[0] eq '-defaultdist')
7459						{
7460	0				0	$default_dist = 1;
7461	0				0	$can_dist = 1;
7462						}
7463						elsif ($args[0] !~ /^-/)
7464						{
7465	0				0	last;
7466						}
7467	0				0	shift (@args);
7468						}
7469
7470	0				0	my ($file, $primary, @prefix) = @args;
7471
7472						# Now that configure substitutions are allowed in where_HOW
7473						# variables, it is an error to actually define the primary. We
7474						# allow `JAVA', as it is customarily used to mean the Java
7475						# interpreter. This is but one of several Java hacks. Similarly,
7476						# `PYTHON' is customarily used to mean the Python interpreter.
7477	0	0	0		0	reject_var $primary, "`$primary' is an anachronism"
7478						unless $primary eq 'JAVA' \|\| $primary eq 'PYTHON';
7479
7480						# Get the prefixes which are valid and actually used.
7481	0				0	@prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7482
7483						# If a primary includes a configure substitution, then the EXTRA_
7484						# form is required. Otherwise we can't properly do our job.
7485	0				0	my $require_extra;
7486
7487	0				0	my @used = ();
7488	0				0	my @result = ();
7489
7490	0				0	foreach my $X (@prefix)
7491						{
7492	0				0	my $nodir_name = $X;
7493	0				0	my $one_name = $X . '_' . $primary;
7494	0				0	my $one_var = var $one_name;
7495
7496	0				0	my $strip_subdir = 1;
7497						# If subdir prefix should be preserved, do so.
7498	0	0			0	if ($nodir_name =~ /^nobase_/)
7499						{
7500	0				0	$strip_subdir = 0;
7501	0				0	$nodir_name =~ s/^nobase_//;
7502						}
7503
7504						# If files should be distributed, do so.
7505	0				0	my $dist_p = 0;
7506	0	0			0	if ($can_dist)
7507						{
7508	0		0		0	$dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7509						\|\| (! $default_dist && $nodir_name =~ /^dist_/));
7510	0				0	$nodir_name =~ s/^(dist\|nodist)_//;
7511						}
7512
7513
7514						# Use the location of the currently processed variable.
7515						# We are not processing a particular condition, so pick the first
7516						# available.
7517	0				0	my $tmpcond = $one_var->conditions->one_cond;
7518	0				0	my $where = $one_var->rdef ($tmpcond)->location->clone;
7519
7520						# Append actual contents of where_PRIMARY variable to
7521						# @result, skipping @substitutions@.
7522	0				0	foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7523						{
7524	0				0	my ($loc, $value) = @$locvals;
7525						# Skip configure substitutions.
7526	0	0			0	if ($value =~ /^\@.*\@$/)
7527						{
7528	0	0 0			0	if ($nodir_name eq 'EXTRA')
7529						{
7530	0				0	error ($where,
7531						"`$one_name' contains configure substitution, "
7532						. "but shouldn't");
7533						}
7534						# Check here to make sure variables defined in
7535						# configure.ac do not imply that EXTRA_PRIMARY
7536						# must be defined.
7537						elsif (! defined $configure_vars{$one_name})
7538						{
7539	0	0			0	$require_extra = $one_name
7540						if $do_require;
7541						}
7542						}
7543						else
7544						{
7545						# Strip any $(EXEEXT) suffix the user might have added, or this
7546						# will confuse &handle_source_transform and &check_canonical_spelling.
7547						# We'll add $(EXEEXT) back later anyway.
7548						# Do it here rather than in handle_programs so the uniquifying at the
7549						# end of this function works.
7550	0 0	0			0 0	${$locvals}[1] =~ s/\$$EXEEXT$$//
7551						if $primary eq 'PROGRAMS';
7552
7553	0				0	push (@result, $locvals);
7554						}
7555						}
7556						# A blatant hack: we rewrite each _PROGRAMS primary to include
7557						# EXEEXT.
7558	0 0	0		0	0 0	append_exeext { 1 } $one_name
7559						if $primary eq 'PROGRAMS';
7560						# "EXTRA" shouldn't be used when generating clean targets,
7561						# all, or install targets. We used to warn if EXTRA_FOO was
7562						# defined uselessly, but this was annoying.
7563						next
7564	0	0			0	if $nodir_name eq 'EXTRA';
7565
7566	0	0			0	if ($nodir_name eq 'check')
7567						{
7568	0				0	push (@check, '$(' . $one_name . ')');
7569						}
7570						else
7571						{
7572	0				0	push (@used, '$(' . $one_name . ')');
7573						}
7574
7575						# Is this to be installed?
7576	0		0		0	my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7577
7578						# If so, with install-exec? (or install-data?).
7579	0				0	my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7580
7581	0		0		0	my $check_options_p = $install_p && !! option 'std-options';
7582
7583						# Use the location of the currently processed variable as context.
7584	0				0	$where->push_context ("while processing `$one_name'");
7585
7586						# The variable containing all files to distribute.
7587	0				0	my $distvar = "\$($one_name)";
7588	0	0	0		0	$distvar = shadow_unconditionally ($one_name, $where)
7589						if ($dist_p && $one_var->has_conditional_contents);
7590
7591						# Singular form of $PRIMARY.
7592	0				0	(my $one_primary = $primary) =~ s/S$//;
7593	0				0	$output_rules .= &file_contents ($file, $where,
7594						PRIMARY => $primary,
7595						ONE_PRIMARY => $one_primary,
7596						DIR => $X,
7597						NDIR => $nodir_name,
7598						BASE => $strip_subdir,
7599
7600						EXEC => $exec_p,
7601						INSTALL => $install_p,
7602						DIST => $dist_p,
7603						DISTVAR => $distvar,
7604						'CK-OPTS' => $check_options_p);
7605						}
7606
7607						# The JAVA variable is used as the name of the Java interpreter.
