Gnulib Module List

This is a list of the modules which make up gnulib, with dependencies.

Support for obsolete systems lacking ANSI C 89

stdlib	A GNU-like <stdlib.h>.
exit	exit function: program termination.
strtol	strtol function: convert string to `long`.
strtoul	strtoul function: convert string to `unsigned long`.
memcmp	memcmp function: compare memory areas.
memcpy	memcpy function: copy memory area.
memmove	memmove function: copy memory area.
memset	memset function: fill memory with a constant byte.
strcspn	strcspn function: search a string for any of a set of characters.
strpbrk	strpbrk function: search a string for any of a set of characters.

These modules are not listed among dependencies below, for simplicity. If your package requires portability to old, obsolete systems, you need to list these modules explicitly among the modules to import through gnulib-tool.

Support for systems lacking ANSI C 89

atexit	atexit function: register a function to be called at program termination.
strtod	strtod function: convert string to `double`.
strerror	strerror function: return string describing error code.
mktime	mktime function: convert broken-down time to linear time.

Enhancements for ANSI C 89 functions

Diagnostics <assert.h>

assert	Allow the installer to disable assertions through "configure --disable-assert".
verify	Compile-time assert-like macros.

Mathematics <math.h>

fpieee

Ensure IEEE compliant floating-point operations (overflow and division by zero).

Input/output <stdio.h>

fflush	Discard pending data on both input and output streams.
fseterr	Set the error indicator of a stream.
tmpfile	tmpfile function: create a temporary file.

Memory management functions <stdlib.h>

calloc	calloc function that is glibc compatible.
eealloc	Memory allocation with expensive empty allocations (glibc compatible).
free	Work around incompatibility on older systems where free (NULL) fails.
malloc	malloc function that is glibc compatible.
realloc	realloc function that is glibc compatible.
pagealign_alloc	Memory allocation aligned on page boundaries.

Sorting functions <stdlib.h>

mpsort

Sort a vector of pointers to data.

Date and time <time.h>

fprintftime	like nstrftime, but output the formatted date to a FILE* stream
strftime	nstrftime function: convert date and time to string, with GNU extensions.

Extra functions based on ANSI C 89

Memory management functions <stdlib.h>

xsize	Checked size_t computations.
xalloc	Memory allocation with out-of-memory checking. Also see xalloc-die.
xalloc-die	Report a memory allocation failure and exit.
alloca	Memory allocation on the stack.
alloca-opt	Memory allocation on the stack, as an optional optimization. It allows using the alloca macro if and only if the autoconf tests define HAVE_ALLOCA.
malloca	Safe automatic memory allocation.
xmalloca	Safe automatic memory allocation with out of memory checking.
xmemdup0	Copy a block of arbitrary bytes, and append a trailing NUL.
safe-alloc	A set of macros to make calls to alloc/calloc/realloc safer.

Integer arithmetic functions <stdlib.h>

count-one-bits	Counts the number of 1-bits in a word.
gcd	Greatest common divisor.
minmax	MIN, MAX macros.

Environment variables <stdlib.h>

putenv	putenv function: change or add an environment variable.
setenv	setenv function: set an environment variable.
unsetenv	unsetenv function: remove an environment variable.
xsetenv	xsetenv function: set an environment variable, with out-of-memory checking. unsetenv function: remove an environment variable.

Character handling <ctype.h>

c-ctype

Character handling in C locale.

String handling <string.h>

bcopy	Old BSD bcopy function: copy memory area.
memchr	memchr function: scan memory for a byte.
memchr2	memchr2 function: scan memory for the first of two bytes.
memmem	memmem function: efficiently locate first substring in a buffer.
memmem-simple	memmem function: locate first substring in a buffer.
mempcpy	mempcpy function: copy memory area, return point after last written byte.
memrchr	memrchr function: scan memory for a byte, from the right end.
rawmemchr	rawmemchr function: Find the first occurrence of C in S.
stpcpy	stpcpy function: copy a string, returning a pointer to its end.
stpncpy	stpncpy function: copy a size-bounded string, returning a pointer to its end.
c-strcase	Case-insensitive string comparison functions in C locale.
strcase	Case-insensitive string comparison functions.
c-strcaseeq	Optimized case-insensitive string comparison in C locale.
c-strcasestr	Efficient case-insensitive searching in a string in C locale.
strcasestr	strcasestr function: efficient case-insensitive search for unibyte substring.
strcasestr-simple	strcasestr function: case-insensitive search for unibyte substring.
strchrnul	strchrnul function: Find the first occurrence of C in S or the final NUL byte.
streq	Optimized string comparison.
strnlen	strnlen function: determine the length of a size-bounded string.
strnlen1	Quick string length estimation.
strndup	strndup function: duplicate a size-bounded string.
strsep	strsep function: extract token from string.
strstr	strstr function: efficiently locate first substring in a buffer.
strstr-simple	strstr function: locate first substring in a buffer.
c-strstr	Search for a substring in a string in C locale.
trim	trim function: remove leading and/or trailing whitespaces
fstrcmp	Fuzzy string comparison.
xstrndup	Duplicate a bounded initial segment of a string, with out-of-memory checking.

Mathematics <math.h>

printf-frexp

printf_frexp function: split a double into fraction and mantissa, for hexadecimal printf, without requiring libm.

Numeric conversion functions <stdlib.h>

c-strtod	Convert string to double in C locale.
c-strtold	Convert string to long double in C locale.
xstrtod	Convert string to `double`, with error checking.
xstrtol	Convert string to `long` or `unsigned long`, with error checking.
xstrtold	Convert string to `long double`, with error checking.

Date and time <time.h>

getdate	Convert a date/time string to linear time.
timegm	Convert calendar time to simple time, inverse of mktime.
tzset	tzset - initialize time conversion information

Input/Output <stdio.h>

unlocked-io	Enable faster, non-thread-safe stdio functions if available.
fwriteerror	Detect write error on a stream.
vasnprintf	vsprintf with automatic memory allocation and bounded output size.
vasprintf	vsprintf with automatic memory allocation.
xprintf	a wrapper around printf that calls error upon ENOMEM or EILSEQ errors
xvasprintf	vasprintf and asprintf with out-of-memory checking. Also see xalloc-die.

Signal handling <signal.h>

fatal-signal	Emergency actions in case of a fatal signal.
raise	Send a signal to the executing process.
strsignal	strsignal function: return string describing signal.

Command-line arguments

argmatch	Search for an exact or abbreviated match of a string in an array of strings.
argv-iter	iterate through argv or a --files0-from=-specified file
version-etc	Print --version and bug-reporting information in a consistent format.
version-etc-fsf	Copyright variable for FSF projects
long-options	Handle --help and --version options.

Container data structures

list	Abstract sequential list data type.
array-list	Sequential list data type implemented by an array.
carray-list	Sequential list data type implemented by a circular array.
linked-list	Sequential list data type implemented by a linked list.
avltree-list	Sequential list data type implemented by a binary tree.
rbtree-list	Sequential list data type implemented by a binary tree.
linkedhash-list	Sequential list data type implemented by a hash table with a linked list.
avltreehash-list	Sequential list data type implemented by a hash table with a binary tree.
rbtreehash-list	Sequential list data type implemented by a hash table with a binary tree.
sublist	Sequential list data type backed by another list.
oset	Abstract ordered set data type.
array-oset	Ordered set data type implemented by an array.
avltree-oset	Ordered set data type implemented by a binary tree.
rbtree-oset	Ordered set data type implemented by a binary tree.

Cryptographic computations (low-level)

crypto/arcfour	ARCFOUR stream cipher implementation
crypto/arctwo	ARCTWO block cipher implementation
crypto/des	DES block cipher.
crypto/hmac-md5	Compute hashed message authentication codes with MD5.
crypto/hmac-sha1	Compute hashed message authentication codes with SHA1.
crypto/md2	Compute MD2 checksum.
crypto/md4	Compute MD4 checksum.
crypto/md5	Compute MD5 checksum.
crypto/rijndael	Rijndael block cipher.
crypto/sha1	Compute SHA1 checksum.
crypto/sha256	Compute SHA224 and SHA256 checksums.
crypto/sha512	Compute SHA384 and SHA512 checksums.

Cryptographic computations (high-level)

crypto/gc	Core files for generic crypto package
crypto/gc-arcfour	Generic crypto wrappers for ARCFOUR stream cipher.
crypto/gc-arctwo	Generic crypto wrappers for ARCTWO block cipher.
crypto/gc-camellia	Generic crypto wrappers for Camellia block cipher.
crypto/gc-des	Generic crypto wrappers for DES block cipher.
crypto/gc-hmac-md5	Generic crypto wrappers for HMAC-MD5 functions.
crypto/gc-hmac-sha1	Generic crypto wrappers for HMAC-SHA1 functions.
crypto/gc-md2	Generic crypto wrappers for MD2 functions.
crypto/gc-md4	Generic crypto wrappers for MD4 functions.
crypto/gc-md5	Generic crypto wrappers for MD5 functions.
crypto/gc-pbkdf2-sha1	Password-Based Key Derivation Function according to PKCS#5/RFC2898
crypto/gc-random	Generic crypto random number functions.
crypto/gc-rijndael	Generic crypto wrappers for rijndael block cipher.
crypto/gc-sha1	Generic crypto wrappers for SHA-1 functions.

Compiler warning management

ignore-value

ignore a value to quiet a compiler warning

Misc

base64	Encode binary data using printable characters (base64).
check-version	Check version string compatibility.
crc	Compute cyclic redundancy codes.
diacrit	Decomposition of composed ISO-8859-1 characters.
diffseq	Compute the difference between two sequences.
getline	Read a line from a stream.
getdelim	Read character delimited data from a stream.
getnline	Read a line from a stream, with bounded memory allocation.
getndelim2	Read a line from a stream, stopping at one of 2 delimiters, with bounded memory allocation.
linebuffer	Read a line from a stream.
memxor	memxor function: binary exclusive or operation on two memory blocks
obstack	Memory allocation, optimized for stack-like allocation patterns.
obstack-printf	Formatted printing into an obstack.
obstack-printf-posix	POSIX formatted printing into an obstack.
hash-pjw	Compute a hash value for a NUL-terminated string.
hash	Parametrizable hash table.
readline	Simple implementation of readline.
readtokens	Read tokens from a stream.
readtokens0	Read NUL-separated tokens from a stream.
strverscmp	Compare strings holding version numbers.
filevercmp	compare version strings and version-containing file names

Support for systems lacking ISO C 99

Core language properties

flexmember	Flexible array member support
fpucw	Set the FPU control word, so as to allow correct `long double` computations.
func	Make sure __func__ is usable even on non-C99 platforms.
inline	Test for the `inline` keyword or equivalent.
longlong	Define HAVE_LONG_LONG_INT if `long long int` works.
vararrays	Variable-length arrays

Sizes of integer types <limits.h>

size_max Provide SIZE_MAX, for cases when the stdint module cannot be used.

Variable arguments <stdarg.h>

stdarg

An <stdarg.h> that conforms to C99.

Boolean type and values <stdbool.h>

stdbool

An <stdbool.h> that nearly conforms to C99. (Nearly: casts to bool may not work.)

Basic types <stddef.h>

stddef

A <stddef.h> that works around platform issues.

Integer types and values <stdint.h>

stdint

A <stdint.h> that nearly conforms to C99. Assumes typical host with 8-bit bytes, two's complement representation, and no padding or trap representations, with int widths equal to 8, 16, 32, and 64 bits. {uint,int}_fast{8,16,32,64}_t may not correspond to the fastest types available on the system. Macros are used instead of typedefs.

Input/output <stdio.h>

stdio	A GNU-like <stdio.h>.
snprintf	snprintf function: print formatted output to a fixed length string
vsnprintf	vsnprintf function: print formatted output from an stdarg argument list to a fixed length string

Numeric conversion functions <stdlib.h>

strtoll	strtoll function: convert string to `long long`.
strtoull	strtoull function: convert string to `unsigned long long`.

Functions for greatest-width integer types <inttypes.h>

imaxabs	imaxabs function: absolute value of `intmax_t`.
imaxdiv	imaxdiv function: division of `intmax_t`.
inttypes	An <inttypes.h> that nearly conforms to C99.
strtoimax	strtoimax function: convert string to `intmax_t`.
strtoumax	strtoumax function: convert string to `uintmax_t`.

Extended multibyte and wide character utilities <wchar.h>

wchar	A <wchar.h> that works around platform issues.
btowc	btowc function: convert unibyte character to wide character.
wctob	wctob function: convert wide character to unibyte character.
mbsinit	mbsinit function: test for initial conversion state.
mbrlen	mbrlen function: recognize multibyte character.
mbrtowc	mbrtowc function: convert multibyte character to wide character.
mbsrtowcs	mbsrtowcs function: convert string to wide string.
wcrtomb	wcrtomb function: convert wide character to multibyte character.
wcsrtombs	wcsrtombs function: convert wide string to string.

Wide character classification and mapping utilities <wctype.h>

wctype

A <wctype.h> that conforms better to C99.

Characteristics of floating types <float.h>

float

A correct <float.h>.

Mathematics <math.h>

ceil	ceil function: round towards positive infinity.
ceilf	ceilf function: round towards positive infinity.
ceill	ceill function: round towards positive infinity.
floor	floor function: round towards negative infinity.
floorf	floorf function: round towards negative infinity.
floorl	floorl function: round towards negative infinity.
frexp	frexp function: split a double into its constituents.
frexp-nolibm	frexp function: split a double into its constituents, without requiring libm.
frexpl	frexpl function: split a `long double` into its constituents.
frexpl-nolibm	frexpl function: split a `long double` into its constituents, without requiring libm.
isfinite	isfinite macro: test for finite value (zero, subnormal, or normal, and not infinite or NaN).
isinf	isinf macro: test for positive or negative infinity
isnan	isnan macro: test for NaN value.
isnanf	isnanf function: test for NaN.
isnanf-nolibm	isnanf function: test for NaN, without requiring libm.
isnand	isnand function: test for NaN.
isnand-nolibm	isnand function: test for NaN, without requiring libm.
isnanl	isnanl function: test for NaN.
isnanl-nolibm	isnanl function: test for NaN, without requiring libm.
ldexpl	ldexpl function: multiply a `long double` by a power of 2.
math	A GNU-like <math.h>.
mathl	C99 functions for transcendental functions with long double arguments.
round	round function: round toward nearest, breaking ties away from zero.
roundf	roundf function: round toward nearest, breaking ties away from zero.
roundl	roundl function: round toward nearest, breaking ties away from zero.
signbit	signbit macro: Determine the sign bit of a floating-point number.
trunc	trunc function: round towards zero.
truncf	truncf function: round towards zero.
truncl	truncl function: round towards zero.

intprops	Properties of integer types
inttostr	Convert integers to printable strings.
xstrtoimax	Convert string to `intmax_t`, with error checking.
xstrtoumax	Convert string to `uintmax_t`, with error checking.

Extended multibyte and wide character utilities <wchar.h>

mbchar	Multibyte character data type.
mbiter	Iterating through multibyte strings.
mbuiter	Iterating through multibyte strings.
mbfile	Multibyte character I/O.

Support for obsolete systems lacking POSIX:2008

strdup

strdup function: duplicate a string.