7608						# The PYTHON variable is used as the name of the Python interpreter.
7609	0	0	0		0	if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7610						{
7611						# Define it.
7612	0				0	define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7613	0				0	$output_vars .= "\n";
7614						}
7615
7616	0	0	0		0	err_var ($require_extra,
7617						"`$require_extra' contains configure substitution,\n"
7618						. "but `EXTRA_$primary' not defined")
7619						if ($require_extra && ! var ('EXTRA_' . $primary));
7620
7621						# Push here because PRIMARY might be configure time determined.
7622	0	0	0		0	push (@all, '$(' . $primary . ')')
7623						if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7624
7625						# Make the result unique. This lets the user use conditionals in
7626						# a natural way, but still lets us program lazily -- we don't have
7627						# to worry about handling a particular object more than once.
7628						# We will keep only one location per object.
7629	0				0	my %result = ();
7630	0				0	for my $pair (@result)
7631						{
7632	0				0	my ($loc, $val) = @$pair;
7633	0				0	$result{$val} = $loc;
7634						}
7635	0				0	my @l = sort keys %result;
7636	0 0				0 0	return map { [$result{$_}->clone, $_] } @l;
7637						}
7638
7639
7640						################################################################
7641
7642						# Each key in this hash is the name of a directory holding a
7643						# Makefile.in. These variables are local to `is_make_dir'.
7644	1				2	my %make_dirs = ();
7645	1				2	my $make_dirs_set = 0;
7646
7647						sub is_make_dir
7648						{
7649	0			0	0	my ($dir) = @_;
7650	0	0			0	if (! $make_dirs_set)
7651						{
7652	0				0	foreach my $iter (@configure_input_files)
7653						{
7654	0				0	$make_dirs{dirname ($iter)} = 1;
7655						}
7656						# We also want to notice Makefile.in's.
7657	0				0	foreach my $iter (@other_input_files)
7658						{
7659	0	0			0	if ($iter =~ /Makefile\.in$/)
7660						{
7661	0				0	$make_dirs{dirname ($iter)} = 1;
7662						}
7663						}
7664	0				0	$make_dirs_set = 1;
7665						}
7666	0				0	return defined $make_dirs{$dir};
7667						}
7668
7669						################################################################
7670
7671						# Find the aux dir. This should match the algorithm used by
7672						# ./configure. (See the Autoconf documentation for for
7673						# AC_CONFIG_AUX_DIR.)
7674						sub locate_aux_dir ()
7675						{
7676	0	0		0	0	if (! $config_aux_dir_set_in_configure_ac)
7677						{
7678						# The default auxiliary directory is the first
7679						# of ., .., or ../.. that contains install-sh.
7680						# Assume . if install-sh doesn't exist yet.
7681	0				0	for my $dir (qw (. .. ../..))
7682						{
7683	0	0			0	if (-f "$dir/install-sh")
7684						{
7685	0				0	$config_aux_dir = $dir;
7686	0				0	last;
7687						}
7688						}
7689	0	0			0	$config_aux_dir = '.' unless $config_aux_dir;
7690						}
7691						# Avoid unsightly '/.'s.
7692						$am_config_aux_dir =
7693	0	0			0	'$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7694	0				0	$am_config_aux_dir =~ s,/*$,,;
7695						}
7696
7697
7698						# &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7699						# --------------------------------------------------
7700						# See if we want to push this file onto dist_common. This function
7701						# encodes the rules for deciding when to do so.
7702						sub maybe_push_required_file
7703						{
7704	0			0	0	my ($dir, $file, $fullfile) = @_;
7705
7706	0	0 0	0		0	if ($dir eq $relative_dir)
7707						{
7708	0				0	push_dist_common ($file);
7709	0				0	return 1;
7710						}
7711						elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7712						{
7713						# If we are doing the topmost directory, and the file is in a
7714						# subdir which does not have a Makefile, then we distribute it
7715						# here.
7716
7717						# If a required file is above the source tree, it is important
7718						# to prefix it with `$(srcdir)' so that no VPATH search is
7719						# performed. Otherwise problems occur with Make implementations
7720						# that rewrite and simplify rules whose dependencies are found in a
7721						# VPATH location. Here is an example with OSF1/Tru64 Make.
7722						#
7723						# % cat Makefile
7724						# VPATH = sub
7725						# distdir: ../a
7726						# echo ../a
7727						# % ls
7728						# Makefile a
7729						# % make
7730						# echo a
7731						# a
7732						#
7733						# Dependency `../a' was found in `sub/../a', but this make
7734						# implementation simplified it as `a'. (Note that the sub/
7735						# directory does not even exist.)
7736						#
7737						# This kind of VPATH rewriting seems hard to cancel. The
7738						# distdir.am hack against VPATH rewriting works only when no
7739						# simplification is done, i.e., for dependencies which are in
7740						# subdirectories, not in enclosing directories. Hence, in
7741						# the latter case we use a full path to make sure no VPATH
7742						# search occurs.
7743	0	0			0	$fullfile = '$(srcdir)/' . $fullfile
7744						if $dir =~ m,^\.\.(?:$\|/),;
7745
7746	0				0	push_dist_common ($fullfile);
7747	0				0	return 1;
7748						}
7749	0				0	return 0;
7750						}
7751
7752
7753						# If a file name appears as a key in this hash, then it has already
7754						# been checked for. This allows us not to report the same error more
7755						# than once.
7756	1				2	my %required_file_not_found = ();
7757
7758						# &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7759						# --------------------------------------------------------------
7760						# Verify that the file must exist in $DIRECTORY, or install it.