Support for systems lacking POSIX:2008

accept	accept function: accept a connection to a server socket.
arpa_inet	A GNU-like <arpa/inet.h>.
bind	bind function: bind a server socket to a port.
calloc-posix	calloc function: allocate memory with indefinite extent.
chown	chown function: change ownership of a file, following symlinks.
close	close function: close a file or socket.
connect	connect function: connect a client socket.
dup2	dup2 function: duplicate an open file descriptor.
environ	environ variable: storage of environment variables.
errno	A POSIX-like <errno.h>.
fchdir	fchdir function: change current directory, given an open file descriptor.
fclose	fclose function: close a stream.
fcntl-h	Like <fcntl.h>, but with non-working flags defined to 0.
flock	flock(2) function: advisory file locks.
fopen	fopen function: open a stream to a file.
fprintf-posix	POSIX compatible fprintf function: print formatted output to a stream
freopen	freopen function: open a stream to a file.
fseek	fseek function: Reposition a FILE stream.
fseeko	fseeko function: Reposition a FILE stream.
fsync	fsync(2) function: synchronize writes to a file.
ftell	ftell function: Retrieve the position of a FILE stream.
ftello	ftello function: Retrieve the position of a FILE stream.
ftruncate	ftruncate function: truncate an open file to a specified length.
futimens	Set file access and modification times of a file descriptor.
getaddrinfo	getaddrinfo function: Get address information.
getcwd	Return the current working directory.
getgroups	getgroups function: return the supplementary group IDs of the current process.
gethostname	gethostname function: Return machine's hostname.
getlogin_r	getlogin_r function: Get user name to a buffer allocated by the caller.
getpeername	getpeername function: return information about the remote end of a connected socket.
getsockname	getsockname function: return information about the local end of a connected socket.
getsockopt	getsockopt function: retrieve optional settings on a socket.
getsubopt	getsubopt: Parse comma separated list into words.
gettimeofday	gettimeofday function: return current time.
hostent	Library containing gethostent what?? If you mean a function, please say so., sethostent what?? If you mean a function, please say so., endhostent what?? If you mean a function, please say so., gethostbyname what?? If you mean a function, please say so., gethostbyaddr what?? If you mean a function, please say so..
iconv_open	Character set conversion.
inet_ntop	Convert internet address from internal to printable, presentable format.
inet_pton	Convert internet address from presentation to internal, binary, format.
link	link function: create a new link for an existing file
linkat	linkat what?? If you mean a function, please say so.: create a hard link, relative to two directories
listen	listen function: make a server socket ready for accepting connections.
locale	A <locale.h> that conforms to POSIX.
lseek	lseek function: Reposition a file descriptor.
lstat	lstat function: return information about a file or symbolic link.
malloc-posix	malloc function: allocate memory with indefinite extent.
mbsnrtowcs	mbsnrtowcs function: convert string to wide string.
mkdir	mkdir function: create a directory.
mkdtemp	mkdtemp function: create a private temporary directory.
mkstemp	mkstemp function: create a private temporary file.
netdb	A <netdb.h> for systems lacking it.
netinet_in	A <netinet/in.h> for systems lacking it.
open	open function: open a descriptor to a file.
perror	perror function: print a message describing error code.
poll	poll function: wait for some event on a set of file descriptors.
popen	popen function: open a stream to a shell command.
posix_spawn	posix_spawn function: create a child process.
posix_spawnattr_destroy	posix_spawnattr_destroy function: free a child process attributes specification.
posix_spawnattr_getflags	posix_spawnattr_getflags function: get bitmask of attributes specified for child process.
posix_spawnattr_getpgroup	posix_spawnattr_getpgroup function: get process group specified for child process.
posix_spawnattr_getschedparam	posix_spawnattr_getschedparam function: get the scheduling parameters specified for child process.
posix_spawnattr_getschedpolicy	posix_spawnattr_getschedpolicy function: get the scheduling policy specified for child process.
posix_spawnattr_getsigdefault	posix_spawnattr_getsigdefault function: get the set of signals with initially the default handler specified for child process.
posix_spawnattr_getsigmask	posix_spawnattr_getsigmask function: get the set of initially blocked signals specified for child process.
posix_spawnattr_init	posix_spawnattr_init function: initialize child process attributes specification.
posix_spawnattr_setflags	posix_spawnattr_setflags function: specify bitmask of attributes for child process.
posix_spawnattr_setpgroup	posix_spawnattr_setpgroup function: specify process group for child process.
posix_spawnattr_setschedparam	posix_spawnattr_setschedparam function: specify the scheduling parameters for child process.
posix_spawnattr_setschedpolicy	posix_spawnattr_setschedpolicy function: specify the scheduling policy for child process.
posix_spawnattr_setsigdefault	posix_spawnattr_setsigdefault function:get the specify of signals with initially the default handler for child process.
posix_spawnattr_setsigmask	posix_spawnattr_setsigmask function: specify the set of initially blocked signals for child process.
posix_spawn_file_actions_addclose	posix_spawn_file_actions_addclose function: augment a child process actions specification.
posix_spawn_file_actions_adddup2	posix_spawn_file_actions_adddup2 function: augment a child process actions specification.
posix_spawn_file_actions_addopen	posix_spawn_file_actions_addopen function: augment a child process actions specification.
posix_spawn_file_actions_destroy	posix_spawn_file_actions_destroy function: free a child process actions specification.
posix_spawn_file_actions_init	posix_spawn_file_actions_init function: initialize child process actions specification.
posix_spawn-internal	posix_spawn internals.
posix_spawnp	posix_spawnp function: create a child process.
printf-posix	POSIX compatible printf function: print formatted output to standard output
pthread	Implement a trivial subset of the pthreads library.
readlink	readlink function: read the value of a symbolic link.
realloc-posix	realloc function: allocate memory with indefinite extent.
recv	recv function: receive (read) data from a connected socket.
recvfrom	recvfrom function: receive (read) data from a potentially unconnected socket.
remove	remove what?? If you mean a function, please say so.: remove a file or directory
sched	A <sched.h> include file.
select	select function: synchronous I/O multiplexing.
send	send function: send (write) data to a connected socket.
sendto	sendto function: send (write) data to a potentially unconnected socket.
setsockopt	setsockopt function: specify optional settings on a socket.
shutdown	shutdown function: initiate a graceful shutdown of a socket.
signal	A GNU-like <signal.h>.
sleep	sleep function: pause execution of the current thread.
snprintf-posix	POSIX compatible snprintf function: print formatted output to a fixed length string
socket	socket function: create a socket.
spawn	A POSIX compliant <spawn.h>.
sprintf-posix	POSIX compatible sprintf function: print formatted output to a string
stat	stat what?? If you mean a function, please say so.: query file information
strdup-posix	strdup function: duplicate a string.
string	A GNU-like <string.h>.
strings	A substitute <strings.h>.
tempname	gen_tempname function: create a private temporary file or directory.
time	A more-standard <time.h>.
time_r	Reentrant time functions like localtime_r.
times	times function: get process times
timespec	timespec-related declarations
nanosleep	nanosleep function: pause execution for a specified time.
regex	Regular expression matching.
rename	rename function: change the name or location of a file.
renameat	renameat what?? If you mean a function, please say so.: rename a file, relative to two directories
rmdir	rmdir function: delete a directory.
search	A GNU-like <search.h>.
sigaction	POSIX compatible signal handlers.
sigprocmask	POSIX compatible signal blocking.
socklen	Declare socklen_t in config.h if the system doesn't have it.
ssize_t	Define ssize_t if it does not already exist.
strptime	Convert a string representation of time to a tm structure.
strtok_r	strtok_r function: split string into tokens, thread safe.
sys_select	A <sys/select.h> for systems lacking it.
sys_socket	A POSIX-like <sys/socket.h>.
sys_stat	A <sys/stat.h> for systems with missing declarations.
sys_time	A <sys/time.h> that conforms better to POSIX.
sys_times	A <sys/times.h> for systems lacking it.
sys_wait	A <sys/wait.h> for systems with missing declarations.
tsearch	Binary tree data structure.
unistd	A GNU-like <unistd.h>.
unlink	unlink what?? If you mean a function, please say so.: remove a file.
utime	utime function: change access and/or modification times of a file.
utimensat	Set file access and modification times of a file relative to a directory fd.
vasnprintf-posix	POSIX compatible vsprintf with automatic memory allocation and bounded output size.
vasprintf-posix	POSIX compatible vsprintf with automatic memory allocation.
vfprintf-posix	POSIX compatible vfprintf function: print formatted output to a stream
vprintf-posix	POSIX compatible vprintf function: print formatted output to standard output
vsnprintf-posix	POSIX compatible vsnprintf function: print formatted output to a fixed length string
vsprintf-posix	POSIX compatible vsprintf function: print formatted output to a string
wcsnrtombs	wcsnrtombs function: convert wide string to string.
wcwidth	Determine the number of screen columns needed for a character.
write	POSIX compatible write function: write data to a file descriptor

Compatibility checks for POSIX:2008 functions

clock-time	Check for clock_gettime and clock_settime.
d-ino	Check whether struct dirent has a member named d_ino.
d-type	Check whether struct dirent has a member named d_type.
link-follow	Determine whether link("symlink", "foo") follows the symlink.
rename-dest-slash	rename function: change the name or location of a file.
rmdir-errno	rmdir errno for nonempty directories
unlink-busy	Test whether a running program can be unlinked.
winsz-ioctl	Test whether use of TIOCGWINSZ requires sys/ioctl.h.
winsz-termios	Test whether use of TIOCGWINSZ requires termios.h.

Enhancements for POSIX:2008 functions

chdir-long	chdir-like function that tries not to fail due to ENAMETOOLONG
dirent-safer	Directory functions that avoid clobbering STD{IN,OUT,ERR}_FILENO.
dirname	Extract specific portions of filenames.
dirname-lgpl	Extract specific portions of filenames.
getopt	Process command line arguments.
iconv_open-utf	Character set conversion support for UTF-{16,32}{BE,LE} encodings.
unistd-safer	File descriptor functions that avoid clobbering STD{IN,OUT,ERR}_FILENO.
fnmatch	fnmatch function: wildcard matching.
fnmatch-posix	fnmatch function: wildcard matching.
fnmatch-gnu	fnmatch function: wildcard matching, with GNU extensions.
glob	glob function: Search for files and directories with paths matching a pattern, with GNU extensions.
exclude	Manage list of filenames or wildcard patterns for --exclude option processing.

Extra functions based on POSIX:2008

Input/output

xprintf-posix	A wrapper around printf with POSIX compatible format string interpretation, that calls error upon ENOMEM or EILSEQ errors.
xvasprintf-posix	vasprintf and asprintf with POSIX compatible format string interpretation and with out-of-memory checking. Also see xalloc-die.

Numeric conversion functions

human

Convert a number (usually a file size) to a human readable string, possibly with K/M/G suffix.

File system functions

acl	Access control lists of files. (Unportable.)
areadlink	Reading symbolic links without size limitation.
areadlink-with-size	Return the contents of a symbolic link, without size limitations.
areadlinkat	Reading symbolic links without size limitation, relative to fd.
areadlinkat-with-size	Read a symbolic link, without size limitations, relative to fd.
backupfile	Determination of the filename of a backup file, according to user environment variables.
canonicalize	Return the canonical absolute name of a given file.
canonicalize-lgpl	realpath, canonical_file_name: Provide canonical absolute file name
chdir-safer	like chdir, but safer
clean-temp	Temporary directories and temporary files with automatic cleanup.
copy-file	Copying of files.
fsusage	Return file system space usage info.
dirfd	Retrieving the file descriptor of an open directory stream. (Unportable.)
double-slash-root	Check whether // is distinct from /.
euidaccess	euidaccess function: check effective user's permissions for a file.
faccessat	faccessat function: check user's permissions for a file.
fdopendir	Open a directory stream from a file descriptor.
fdutimensat	Set file access and modification times, relative to a directory.
file-type	Return a string describing the type of a file.
fileblocks	Estimate number of blocks of a file, if `struct stat` doesn't have st_blocks.
filemode	Return a string (?rwxrwxrwx format) describing the type and permissions of a file.
filename	Basic filename support macros.
filenamecat	Concatenate two arbitrary file names.
filenamecat-lgpl	Concatenate two arbitrary file names.
fts	Traverse a file hierarchy.
fts-lgpl	Traverse a file hierarchy (LPGL'ed version).
isdir	Determine whether a directory exists.
lchmod	lchmod that is actually chmod (!) on hosts lacking lchmod
lchown	lchown function: change ownership of a file, without following symlinks.
mkancesdirs	Ensure the existence of the ancestor directories of a file.
mkfifoat	mkfifoat what?? If you mean a function, please say so. and mknodat what?? If you mean a function, please say so.: create named FIFOs relative to a directory
mkdir-p	Ensure that a directory and its parents exist.
mkostemp	mkostemp function: create a private temporary file, with specific opening flags.
mkostemps	mkostemps function: create a private temporary file, with specific opening flags, and with suffix.
mkstemps	mkstemps function: create a private temporary file, with suffix
modechange	Manipulation of mode changes specified by strings (e.g. as first argument of chmod utility).
mountlist	Return list of mounted file systems.
openat	Open a file at a directory.
openat-die	Report a save- or restore-cwd failure in our openat replacement and then exit.
pathmax	Return maximum size of reasonable pathnames. (Unportable: Hurd has no limit.)
read-file	read_file function: read the contents of a file into a string
same	Determine whether two file names refer to the same directory entry of the same directory.
save-cwd	Save and restore the current working directory.
savedir	Return the entries of a directory (just the names) as an argz string.
savewd	Save and restore the working directory, possibly using a child process.
stat-macros	stat-related macros
stat-time	stat-related time functions
symlink	symlink what?? If you mean a function, please say so.: create a symlink, if possible
symlinkat	symlinkat what?? If you mean a function, please say so. and readlinkat what?? If you mean a function, please say so.: manage symlinks relative to a directory
tmpdir	Determine a temporary directory.
unlinkdir	Determine whether we can unlink directories.
utimecmp	compare file time stamps
utimens	Set file access and modification times.
write-any-file	Determine whether we can write any file.
xgetcwd	Return the current working directory, without size limitations.
xreadlink	Reading symbolic links without size limitation.
xreadlinkat	Reading symbolic links without size limitation, relative to fd.

File system as inode set

cycle-check	help detect directory cycles efficiently
dev-ino	declare a simple (device, inode) struct
file-set	Very specialized set-of-files code.
hash-triple	Hash functions for file-related triples: name, device, inode.
i-ring	a simple ring buffer
same-inode	compare inodes

File descriptor based Input/Output

fcntl-safer	File descriptor functions that avoid clobbering STD{IN,OUT,ERR}_FILENO.
openat-safer	openat function that avoids clobbering std{in,out,err}.
safe-read	An interface to the read function that retries after interrupts.
safe-write	An interface to the write function that retries after interrupts.
full-read	An interface to the read function that reads all it is asked to read.
full-write	An interface to the write function that writes all it is asked to write.
binary-io	Binary mode I/O.
isapipe	Test whether a file descriptor is a pipe.

File stream based Input/Output

close-stream	Close a stream, with nicer error checking than fclose's.
closein	Close all standard streams, resetting seekable stdin if needed, and exiting with a diagnostic on error.
closeout	Close standard output and standard error, exiting with a diagnostic on error.
fbufmode	fbufmode function: Determine the buffering mode of a FILE stream.
fopen-safer	fopen function that avoids clobbering std{in,out,err}.
fpending	Determine the number of bytes waiting in the output buffer of a stream.
fpurge	fpurge function: Flush buffers.
freadable	freadable function: Determine whether a FILE stream supports reading.
freadahead	freadahead function: Determine the number of bytes waiting in the input buffer of a stream.
freading	freading function: Determine whether a FILE stream is currently doing reading.
freadptr	freadptr function: Pointer to the input buffer of a stream.
freadseek	freadseek function: Read and discard input from a stream.
freopen-safer	freopen function that avoids clobbering std{in,out,err}.
fwritable	fwritable function: Determine whether a FILE stream supports writing.
fwriting	fwriting function: Determine whether a FILE stream is currently doing writing.
getpass	getpass function: read a password from /dev/tty.
getpass-gnu	getpass function: read a password of arbitrary length from /dev/tty.
popen-safer	popen function that avoids clobbering std{in,out,err}.
stdlib-safer	File stream functions that avoid clobbering std{in,out,err}.
tmpfile-safer	tmpfile function that avoids clobbering std{in,out,err}.

Users and groups

getugroups	Return the group IDs of a user.
group-member	Determine whether the current process has the permissions of a given group ID.
idcache	Username <--> uid and groupname <--> gid conversions, with cache for speed.
userspec	Parse a `user:group' specifier (e.g. the first argument of chown utility).

Date and time

gethrxtime	Get high resolution real time.
gettime	Return current time, with nanosecond resolution.
settime	Set the current time, with nanosecond resolution.
posixtm	Convert a date/time string (POSIX syntax) to linear time or broken-down time.
xnanosleep	a more convenient interface to nanosleep

Networking functions

xgethostname	Return machine's hostname, without size limitations.
canon-host	Canonicalize a host name: return a name other hosts can understand, i.e. usually the host name including FQDN.
sockets	General facilities for using sockets

Multithreading

threadlib	Access to multithreading primitives.
lock	Locking in multithreaded situations.
tls	Thread-local storage in multithreaded situations.
thread	Creating and controlling threads.
yield	Yielding the processor to other threads.
cond	Condition variables for multithreading.
openmp	Detection of OpenMP support.

Signal handling

c-stack	Stack overflow handling, causing program exit.
libsigsegv	Handle page faults in user mode.
sig2str	Convert between signal names and signal numbers.
sigpipe-die	Report a SIGPIPE signal and exit.