7761						# $MYSTRICT is the strictness level at which this file becomes required.
7762						sub require_file_internal ($$$@)
7763						{
7764	0			0	0	my ($where, $mystrict, $dir, @files) = @_;
7765
7766	0				0	foreach my $file (@files)
7767						{
7768	0				0	my $fullfile = "$dir/$file";
7769	0				0	my $found_it = 0;
7770	0				0	my $dangling_sym = 0;
7771
7772	0	0 0	0		0	if (-l $fullfile && ! -f $fullfile)
7773						{
7774	0				0	$dangling_sym = 1;
7775						}
7776						elsif (dir_has_case_matching_file ($dir, $file))
7777						{
7778	0				0	$found_it = 1;
7779	0				0	maybe_push_required_file ($dir, $file, $fullfile);
7780						}
7781
7782						# `--force-missing' only has an effect if `--add-missing' is
7783						# specified.
7784	0	0	0		0	if ($found_it && (! $add_missing \|\| ! $force_missing))
7785						{
7786	0				0	next;
7787						}
7788						else
7789						{
7790						# If we've already looked for it, we're done. You might
7791						# wonder why we don't do this before searching for the
7792						# file. If we do that, then something like
7793						# AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7794						# DIST_COMMON.
7795	0	0			0	if (! $found_it)
7796						{
7797	0	0			0	next if defined $required_file_not_found{$fullfile};
7798	0				0	$required_file_not_found{$fullfile} = 1;
7799						}
7800
7801	0	0			0	if ($strictness >= $mystrict)
7802						{
7803	0	0	0		0	if ($dangling_sym && $add_missing)
7804						{
7805	0				0	unlink ($fullfile);
7806						}
7807
7808	0				0	my $trailer = '';
7809	0				0	my $trailer2 = '';
7810	0				0	my $suppress = 0;
7811
7812						# Only install missing files according to our desired
7813						# strictness level.
7814	0				0	my $message = "required file `$fullfile' not found";
7815	0	0			0	if ($add_missing)
7816						{
7817	0	0			0	if (-f "$libdir/$file")
7818						{
7819	0				0	$suppress = 1;
7820
7821						# Install the missing file. Symlink if we
7822						# can, copy if we must. Note: delete the file
7823						# first, in case it is a dangling symlink.
7824	0				0	$message = "installing `$fullfile'";
7825
7826						# The license file should not be volatile.
7827	0	0			0	if ($file eq "COPYING")
7828						{
7829	0				0	$message .= " using GNU General Public License v3 file";
7830	0				0	$trailer2 = "\n Consider adding the COPYING file"
7831						. " to the version control system"
7832						. "\n for your code, to avoid questions"
7833						. " about which license your project uses.";
7834						}
7835
7836						# Windows Perl will hang if we try to delete a
7837						# file that doesn't exist.
7838	0	0			0	unlink ($fullfile) if -f $fullfile;
7839	0	0 0	0		0	if ($symlink_exists && ! $copy_missing)
7840						{
7841	0	0	0		0	if (! symlink ("$libdir/$file", $fullfile)
7842						\|\| ! -e $fullfile)
7843						{
7844	0				0	$suppress = 0;
7845	0				0	$trailer = "; error while making link: $!";
7846						}
7847						}
7848						elsif (system ('cp', "$libdir/$file", $fullfile))
7849						{
7850	0				0	$suppress = 0;
7851	0				0	$trailer = "\n error while copying";
7852						}
7853	0				0	set_dir_cache_file ($dir, $file);
7854						}
7855
7856	0	0			0	if (! maybe_push_required_file (dirname ($fullfile),
7857						$file, $fullfile))
7858						{
7859	0	0	0		0	if (! $found_it && ! $automake_will_process_aux_dir)
7860						{
7861						# We have added the file but could not push it
7862						# into DIST_COMMON, probably because this is
7863						# an auxiliary file and we are not processing
7864						# the top level Makefile. Furthermore Automake
7865						# hasn't been asked to create the Makefile.in
7866						# that distributes the aux dir files.
7867	0				0	error ($where, 'Please make a full run of automake'
7868						. " so $fullfile gets distributed.");
7869						}
7870						}
7871						}
7872						else
7873						{
7874	0	0			0	$trailer = "\n `automake --add-missing' can install `$file'"
7875						if -f "$libdir/$file";
7876						}
7877
7878						# If --force-missing was specified, and we have
7879						# actually found the file, then do nothing.
7880						next
7881	0	0	0		0	if $found_it && $force_missing;
7882
7883						# If we couldn't install the file, but it is a target in
7884						# the Makefile, don't print anything. This allows files
7885						# like README, AUTHORS, or THANKS to be generated.
7886						next
7887	0	0	0		0	if !$suppress && rule $file;
7888
7889	0	0			0	msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7890						}
7891						}
7892						}
7893						}
7894
7895						# &require_file ($WHERE, $MYSTRICT, @FILES)
7896						# -----------------------------------------
7897						sub require_file ($$@)
7898						{
7899	0			0	0	my ($where, $mystrict, @files) = @_;
7900	0				0	require_file_internal ($where, $mystrict, $relative_dir, @files);
7901						}
7902
7903						# &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7904						# -----------------------------------------------------------
7905						sub require_file_with_macro ($$$@)
7906						{
7907	0			0	0	my ($cond, $macro, $mystrict, @files) = @_;
7908	0	0			0	$macro = rvar ($macro) unless ref $macro;
7909	0				0	require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7910						}
7911
7912						# &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7913						# ----------------------------------------------------------------
7914						# Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7915						# must be in that directory. Otherwise expect it in the current directory.