Internationalization functions

gettext	Translate messages to user's native language.
gettext-h	Translate messages to user's native language if the gettext module is also used.
propername	Localization of proper names.
iconv	Character set conversion.
striconv	Character set conversion of strings made easy, uses iconv.
xstriconv	Character set conversion of strings made easy, uses iconv, with out-of-memory checking.
striconveh	Character set conversion of strings with error handling, uses iconv.
striconveha	Character set conversion of strings with error handling and autodetection, uses iconv.
localcharset	Return current locale's character encoding.
hard-locale	Determine whether the current locale is different from the "C" locale.
localename	Return current locale's name, according to glibc naming conventions.
mbslen	mbslen function: Determine the number of multibyte characters in a string.
mbsnlen	mbsnlen function: Determine the number of multibyte characters in a string.
mbschr	mbschr function: search a string for a character.
mbsrchr	mbsrchr function: search a string for a character, from the end.
mbsstr	mbsstr function: search for a substring in a string.
mbscasecmp	mbscasecmp function: case-insensitive string comparison.
mbsncasecmp	mbsncasecmp function: case-insensitive string prefix comparison.
mbspcasecmp	mbspcasecmp function: case-insensitive string prefix comparison.
mbscasestr	mbscasestr function: case-insensitive search for a substring in a string.
mbscspn	mbscspn function: search a string for any of a set of characters.
mbspbrk	mbspbrk function: search a string for any of a set of characters.
mbsspn	mbsspn function: search a string for any outside a set of characters.
mbssep	mbssep function: split string into tokens, thread safe.
mbstok_r	mbstok_r function: split string into tokens, thread safe.
mbswidth	Determine the number of screen columns needed for a string.
memcasecmp	Case-insensitive memory area comparison.
memcoll	Locale dependent memory area comparison.
xmemcoll	Locale dependent memory area comparison, with error checking.
unicodeio	Unicode character output to streams with locale dependent encoding.
rpmatch	Locale dependent classification of a response as matching "yes" or "no".
yesno	Read a response from the user, and its classification as matching "yes" or "no".
bison-i18n	Support for internationalization of bison-generated parsers.