7916						sub require_libsource_with_macro ($$$@)
7917						{
7918	0			0	0	my ($cond, $macro, $mystrict, @files) = @_;
7919	0	0			0	$macro = rvar ($macro) unless ref $macro;
7920	0	0			0	if ($config_libobj_dir)
7921						{
7922	0				0	require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7923						$config_libobj_dir, @files);
7924						}
7925						else
7926						{
7927	0				0	require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7928						}
7929						}
7930
7931						# Queue to push require_conf_file requirements to.
7932	1				1	my $required_conf_file_queue;
7933
7934						# &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
7935						# -------------------------------------------------------------------------
7936						sub queue_required_conf_file ($$$$@)
7937						{
7938	0			0	0	my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7939	0				0	my @serial_loc;
7940	0	0			0	if (ref $where)
7941						{
7942	0				0	@serial_loc = (QUEUE_LOCATION, $where->serialize ());
7943						}
7944						else
7945						{
7946	0				0	@serial_loc = (QUEUE_STRING, $where);
7947						}
7948	0				0	$queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7949						}
7950
7951						# &require_queued_conf_file ($QUEUE)
7952						# ----------------------------------
7953						sub require_queued_conf_file ($)
7954						{
7955	0			0	0	my ($queue) = @_;
7956	0				0	my $where;
7957	0				0	my $dir = $queue->dequeue ();
7958	0				0	my $loc_key = $queue->dequeue ();
7959	0	0 0			0	if ($loc_key eq QUEUE_LOCATION)
7960						{
7961	0				0	$where = Automake::Location::deserialize ($queue);
7962						}
7963						elsif ($loc_key eq QUEUE_STRING)
7964						{
7965	0				0	$where = $queue->dequeue ();
7966						}
7967						else
7968						{
7969	0				0	prog_error "unexpected key $loc_key";
7970						}
7971	0				0	my $mystrict = $queue->dequeue ();
7972	0				0	my $nfiles = $queue->dequeue ();
7973	0				0	my @files;
7974						push @files, $queue->dequeue ()
7975	0 0				0 0	foreach (1 .. $nfiles);
7976
7977						# Dequeuing happens outside of per-makefile context, so we have to
7978						# set the variables used by require_file_internal and the functions
7979						# it calls. Gross!
7980	0				0	$relative_dir = $dir;
7981	0				0	require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7982						}
7983
7984						# &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7985						# ----------------------------------------------
7986						# Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
7987						# worker threads may queue up the action to be serialized by the master.
7988						#
7989						# FIXME: this seriously relies on the semantics of require_file_internal
7990						# and maybe_push_required_file, in that we exploit the fact that only the
7991						# contents of the last handled output file may be impacted (which in turn
7992						# is dealt with by the master thread).
7993						sub require_conf_file ($$@)
7994						{
7995	0			0	0	my ($where, $mystrict, @files) = @_;
7996	0	0			0	if (defined $required_conf_file_queue)
7997						{
7998	0				0	queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
7999						$relative_dir, $where, $mystrict, @files);
8000						}
8001						else
8002						{
8003	0				0	require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8004						}
8005						}
8006
8007
8008						# &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8009						# ----------------------------------------------------------------
8010						sub require_conf_file_with_macro ($$$@)
8011						{
8012	0			0	0	my ($cond, $macro, $mystrict, @files) = @_;
8013	0				0	require_conf_file (rvar ($macro)->rdef ($cond)->location,
8014						$mystrict, @files);
8015						}
8016
8017						################################################################
8018
8019						# &require_build_directory ($DIRECTORY)
8020						# ------------------------------------
8021						# Emit rules to create $DIRECTORY if needed, and return
8022						# the file that any target requiring this directory should be made
8023						# dependent upon.
8024						# We don't want to emit the rule twice, and want to reuse it
8025						# for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
8026						sub require_build_directory ($)
8027						{
8028	0			0	0	my $directory = shift;
8029
8030	0	0			0	return $directory_map{$directory} if exists $directory_map{$directory};
8031
8032	0				0	my $cdir = File::Spec->canonpath ($directory);
8033
8034	0	0			0	if (exists $directory_map{$cdir})
8035						{
8036	0				0	my $stamp = $directory_map{$cdir};
8037	0				0	$directory_map{$directory} = $stamp;
8038	0				0	return $stamp;
8039						}
8040
8041	0				0	my $dirstamp = "$cdir/\$(am__dirstamp)";
8042
8043	0				0	$directory_map{$directory} = $dirstamp;
8044	0				0	$directory_map{$cdir} = $dirstamp;
8045
8046						# Set a variable for the dirstamp basename.
8047	0				0	define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8048						'$(am__leading_dot)dirstamp');
8049
8050						# Directory must be removed by `make distclean'.
8051	0				0	$clean_files{$dirstamp} = DIST_CLEAN;
8052
8053	0				0	$output_rules .= ("$dirstamp:\n"
8054						. "\t\@\$(MKDIR_P) $directory\n"
8055						. "\t\@: > $dirstamp\n");
8056
8057	0				0	return $dirstamp;
8058						}
8059
8060						# &require_build_directory_maybe ($FILE)
8061						# --------------------------------------
8062						# If $FILE lies in a subdirectory, emit a rule to create this
8063						# directory and return the file that $FILE should be made
8064						# dependent upon. Otherwise, just return the empty string.
8065						sub require_build_directory_maybe ($)
8066						{
8067	0			0	0	my $file = shift;
8068	0				0	my $directory = dirname ($file);
8069
8070	0	0			0	if ($directory ne '.')
8071						{
8072	0				0	return require_build_directory ($directory);
8073						}
8074						else
8075						{
8076	0				0	return '';
8077						}
8078						}
8079
8080						################################################################
8081
8082						# Push a list of files onto dist_common.