Unicode string functions

libunistring	Unicode string functions.
unitypes	Base types for Unicode string functions.
ucs4-utf8	Conversion UCS-4 to UTF-8.
ucs4-utf16	Conversion UCS-4 to UTF-16.
utf8-ucs4-unsafe	Conversion UTF-8 to UCS-4.
utf16-ucs4-unsafe	Conversion UTF-16 to UCS-4.
utf8-ucs4	Conversion UTF-8 to UCS-4.
utf16-ucs4	Conversion UTF-16 to UCS-4.
unistr/base	Base layer for elementary Unicode string functions.
unistr/u8-to-u16	Convert UTF-8 string to UTF-16 string.
unistr/u8-to-u32	Convert UTF-8 string to UTF-32 string.
unistr/u16-to-u8	Convert UTF-16 string to UTF-8 string.
unistr/u16-to-u32	Convert UTF-16 string to UTF-32 string.
unistr/u32-to-u8	Convert UTF-32 string to UTF-8 string.
unistr/u32-to-u16	Convert UTF-32 string to UTF-16 string.
unistr/u8-check	Check UTF-8 string.
unistr/u16-check	Check UTF-16 string.
unistr/u32-check	Check UTF-32 string.
unistr/u8-chr	Search character in piece of UTF-8 string.
unistr/u16-chr	Search character in piece of UTF-16 string.
unistr/u32-chr	Search character in piece of UTF-32 string.
unistr/u8-cmp	Compare pieces of UTF-8 strings.
unistr/u16-cmp	Compare pieces of UTF-16 strings.
unistr/u32-cmp	Compare pieces of UTF-32 strings.
unistr/u8-cpy	Copy piece of UTF-8 string.
unistr/u16-cpy	Copy piece of UTF-16 string.
unistr/u32-cpy	Copy piece of UTF-32 string.
unistr/u8-cpy-alloc	Copy piece of UTF-8 string.
unistr/u16-cpy-alloc	Copy piece of UTF-16 string.
unistr/u32-cpy-alloc	Copy piece of UTF-32 string.
unistr/u8-endswith	Substring test for UTF-8 strings.
unistr/u16-endswith	Substring test for UTF-16 strings.
unistr/u32-endswith	Substring test for UTF-32 strings.
unistr/u8-mblen	Look at first character in UTF-8 string.
unistr/u16-mblen	Look at first character in UTF-16 string.
unistr/u32-mblen	Look at first character in UTF-32 string.
unistr/u8-mbsnlen	Count characters in UTF-8 string.
unistr/u16-mbsnlen	Count characters in UTF-16 string.
unistr/u32-mbsnlen	Count characters in UTF-32 string.
unistr/u8-mbtouc-unsafe	Look at first character in UTF-8 string.
unistr/u16-mbtouc-unsafe	Look at first character in UTF-16 string.
unistr/u32-mbtouc-unsafe	Look at first character in UTF-32 string.
unistr/u8-mbtouc	Look at first character in UTF-8 string.
unistr/u16-mbtouc	Look at first character in UTF-16 string.
unistr/u32-mbtouc	Look at first character in UTF-32 string.
unistr/u8-mbtoucr	Look at first character in UTF-8 string, returning an error code upon failure.
unistr/u16-mbtoucr	Look at first character in UTF-16 string, returning an error code upon failure.
unistr/u32-mbtoucr	Look at first character in UTF-32 string, returning an error code upon failure.
unistr/u8-move	Copy piece of UTF-8 string.
unistr/u16-move	Copy piece of UTF-16 string.
unistr/u32-move	Copy piece of UTF-32 string.
unistr/u8-next	Iterate over next character in UTF-8 string.
unistr/u16-next	Iterate over next character in UTF-16 string.
unistr/u32-next	Iterate over next character in UTF-32 string.
unistr/u8-prev	Iterate over previous character in UTF-8 string.
unistr/u16-prev	Iterate over previous character in UTF-16 string.
unistr/u32-prev	Iterate over previous character in UTF-32 string.
unistr/u8-set	Fill UTF-8 string.
unistr/u16-set	Fill UTF-16 string.
unistr/u32-set	Fill UTF-32 string.
unistr/u8-startswith	Substring test for UTF-8 strings.
unistr/u16-startswith	Substring test for UTF-16 strings.
unistr/u32-startswith	Substring test for UTF-32 strings.
unistr/u8-stpcpy	Copy UTF-8 string.
unistr/u16-stpcpy	Copy UTF-16 string.
unistr/u32-stpcpy	Copy UTF-32 string.
unistr/u8-stpncpy	Copy UTF-8 string.
unistr/u16-stpncpy	Copy UTF-16 string.
unistr/u32-stpncpy	Copy UTF-32 string.
unistr/u8-strcat	Concatenate UTF-8 strings.
unistr/u16-strcat	Concatenate UTF-16 strings.
unistr/u32-strcat	Concatenate UTF-32 strings.
unistr/u8-strchr	Search character in UTF-8 string.
unistr/u16-strchr	Search character in UTF-16 string.
unistr/u32-strchr	Search character in UTF-32 string.
unistr/u8-strcmp	Compare UTF-8 strings.
unistr/u16-strcmp	Compare UTF-16 strings.
unistr/u32-strcmp	Compare UTF-32 strings.
unistr/u8-strcpy	Copy UTF-8 string.
unistr/u16-strcpy	Copy UTF-16 string.
unistr/u32-strcpy	Copy UTF-32 string.
unistr/u8-strcspn	Search for some characters in UTF-8 string.
unistr/u16-strcspn	Search for some characters in UTF-16 string.
unistr/u32-strcspn	Search for some characters in UTF-32 string.
unistr/u8-strdup	Copy UTF-8 string.
unistr/u16-strdup	Copy UTF-16 string.
unistr/u32-strdup	Copy UTF-32 string.
unistr/u8-strlen	Determine length of UTF-8 string.
unistr/u16-strlen	Determine length of UTF-16 string.
unistr/u32-strlen	Determine length of UTF-32 string.
unistr/u8-strmblen	Look at first character in UTF-8 string.
unistr/u16-strmblen	Look at first character in UTF-16 string.
unistr/u32-strmblen	Look at first character in UTF-32 string.
unistr/u8-strmbtouc	Look at first character in UTF-8 string.
unistr/u16-strmbtouc	Look at first character in UTF-16 string.
unistr/u32-strmbtouc	Look at first character in UTF-32 string.
unistr/u8-strncat	Concatenate UTF-8 strings.
unistr/u16-strncat	Concatenate UTF-16 strings.
unistr/u32-strncat	Concatenate UTF-32 strings.
unistr/u8-strncmp	Compare UTF-8 strings.
unistr/u16-strncmp	Compare UTF-16 strings.
unistr/u32-strncmp	Compare UTF-32 strings.
unistr/u8-strncpy	Copy UTF-8 string.
unistr/u16-strncpy	Copy UTF-16 string.
unistr/u32-strncpy	Copy UTF-32 string.
unistr/u8-strnlen	Determine bounded length of UTF-8 string.
unistr/u16-strnlen	Determine bounded length of UTF-16 string.
unistr/u32-strnlen	Determine bounded length of UTF-32 string.
unistr/u8-strpbrk	Search for some characters in UTF-8 string.
unistr/u16-strpbrk	Search for some characters in UTF-16 string.
unistr/u32-strpbrk	Search for some characters in UTF-32 string.
unistr/u8-strrchr	Search character in UTF-8 string.
unistr/u16-strrchr	Search character in UTF-16 string.
unistr/u32-strrchr	Search character in UTF-32 string.
unistr/u8-strspn	Search for some characters in UTF-8 string.
unistr/u16-strspn	Search for some characters in UTF-16 string.
unistr/u32-strspn	Search for some characters in UTF-32 string.
unistr/u8-strstr	Substring test for UTF-8 strings.
unistr/u16-strstr	Substring test for UTF-16 strings.
unistr/u32-strstr	Substring test for UTF-32 strings.
unistr/u8-strtok	Tokenize UTF-8 string.
unistr/u16-strtok	Tokenize UTF-16 string.
unistr/u32-strtok	Tokenize UTF-32 string.
unistr/u8-uctomb	Store a character in UTF-8 string.
unistr/u16-uctomb	Store a character in UTF-16 string.
unistr/u32-uctomb	Store a character in UTF-32 string.
uniconv/base	Base layer for conversion from/to legacy encodings.
uniconv/u8-conv-from-enc	Conversion to UTF-8 from legacy encodings.
uniconv/u16-conv-from-enc	Conversion to UTF-16 from legacy encodings.
uniconv/u32-conv-from-enc	Conversion to UTF-32 from legacy encodings.
uniconv/u8-conv-to-enc	Conversion from UTF-8 to legacy encodings.
uniconv/u16-conv-to-enc	Conversion from UTF-16 to legacy encodings.
uniconv/u32-conv-to-enc	Conversion from UTF-32 to legacy encodings.
uniconv/u8-strconv-from-enc	Conversion to UTF-8 from legacy encodings.
uniconv/u16-strconv-from-enc	Conversion to UTF-16 from legacy encodings.
uniconv/u32-strconv-from-enc	Conversion to UTF-32 from legacy encodings.
uniconv/u8-strconv-to-enc	Conversion from UTF-8 to legacy encodings.
uniconv/u16-strconv-to-enc	Conversion from UTF-16 to legacy encodings.
uniconv/u32-strconv-to-enc	Conversion from UTF-32 to legacy encodings.
uniconv/u8-strconv-from-locale	Conversion to UTF-8 from the locale encoding.
uniconv/u16-strconv-from-locale	Conversion to UTF-16 from the locale encoding.
uniconv/u32-strconv-from-locale	Conversion to UTF-32 from the locale encoding.
uniconv/u8-strconv-to-locale	Conversion from UTF-8 to the locale encoding.
uniconv/u16-strconv-to-locale	Conversion from UTF-16 to the locale encoding.
uniconv/u32-strconv-to-locale	Conversion from UTF-32 to the locale encoding.
unistdio/base	Base layer for formatted output to strings.
unistdio/u-printf-args	Fetching a printf argument list.
unistdio/ulc-asnprintf	Formatted output to a string, with automatic memory allocation and bounded output size.
unistdio/ulc-asprintf	Formatted output to a string, with automatic memory allocation.
unistdio/ulc-fprintf	Print formatted output to a stream.
unistdio/ulc-printf-parse	Parsing an ASCII format string.
unistdio/ulc-snprintf	Formatted output to a fixed-length string.
unistdio/ulc-sprintf	Formatted output to a string.
unistdio/ulc-vasnprintf	Formatted output to strings.
unistdio/ulc-vasprintf	Formatted output to a string, with automatic memory allocation.
unistdio/ulc-vfprintf	Print formatted output to a stream.
unistdio/ulc-vsnprintf	Formatted output to a fixed-length string.
unistdio/ulc-vsprintf	Formatted output to a string.
unistdio/u8-asnprintf	Formatted output to an UTF-8 string, with automatic memory allocation and bounded output size.
unistdio/u8-asprintf	Formatted output to an UTF-8 string, with automatic memory allocation.
unistdio/u8-printf-parse	Parsing an UTF-8 format string.
unistdio/u8-snprintf	Formatted output to a fixed-length UTF-8 string.
unistdio/u8-sprintf	Formatted output to an UTF-8 string.
unistdio/u8-vasnprintf	Formatted output to UTF-8 strings.
unistdio/u8-vasprintf	Formatted output to an UTF-8 string, with automatic memory allocation.
unistdio/u8-vsnprintf	Formatted output to a fixed-length UTF-8 string.
unistdio/u8-vsprintf	Formatted output to an UTF-8 string.
unistdio/u8-u8-asnprintf	Formatted output to an UTF-8 string, with automatic memory allocation and bounded output size.
unistdio/u8-u8-asprintf	Formatted output to an UTF-8 string, with automatic memory allocation.
unistdio/u8-u8-snprintf	Formatted output to a fixed-length UTF-8 string.
unistdio/u8-u8-sprintf	Formatted output to an UTF-8 string.
unistdio/u8-u8-vasnprintf	Formatted output to UTF-8 strings.
unistdio/u8-u8-vasprintf	Formatted output to an UTF-8 string, with automatic memory allocation.
unistdio/u8-u8-vsnprintf	Formatted output to a fixed-length UTF-8 string.
unistdio/u8-u8-vsprintf	Formatted output to an UTF-8 string.
unistdio/u16-asnprintf	Formatted output to an UTF-16 string, with automatic memory allocation and bounded output size.
unistdio/u16-asprintf	Formatted output to an UTF-16 string, with automatic memory allocation.
unistdio/u16-printf-parse	Parsing an UTF-16 format string.
unistdio/u16-snprintf	Formatted output to a fixed-length UTF-16 string.
unistdio/u16-sprintf	Formatted output to an UTF-16 string.
unistdio/u16-vasnprintf	Formatted output to UTF-16 strings.
unistdio/u16-vasprintf	Formatted output to an UTF-16 string, with automatic memory allocation.
unistdio/u16-vsnprintf	Formatted output to a fixed-length UTF-16 string.
unistdio/u16-vsprintf	Formatted output to an UTF-16 string.
unistdio/u16-u16-asnprintf	Formatted output to an UTF-16 string, with automatic memory allocation and bounded output size.
unistdio/u16-u16-asprintf	Formatted output to an UTF-16 string, with automatic memory allocation.
unistdio/u16-u16-snprintf	Formatted output to a fixed-length UTF-16 string.
unistdio/u16-u16-sprintf	Formatted output to an UTF-16 string.
unistdio/u16-u16-vasnprintf	Formatted output to UTF-16 strings.
unistdio/u16-u16-vasprintf	Formatted output to an UTF-16 string, with automatic memory allocation.
unistdio/u16-u16-vsnprintf	Formatted output to a fixed-length UTF-16 string.
unistdio/u16-u16-vsprintf	Formatted output to an UTF-16 string.
unistdio/u32-asnprintf	Formatted output to an UTF-32 string, with automatic memory allocation and bounded output size.
unistdio/u32-asprintf	Formatted output to an UTF-32 string, with automatic memory allocation.
unistdio/u32-printf-parse	Parsing an UTF-32 format string.
unistdio/u32-snprintf	Formatted output to a fixed-length UTF-32 string.
unistdio/u32-sprintf	Formatted output to an UTF-32 string.
unistdio/u32-vasnprintf	Formatted output to UTF-32 strings.
unistdio/u32-vasprintf	Formatted output to an UTF-32 string, with automatic memory allocation.
unistdio/u32-vsnprintf	Formatted output to a fixed-length UTF-32 string.
unistdio/u32-vsprintf	Formatted output to an UTF-32 string.
unistdio/u32-u32-asnprintf	Formatted output to an UTF-32 string, with automatic memory allocation and bounded output size.
unistdio/u32-u32-asprintf	Formatted output to an UTF-32 string, with automatic memory allocation.
unistdio/u32-u32-snprintf	Formatted output to a fixed-length UTF-32 string.
unistdio/u32-u32-sprintf	Formatted output to an UTF-32 string.
unistdio/u32-u32-vasnprintf	Formatted output to UTF-32 strings.
unistdio/u32-u32-vasprintf	Formatted output to an UTF-32 string, with automatic memory allocation.
unistdio/u32-u32-vsnprintf	Formatted output to a fixed-length UTF-32 string.
unistdio/u32-u32-vsprintf	Formatted output to an UTF-32 string.
uniname/base	Base layer for Unicode character names.
uniname/uniname	Association between Unicode characters and their names.
unictype/base	Base layer for Unicode classification and properties.
unictype/bidicategory-byname	Find a Unicode character bidi category, given its name.
unictype/bidicategory-name	Name of Unicode character bidi category.
unictype/bidicategory-of	Determine bidi category of a Unicode character.
unictype/bidicategory-test	Test whether a Unicode character belongs to a given bidi category.
unictype/bidicategory-all	Complete API for Unicode character bidi categories.
unictype/block-list	List of Unicode character blocks.
unictype/block-of	Determine block of a Unicode character.
unictype/block-test	Test whether a Unicode character belongs to a given Unicode block.
unictype/block-all	Complete API for blocks of Unicode characters.
unictype/category-C	Test whether a Unicode character is of general category C.
unictype/category-Cc	Test whether a Unicode character is of general category Cc.
unictype/category-Cf	Test whether a Unicode character is of general category Cf.