8083						sub push_dist_common
8084						{
8085	0	0		0	0	prog_error "push_dist_common run after handle_dist"
8086						if $handle_dist_run;
8087	0				0	Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8088						'', INTERNAL, VAR_PRETTY);
8089						}
8090
8091
8092						################################################################
8093
8094						# generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8095						# ----------------------------------------------
8096						# Generate a Makefile.in given the name of the corresponding Makefile and
8097						# the name of the file output by config.status.
8098						sub generate_makefile ($$)
8099						{
8100	0			0	0	my ($makefile_am, $makefile_in) = @_;
8101
8102						# Reset all the Makefile.am related variables.
8103	0				0	initialize_per_input;
8104
8105						# AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8106						# warnings for this file. So hold any warning issued before
8107						# we have processed AUTOMAKE_OPTIONS.
8108	0				0	buffer_messages ('warning');
8109
8110						# Name of input file ("Makefile.am") and output file
8111						# ("Makefile.in"). These have no directory components.
8112	0				0	$am_file_name = basename ($makefile_am);
8113	0				0	$in_file_name = basename ($makefile_in);
8114
8115						# $OUTPUT is encoded. If it contains a ":" then the first element
8116						# is the real output file, and all remaining elements are input
8117						# files. We don't scan or otherwise deal with these input files,
8118						# other than to mark them as dependencies. See
8119						# &scan_autoconf_files for details.
8120	0				0	my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8121
8122	0				0	$relative_dir = dirname ($makefile);
8123	0				0	$am_relative_dir = dirname ($makefile_am);
8124	0				0	$topsrcdir = backname ($relative_dir);
8125
8126	0				0	read_main_am_file ($makefile_am);
8127	0	0			0	if (handle_options)
8128						{
8129						# Process buffered warnings.
8130	0				0	flush_messages;
8131						# Fatal error. Just return, so we can continue with next file.
8132	0				0	return;
8133						}
8134						# Process buffered warnings.
8135	0				0	flush_messages;
8136
8137						# There are a few install-related variables that you should not define.
8138	0				0	foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8139						{
8140	0				0	my $v = var $var;
8141	0	0			0	if ($v)
8142						{
8143	0				0	my $def = $v->def (TRUE);
8144	0	0			0	prog_error "$var not defined in condition TRUE"
8145						unless $def;
8146	0	0			0	reject_var $var, "`$var' should not be defined"
8147						if $def->owner != VAR_AUTOMAKE;
8148						}
8149						}
8150
8151						# Catch some obsolete variables.
8152	0	0			0	msg_var ('obsolete', 'INCLUDES',
8153						"`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8154						if var ('INCLUDES');
8155
8156						# Must do this after reading .am file.
8157	0				0	define_variable ('subdir', $relative_dir, INTERNAL);
8158
8159						# If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8160						# recursive rules are enabled.
8161	0	0	0		0	define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8162						if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8163
8164						# Check first, because we might modify some state.
8165	0				0	check_cygnus;
8166	0				0	check_gnu_standards;
8167	0				0	check_gnits_standards;
8168
8169	0				0	handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8170	0				0	handle_gettext;
8171	0				0	handle_libraries;
8172	0				0	handle_ltlibraries;
8173	0				0	handle_programs;
8174	0				0	handle_scripts;
8175
8176						# These must be run after all the sources are scanned. They
8177						# use variables defined by &handle_libraries, &handle_ltlibraries,
8178						# or &handle_programs.
8179	0				0	handle_compile;
8180	0				0	handle_languages;
8181	0				0	handle_libtool;
8182
8183						# Variables used by distdir.am and tags.am.
8184	0				0	define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8185	0	0			0	if (! option 'no-dist')
8186						{
8187	0				0	define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8188						}
8189
8190	0				0	handle_multilib;
8191	0				0	handle_texinfo;
8192	0				0	handle_emacs_lisp;
8193	0				0	handle_python;
8194	0				0	handle_java;
8195	0				0	handle_man_pages;
8196	0				0	handle_data;
8197	0				0	handle_headers;
8198	0				0	handle_subdirs;
8199	0				0	handle_tags;
8200	0				0	handle_minor_options;
8201						# Must come after handle_programs so that %known_programs is up-to-date.
8202	0				0	handle_tests;
8203
8204						# This must come after most other rules.
8205	0				0	handle_dist;
8206
8207	0				0	handle_footer;
8208	0				0	do_check_merge_target;
8209	0				0	handle_all ($makefile);
8210
8211						# FIXME: Gross!
8212	0	0	0		0	if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8213						{
8214	0				0	$output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8215						}
8216	0	0	0		0	if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8217						{
8218	0				0	$output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8219						}
8220
8221	0				0	handle_install;
8222	0				0	handle_clean ($makefile);
8223	0				0	handle_factored_dependencies;
8224
8225						# Comes last, because all the above procedures may have
8226						# defined or overridden variables.
8227	0				0	$output_vars .= output_variables;
8228
8229	0				0	check_typos;
8230
8231	0				0	my ($out_file) = $output_directory . '/' . $makefile_in;
8232
8233	0	0			0	if ($exit_code != 0)
8234						{
8235	0				0	verb "not writing $out_file because of earlier errors";
8236	0				0	return;
8237						}
8238
8239	0	0			0	if (! -d ($output_directory . '/' . $am_relative_dir))
8240						{
8241	0				0	mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8242						}
8243
8244						# We make sure that `all:' is the first target.
8245	0				0	my $output =
8246						"$output_vars$output_all$output_header$output_rules$output_trailer";
8247
8248						# Decide whether we must update the output file or not.