unictype/category-Cn	Test whether a Unicode character is of general category Cn.
unictype/category-Co	Test whether a Unicode character is of general category Co.
unictype/category-Cs	Test whether a Unicode character is of general category Cs.
unictype/category-L	Test whether a Unicode character is of general category L.
unictype/category-Ll	Test whether a Unicode character is of general category Ll.
unictype/category-Lm	Test whether a Unicode character is of general category Lm.
unictype/category-Lo	Test whether a Unicode character is of general category Lo.
unictype/category-Lt	Test whether a Unicode character is of general category Lt.
unictype/category-Lu	Test whether a Unicode character is of general category Lu.
unictype/category-M	Test whether a Unicode character is of general category M.
unictype/category-Mc	Test whether a Unicode character is of general category Mc.
unictype/category-Me	Test whether a Unicode character is of general category Me.
unictype/category-Mn	Test whether a Unicode character is of general category Mn.
unictype/category-N	Test whether a Unicode character is of general category N.
unictype/category-Nd	Test whether a Unicode character is of general category Nd.
unictype/category-Nl	Test whether a Unicode character is of general category Nl.
unictype/category-No	Test whether a Unicode character is of general category No.
unictype/category-P	Test whether a Unicode character is of general category P.
unictype/category-Pc	Test whether a Unicode character is of general category Pc.
unictype/category-Pd	Test whether a Unicode character is of general category Pd.
unictype/category-Pe	Test whether a Unicode character is of general category Pe.
unictype/category-Pf	Test whether a Unicode character is of general category Pf.
unictype/category-Pi	Test whether a Unicode character is of general category Pi.
unictype/category-Po	Test whether a Unicode character is of general category Po.
unictype/category-Ps	Test whether a Unicode character is of general category Ps.
unictype/category-S	Test whether a Unicode character is of general category S.
unictype/category-Sc	Test whether a Unicode character is of general category Sc.
unictype/category-Sk	Test whether a Unicode character is of general category Sk.
unictype/category-Sm	Test whether a Unicode character is of general category Sm.
unictype/category-So	Test whether a Unicode character is of general category So.
unictype/category-Z	Test whether a Unicode character is of general category Z.
unictype/category-Zl	Test whether a Unicode character is of general category Zl.
unictype/category-Zp	Test whether a Unicode character is of general category Zp.
unictype/category-Zs	Test whether a Unicode character is of general category Zs.
unictype/category-and	Intersection of categories of Unicode characters.
unictype/category-and-not	Set-difference of categories of Unicode characters.
unictype/category-byname	Find a Unicode character category, given its name.
unictype/category-name	Name of Unicode character category.
unictype/category-none	Empty category of Unicode characters.
unictype/category-of	Determine category of a Unicode character.
unictype/category-or	Union of categories of Unicode characters.
unictype/category-test	Test whether a Unicode character belongs to a given category.
unictype/category-test-withtable	Test whether a Unicode character belongs to a given bitmask of categories.
unictype/category-all	Complete API for Unicode character categories.
unictype/combining-class	Determine combining class of a Unicode character.
unictype/ctype-alnum	Generalization of the <ctype.h> isalnum function and the <wctype.h> iswalnum function.
unictype/ctype-alpha	Generalization of the <ctype.h> isalpha function and the <wctype.h> iswalpha function.
unictype/ctype-blank	Generalization of the <ctype.h> isblank function and the <wctype.h> iswblank function.
unictype/ctype-cntrl	Generalization of the <ctype.h> iscntrl function and the <wctype.h> iswcntrl function.
unictype/ctype-digit	Generalization of the <ctype.h> isdigit function and the <wctype.h> iswdigit function.
unictype/ctype-graph	Generalization of the <ctype.h> isgraph function and the <wctype.h> iswgraph function.
unictype/ctype-lower	Generalization of the <ctype.h> islower function and the <wctype.h> iswlower function.
unictype/ctype-print	Generalization of the <ctype.h> isprint function and the <wctype.h> iswprint function.
unictype/ctype-punct	Generalization of the <ctype.h> ispunct function and the <wctype.h> iswpunct function.
unictype/ctype-space	Generalization of the <ctype.h> isspace function and the <wctype.h> iswspace function.
unictype/ctype-upper	Generalization of the <ctype.h> isupper function and the <wctype.h> iswupper function.
unictype/ctype-xdigit	Generalization of the <ctype.h> isxdigit function and the <wctype.h> iswxdigit function.
unictype/decimal-digit	Value of a decimal digit Unicode character.
unictype/digit	Value of a digit Unicode character.
unictype/mirror	Mirrored Unicode characters.
unictype/numeric	Value of a numeric Unicode character.
unictype/property-alphabetic	Test whether a Unicode character is "alphabetic".
unictype/property-ascii-hex-digit	Test whether a Unicode character is "ascii hex digit".
unictype/property-bidi-arabic-digit	Test whether a Unicode character is "bidi arabic digit".
unictype/property-bidi-arabic-right-to-left	Test whether a Unicode character is "bidi arabic right to left".
unictype/property-bidi-block-separator	Test whether a Unicode character is "bidi block separator".
unictype/property-bidi-boundary-neutral	Test whether a Unicode character is "bidi boundary neutral".
unictype/property-bidi-common-separator	Test whether a Unicode character is "bidi common separator".
unictype/property-bidi-control	Test whether a Unicode character is "bidi control".
unictype/property-bidi-embedding-or-override	Test whether a Unicode character is "bidi embedding or override".
unictype/property-bidi-eur-num-separator	Test whether a Unicode character is "bidi eur num separator".
unictype/property-bidi-eur-num-terminator	Test whether a Unicode character is "bidi eur num terminator".
unictype/property-bidi-european-digit	Test whether a Unicode character is "bidi european digit".
unictype/property-bidi-hebrew-right-to-left	Test whether a Unicode character is "bidi hebrew right to left".
unictype/property-bidi-left-to-right	Test whether a Unicode character is "bidi left to right".
unictype/property-bidi-non-spacing-mark	Test whether a Unicode character is "bidi non spacing mark".
unictype/property-bidi-other-neutral	Test whether a Unicode character is "bidi other neutral".
unictype/property-bidi-pdf	Test whether a Unicode character is "bidi pdf".
unictype/property-bidi-segment-separator	Test whether a Unicode character is "bidi segment separator".
unictype/property-bidi-whitespace	Test whether a Unicode character is "bidi whitespace".
unictype/property-byname	Find a Unicode character property, given its name.
unictype/property-combining	Test whether a Unicode character is "combining".
unictype/property-composite	Test whether a Unicode character is "composite".
unictype/property-currency-symbol	Test whether a Unicode character is "currency symbol".
unictype/property-dash	Test whether a Unicode character is "dash".
unictype/property-decimal-digit	Test whether a Unicode character is "decimal digit".
unictype/property-default-ignorable-code-point	Test whether a Unicode character is "default ignorable code point".
unictype/property-deprecated	Test whether a Unicode character is "deprecated".
unictype/property-diacritic	Test whether a Unicode character is "diacritic".
unictype/property-extender	Test whether a Unicode character is "extender".
unictype/property-format-control	Test whether a Unicode character is "format control".
unictype/property-grapheme-base	Test whether a Unicode character is "grapheme base".
unictype/property-grapheme-extend	Test whether a Unicode character is "grapheme extend".
unictype/property-grapheme-link	Test whether a Unicode character is "grapheme link".
unictype/property-hex-digit	Test whether a Unicode character is "hex digit".
unictype/property-hyphen	Test whether a Unicode character is "hyphen".
unictype/property-id-continue	Test whether a Unicode character is "id continue".
unictype/property-id-start	Test whether a Unicode character is "id start".
unictype/property-ideographic	Test whether a Unicode character is "ideographic".
unictype/property-ids-binary-operator	Test whether a Unicode character is "ids binary operator".
unictype/property-ids-trinary-operator	Test whether a Unicode character is "ids trinary operator".
unictype/property-ignorable-control	Test whether a Unicode character is "ignorable control".
unictype/property-iso-control	Test whether a Unicode character is "iso control".
unictype/property-join-control	Test whether a Unicode character is "join control".
unictype/property-left-of-pair	Test whether a Unicode character is "left of pair".
unictype/property-line-separator	Test whether a Unicode character is "line separator".
unictype/property-logical-order-exception	Test whether a Unicode character is "logical order exception".
unictype/property-lowercase	Test whether a Unicode character is "lowercase".
unictype/property-math	Test whether a Unicode character is "math".
unictype/property-non-break	Test whether a Unicode character is "non break".
unictype/property-not-a-character	Test whether a Unicode character is "not a character".
unictype/property-numeric	Test whether a Unicode character is "numeric".
unictype/property-other-alphabetic	Test whether a Unicode character is "other alphabetic".
unictype/property-other-default-ignorable-code-point	Test whether a Unicode character is "other default ignorable code point".
unictype/property-other-grapheme-extend	Test whether a Unicode character is "other grapheme extend".
unictype/property-other-id-continue	Test whether a Unicode character is "other id continue".
unictype/property-other-id-start	Test whether a Unicode character is "other id start".
unictype/property-other-lowercase	Test whether a Unicode character is "other lowercase".
unictype/property-other-math	Test whether a Unicode character is "other math".
unictype/property-other-uppercase	Test whether a Unicode character is "other uppercase".
unictype/property-paired-punctuation	Test whether a Unicode character is "paired punctuation".
unictype/property-paragraph-separator	Test whether a Unicode character is "paragraph separator".
unictype/property-pattern-syntax	Test whether a Unicode character is "pattern syntax".
unictype/property-pattern-white-space	Test whether a Unicode character is "pattern white space".
unictype/property-private-use	Test whether a Unicode character is "private use".
unictype/property-punctuation	Test whether a Unicode character is "punctuation".
unictype/property-quotation-mark	Test whether a Unicode character is "quotation mark".
unictype/property-radical	Test whether a Unicode character is "radical".
unictype/property-sentence-terminal	Test whether a Unicode character is "sentence terminal".
unictype/property-soft-dotted	Test whether a Unicode character is "soft dotted".
unictype/property-space	Test whether a Unicode character is "space".
unictype/property-terminal-punctuation	Test whether a Unicode character is "terminal punctuation".
unictype/property-test	Test whether a Unicode character has a given property.
unictype/property-titlecase	Test whether a Unicode character is "titlecase".
unictype/property-unassigned-code-value	Test whether a Unicode character is "unassigned code value".
unictype/property-unified-ideograph	Test whether a Unicode character is "unified ideograph".
unictype/property-uppercase	Test whether a Unicode character is "uppercase".
unictype/property-variation-selector	Test whether a Unicode character is "variation selector".
unictype/property-white-space	Test whether a Unicode character is "white space".
unictype/property-xid-continue	Test whether a Unicode character is "xid continue".
unictype/property-xid-start	Test whether a Unicode character is "xid start".
unictype/property-zero-width	Test whether a Unicode character is "zero width".
unictype/property-all	Complete API for Unicode character properties.
unictype/scripts	Scripts of Unicode characters.
unictype/scripts-all	Complete API for scripts of Unicode characters.
unictype/syntax-c-ident	Test whether a Unicode character can occur in identifiers in the C language.
unictype/syntax-c-whitespace	Test whether a Unicode character is whitespace in the C language syntax.
unictype/syntax-java-ident	Test whether a Unicode character can occur in identifiers in the Java language.
unictype/syntax-java-whitespace	Test whether a Unicode character is whitespace in the Java language syntax.
uniwidth/base	Base layer for Unicode string width.
uniwidth/u8-strwidth	Determine display width of UTF-8 string.
uniwidth/u8-width	Determine display width of UTF-8 string.
uniwidth/u16-strwidth	Determine display width of UTF-16 string.
uniwidth/u16-width	Determine display width of UTF-16 string.
uniwidth/u32-strwidth	Determine display width of UTF-32 string.
uniwidth/u32-width	Determine display width of UTF-32 string.
uniwidth/width	Determine display width of Unicode character.
unilbrk/base	Base layer for line breaking.
unilbrk/tables	Line breaking auxiliary tables.
unilbrk/ulc-common	Line breaking auxiliary functions.
unilbrk/u8-possible-linebreaks	Line breaking of UTF-8 strings.
unilbrk/u16-possible-linebreaks	Line breaking of UTF-16 strings.
unilbrk/u32-possible-linebreaks	Line breaking of UTF-32 strings.
unilbrk/ulc-possible-linebreaks	Line breaking of strings.
unilbrk/u8-width-linebreaks	Line breaking of UTF-8 strings.
unilbrk/u16-width-linebreaks	Line breaking of UTF-16 strings.
unilbrk/u32-width-linebreaks	Line breaking of UTF-32 strings.
unilbrk/ulc-width-linebreaks	Line breaking of strings.