8249						# We have to update in the following situations.
8250						# * $force_generation is set.
8251						# * any of the output dependencies is younger than the output
8252						# * the contents of the output is different (this can happen
8253						# if the project has been populated with a file listed in
8254						# @common_files since the last run).
8255						# Output's dependencies are split in two sets:
8256						# * dependencies which are also configure dependencies
8257						# These do not change between each Makefile.am
8258						# * other dependencies, specific to the Makefile.am being processed
8259						# (such as the Makefile.am itself, or any Makefile fragment
8260						# it includes).
8261	0				0	my $timestamp = mtime $out_file;
8262	0	0	0		0	if (! $force_generation
8263						&& $configure_deps_greatest_timestamp < $timestamp
8264						&& $output_deps_greatest_timestamp < $timestamp
8265						&& $output eq contents ($out_file))
8266						{
8267	0				0	verb "$out_file unchanged";
8268						# No need to update.
8269	0				0	return;
8270						}
8271
8272	0	0			0	if (-e $out_file)
8273						{
8274	0	0			0	unlink ($out_file)
8275						or fatal "cannot remove $out_file: $!\n";
8276						}
8277
8278	0				0	my $gm_file = new Automake::XFile "> $out_file";
8279	0				0	verb "creating $out_file";
8280	0				0	print $gm_file $output;
8281						}
8282
8283						################################################################
8284
8285
8286
8287
8288						################################################################
8289
8290						# Print usage information.
8291						sub usage ()
8292						{
8293	0			0	0	print "Usage: $0 [OPTION] ... [Makefile]...
8294
8295						Generate Makefile.in for configure from Makefile.am.
8296
8297						Operation modes:
8298						--help print this help, then exit
8299						--version print version number, then exit
8300						-v, --verbose verbosely list files processed
8301						--no-force only update Makefile.in's that are out of date
8302						-W, --warnings=CATEGORY report the warnings falling in CATEGORY
8303
8304						Dependency tracking:
8305						-i, --ignore-deps disable dependency tracking code
8306						--include-deps enable dependency tracking code
8307
8308						Flavors:
8309						--cygnus assume program is part of Cygnus-style tree
8310						--foreign set strictness to foreign
8311						--gnits set strictness to gnits
8312						--gnu set strictness to gnu
8313
8314						Library files:
8315						-a, --add-missing add missing standard files to package
8316						--libdir=DIR directory storing library files
8317						-c, --copy with -a, copy missing files (default is symlink)
8318						-f, --force-missing force update of standard files
8319
8320						";
8321	0				0	Automake::ChannelDefs::usage;
8322
8323	0				0	my ($last, @lcomm);
8324	0				0	$last = '';
8325	0				0	foreach my $iter (sort ((@common_files, @common_sometimes)))
8326						{
8327	0	0			0	push (@lcomm, $iter) unless $iter eq $last;
8328	0				0	$last = $iter;
8329						}
8330
8331	0				0	my @four;
8332	0				0	print "\nFiles which are automatically distributed, if found:\n";
8333						format USAGE_FORMAT =
8334						@<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8335						$four[0], $four[1], $four[2], $four[3]
8336						.
8337	0				0	$~ = "USAGE_FORMAT";
8338
8339	0				0	my $cols = 4;
8340	0				0	my $rows = int(@lcomm / $cols);
8341	0				0	my $rest = @lcomm % $cols;
8342
8343	0	0			0	if ($rest)
8344						{
8345	0				0	$rows++;
8346						}
8347						else
8348						{
8349	0				0	$rest = $cols;
8350						}
8351
8352						for (my $y = 0; $y < $rows; $y++)
8353						{
8354	0				0	@four = ("", "", "", "");
8355						for (my $x = 0; $x < $cols; $x++)
8356						{
8357	0	0	0		0	last if $y + 1 == $rows && $x == $rest;
8358
8359	0	0			0	my $idx = (($x > $rest)
8360						? ($rows * $rest + ($rows - 1) * ($x - $rest))
8361						: ($rows * $x));
8362
8363	0				0	$idx += $y;
8364	0				0	$four[$x] = $lcomm[$idx];
8365	0				0	}
8366	0				0	write;
8367	0				0	}
8368
8369	0				0	print "\nReport bugs to <bug-automake\@gnu.org>.\n";
8370
8371						# --help always returns 0 per GNU standards.
8372	0				0	exit 0;
8373						}
8374
8375
8376						# &version ()
8377						# -----------
8378						# Print version information
8379						sub version ()
8380						{
8381	1			1	2136	print <<EOF;
8382						automake (GNU $PACKAGE) $VERSION
8383						Copyright (C) 2009 Free Software Foundation, Inc.
8384						License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8385						This is free software: you are free to change and redistribute it.
8386						There is NO WARRANTY, to the extent permitted by law.
8387
8388						Written by Tom Tromey <tromey\@redhat.com>
8389						and Alexandre Duret-Lutz <adl\@gnu.org>.
8390						EOF
8391						# --version always returns 0 per GNU standards.
8392	1				2	exit 0;
8393						}
8394
8395						################################################################
8396
8397						# Parse command line.
8398						sub parse_arguments ()
8399						{
8400						# Start off as gnu.
8401	1			1	4	set_strictness ('gnu');
8402
8403	1				5	my $cli_where = new Automake::Location;
8404						my %cli_options =
8405						(
8406						'libdir=s' => \$libdir,
8407	0			0	0	'gnu' => sub { set_strictness ('gnu'); },
8408	0			0	0	'gnits' => sub { set_strictness ('gnits'); },
8409	0			0	0	'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8410	0			0	0	'foreign' => sub { set_strictness ('foreign'); },
8411	0			0	0	'include-deps' => sub { unset_global_option ('no-dependencies'); },
8412	0			0	0	'i\|ignore-deps' => sub { set_global_option ('no-dependencies',
8413						$cli_where); },
8414	0			0	0	'no-force' => sub { $force_generation = 0; },
8415						'f\|force-missing' => \$force_missing,
8416						'o\|output-dir=s' => \$output_directory,
8417						'a\|add-missing' => \$add_missing,
8418						'c\|copy' => \$copy_missing,
8419	0			0	0	'v\|verbose' => sub { setup_channel 'verb', silent => 0; },
8420						'W\|warnings=s' => \&parse_warnings,
8421						# These long options (--Werror and --Wno-error) for backward
8422						# compatibility. Use -Werror and -Wno-error today.
8423	0			0	0	'Werror' => sub { parse_warnings 'W', 'error'; },
8424	0			0	0	'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8425	1				37	);
8426	1 1 1			1	17 2 4	use Getopt::Long;
8427	1				6	Getopt::Long::config ("bundling", "pass_through");
8428
8429						# See if --version or --help is used. We want to process these before
8430						# anything else because the GNU Coding Standards require us to
8431						# `exit 0' after processing these options, and we can't guarantee this
8432						# if we treat other options first. (Handling other options first
8433						# could produce error diagnostics, and in this condition it is
8434						# confusing if Automake does `exit 0'.)
8435						my %cli_options_1st_pass =
8436						(
8437						'version' => \&version,
8438						'help' => \&usage,
8439						# Recognize all other options (and their arguments) but do nothing.
8440	1 16 0			0	113 55 0	map { $_ => sub {} } (keys %cli_options)
8441						);
8442	1				5	my @ARGV_backup = @ARGV;
8443	1	0			6	Getopt::Long::GetOptions %cli_options_1st_pass
8444						or exit 1;
8445	0					@ARGV = @ARGV_backup;
8446
8447						# Now really process the options. This time we know that --help
8448						# and --version are not present, but we specify them nonetheless so
8449						# that ambiguous abbreviation are diagnosed.
8450	0 0			0		Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
8451	0	0				or exit 1;
8452
8453	0	0				if (defined $output_directory)
8454						{
8455	0					msg 'obsolete', "`--output-dir' is deprecated\n";
8456						}
8457						else
8458						{
8459						# In the next release we'll remove this entirely.
8460	0					$output_directory = '.';
8461						}
8462
8463	0	0				return unless @ARGV;
8464
8465	0	0				if ($ARGV[0] =~ /^-./)
8466						{
8467	0					my %argopts;
8468	0					for my $k (keys %cli_options)
8469						{
8470	0	0				if ($k =~ /(.*)=s$/)
8471						{
8472	0 0	0				map { $argopts{(length ($_) == 1)
8473						? "-$_" : "--$_" } = 1; } (split (/\\|/, $1));
8474						}
8475						}
8476	0	0 0				if ($ARGV[0] eq '--')
8477						{
8478	0					shift @ARGV;
8479						}
8480						elsif (exists $argopts{$ARGV[0]})
8481						{
8482	0					fatal ("option `$ARGV[0]' requires an argument\n"
8483						. "Try `$0 --help' for more information.");
8484						}
8485						else
8486						{
8487	0					fatal ("unrecognized option `$ARGV[0]'.\n"
8488						. "Try `$0 --help' for more information.");
8489						}
8490						}
8491
8492	0					my $errspec = 0;
8493	0					foreach my $arg (@ARGV)
8494						{
8495	0	0				fatal ("empty argument\nTry `$0 --help' for more information.")
8496						if ($arg eq '');
8497
8498						# Handle $local:$input syntax.
8499	0					my ($local, @rest) = split (/:/, $arg);
8500	0	0				@rest = ("$local.in",) unless @rest;
8501	0					my $input = locate_am @rest;
8502	0	0				if ($input)
8503						{
8504	0					push @input_files, $input;
8505	0					$output_files{$input} = join (':', ($local, @rest));
8506						}
8507						else
8508						{
8509	0					error "no Automake input file found for `$arg'";
8510	0					$errspec = 1;
8511						}
8512						}
8513	0	0	0			fatal "no input file found among supplied arguments"
8514						if $errspec && ! @input_files;
8515						}
8516
8517
8518						# handle_makefile ($MAKEFILE_IN)
8519						# ------------------------------
8520						# Deal with $MAKEFILE_IN.
8521						sub handle_makefile ($)
8522						{
8523	0			0		my ($file) = @_;
8524	0					($am_file = $file) =~ s/\.in$//;
8525	0	0				if (! -f ($am_file . '.am'))
8526						{
8527	0					error "`$am_file.am' does not exist";
8528						}
8529						else
8530						{
8531						# Any warning setting now local to this Makefile.am.
8532	0					dup_channel_setup;
8533
8534	0					generate_makefile ($am_file . '.am', $file);
8535
8536						# Back out any warning setting.
8537	0					drop_channel_setup;
8538						}
8539						}
8540
8541						# handle_makefiles_serial ()
8542						# --------------------------
8543						# Deal with all makefiles, without threads.
8544						sub handle_makefiles_serial ()
8545						{
8546	0			0		foreach my $file (@input_files)
8547						{
8548	0					handle_makefile ($file);
8549						}
8550						}
8551
8552						# get_number_of_threads ()
8553						# ------------------------
8554						# Logic for deciding how many worker threads to use.
8555						sub get_number_of_threads
8556						{
8557	0		0	0		my $nthreads = $ENV{'AUTOMAKE_JOBS'} \|\| 0;
8558
8559	0	0				$nthreads = 0
8560						unless $nthreads =~ /^[0-9]+$/;
8561
8562						# It doesn't make sense to use more threads than makefiles,
8563	0					my $max_threads = @input_files;
8564
8565						# but a single worker thread is helpful for exposing bugs.