Executing programs

cloexec	Set or clear the close-on-exec descriptor flag.
findprog	Locating a program in PATH.
wait-process	Waiting for a subprocess to finish.
execute	Creation of autonomous subprocesses.
pipe	Creation of subprocesses, communicating via pipes.
sh-quote	Shell quoting.

Java

classpath	Java CLASSPATH handling.
javacomp-script	Script to compile a Java program.
javacomp	Compile a Java program.
javaexec-script	Execute a Java program.
javaexec	Execute a Java program.
javaversion	Determine the Java version supported by javaexec.

C#

csharpcomp-script	Script to compile a C# program.
csharpcomp	Compile a C# program.
csharpexec-script	Script to execute a C# program.
csharpexec	Execute a C# program.

Misc

argp	Hierarchical processing of command line arguments.
argz	Argv style string arrays in a single null delimited char*.
bitrotate	Rotate bits in unsigned 8, 16, and 32 bit integers.
byteswap	Swap bytes of 16, 32 and 64 bit values.
exitfail	Set exit status for fatal signal.
error	error and error_at_line functions: Error reporting.
extensions	Enable extensions in standard headers
getdomainname	getdomainname function: Return machine's NIS domain name.
xgetdomainname	Return machine's domainname, without size limitations.
getloadavg	Return the current system load averages.
getpagesize	getpagesize function: Return memory page size.
getusershell	Return names of valid user shells.
lib-symbol-visibility	Control of symbols exported by shared libraries.
nproc	Detect the number of processors
physmem	Return amount of total/available physical memory.
posixver	Determine desired POSIX specification version, according to user's environment variables.
progname	Program name management.
quotearg	Quote arguments for use in error messages.
quote	Quote arguments for use in error messages.
readutmp	Read entire utmp file into memory.
random_r	reentrant random number generator
selinux-h	SELinux-related headers for systems that lack them.
selinux-at	openat-style fd-relative functions for SE Linux
sysexits	Exit status codes for some BSD system programs.
u64	uint64_t-like operations that work even on hosts lacking uint64_t
verror	verror and verror_at_line functions: Error reporting with va_list.

Support for building libraries and executables

absolute-header	Allows wrapping a broken system header in a gnulib replacement.
config-h	Assume config.h exists, to avoid -DHAVE_CONFIG_H clutter in `make` output.
configmake	Variables set by "configure" or "make".
dummy	A dummy file, to make sure the library is non-empty.
elisp-comp	Compile Emacs Lisp files.
gperf	Provides the GNU gperf build tool.
havelib	Macros to search for libraries.
include_next	Allows wrapping a broken system header in a gnulib replacement.
ldd	Command to determine the dynamically linked dependencies of a program.
lib-ignore	If possible, ignore libraries that are not depended on.
lib-msvc-compat	Macros to test whether LD support --output-def.
lib-symbol-versions	Macros to test whether LD support --linker-script.
link-warning	A C macro for emitting link time warnings.
no-c++	Support for compiling in C mode when CC is set to a C++ compiler.
relocatable-lib	Help make libraries relocatable, that is, to allow them to function properly when copied to an arbitrary directory.
relocatable-lib-lgpl	Help make libraries relocatable, that is, to allow them to function properly when copied to an arbitrary directory.
relocatable-prog	Help make programs relocatable, that is, to allow them to function properly when copied to an arbitrary directory.
relocatable-prog-wrapper	Source for the wrapper program that is required for making programs relocatable that depend on shared libraries installed with the same installation prefix.
relocatable-script	Help make shell scripts relocatable, that is, to allow them to function properly when copied to