8566	0	0	0			if ($automake_will_process_aux_dir && $max_threads > 1)
8567						{
8568	0					$max_threads--;
8569						}
8570	0	0				if ($nthreads > $max_threads)
8571						{
8572	0					$nthreads = $max_threads;
8573						}
8574	0					return $nthreads;
8575						}
8576
8577						# handle_makefiles_threaded ($NTHREADS)
8578						# -------------------------------------
8579						# Deal with all makefiles, using threads. The general strategy is to
8580						# spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8581						# worker threads push back everything that needs serialization:
8582						# * warning and (normal) error messages, for stable stderr output
8583						# order and content (avoiding duplicates, for example),
8584						# * races when installing aux files (and respective messages),
8585						# * races when collecting aux files for distribution.
8586						#
8587						# The latter requires that the makefile that deals with the aux dir
8588						# files be handled last, done by the master thread.
8589						sub handle_makefiles_threaded ($)
8590						{
8591	0			0		my ($nthreads) = @_;
8592
8593	0					my @queued_input_files = @input_files;
8594	0					my $last_input_file = undef;
8595	0	0				if ($automake_will_process_aux_dir)
8596						{
8597	0					$last_input_file = pop @queued_input_files;
8598						}
8599
8600						# The file queue distributes all makefiles, the message queues
8601						# collect all serializations needed for respective files.
8602	0					my $file_queue = Thread::Queue->new;
8603	0					my %msg_queues;
8604	0					foreach my $file (@queued_input_files)
8605						{
8606	0					$msg_queues{$file} = Thread::Queue->new;
8607						}
8608
8609	0					verb "spawning $nthreads worker threads";
8610	0					my @threads = (1 .. $nthreads);
8611	0					foreach my $t (@threads)
8612						{
8613						$t = threads->new (sub
8614						{
8615	0			0		while (my $file = $file_queue->dequeue)
8616						{
8617	0					verb "handling $file";
8618	0					my $queue = $msg_queues{$file};
8619	0					setup_channel_queue ($queue, QUEUE_MESSAGE);
8620	0					$required_conf_file_queue = $queue;
8621	0					handle_makefile ($file);
8622	0					$queue->enqueue (undef);
8623	0					setup_channel_queue (undef, undef);
8624	0					$required_conf_file_queue = undef;
8625						}
8626	0					return $exit_code;
8627	0					});
8628						}
8629
8630						# Queue all normal makefiles.
8631	0					verb "queuing " . @queued_input_files . " input files";
8632	0					$file_queue->enqueue (@queued_input_files, (undef) x @threads);
8633
8634						# Collect and process serializations.
8635	0					foreach my $file (@queued_input_files)
8636						{
8637	0					verb "dequeuing messages for " . $file;
8638	0					reset_local_duplicates ();
8639	0					my $queue = $msg_queues{$file};
8640	0					while (my $key = $queue->dequeue)
8641						{
8642	0	0 0				if ($key eq QUEUE_MESSAGE)
8643						{
8644	0					pop_channel_queue ($queue);
8645						}
8646						elsif ($key eq QUEUE_CONF_FILE)
8647						{
8648	0					require_queued_conf_file ($queue);
8649						}
8650						else
8651						{
8652	0					prog_error "unexpected key $key";
8653						}
8654						}
8655						}
8656
8657	0					foreach my $t (@threads)
8658						{
8659	0					my @exit_thread = $t->join;
8660	0	0				$exit_code = $exit_thread[0]
8661						if ($exit_thread[0] > $exit_code);
8662						}
8663
8664						# The master processes the last file.
8665	0	0				if ($automake_will_process_aux_dir)
8666						{
8667	0					verb "processing last input file";
8668	0					handle_makefile ($last_input_file);
8669						}
8670						}
8671
8672						################################################################
8673
8674						# Parse the WARNINGS environment variable.
8675	1				4	parse_WARNINGS;
8676
8677						# Parse command line.
8678	1				3	parse_arguments;
8679
8680	0				0	$configure_ac = require_configure_ac;
8681
8682						# Do configure.ac scan only once.
8683	0				0	scan_autoconf_files;
8684
8685	0	0			0	if (! @input_files)
8686						{
8687	0				0	my $msg = '';
8688	0	0			0	$msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8689						if -f 'Makefile.am';
8690	0				0	fatal ("no `Makefile.am' found for any configure output$msg");
8691						}
8692
8693	0				0	my $nthreads = get_number_of_threads ();
8694
8695	0	0	0		0	if ($perl_threads && $nthreads >= 1)
8696						{
8697	0				0	handle_makefiles_threaded ($nthreads);
8698						}
8699						else
8700						{
8701	0				0	handle_makefiles_serial ();
8702						}
8703
8704	0				0	exit $exit_code;
8705
8706
8707						### Setup "GNU" style for perl-mode and cperl-mode.
8708						## Local Variables:
8709						## perl-indent-level: 2
8710						## perl-continued-statement-offset: 2
8711						## perl-continued-brace-offset: 0
8712						## perl-brace-offset: 0
8713						## perl-brace-imaginary-offset: 0
8714						## perl-label-offset: -2
8715						## cperl-indent-level: 2
8716						## cperl-brace-offset: 0
8717						## cperl-continued-brace-offset: 0
8718						## cperl-label-offset: -2
8719						## cperl-extra-newline-before-brace: t
8720						## cperl-merge-trailing-else: nil
8721						## cperl-continued-statement-offset: 2
8722						## End: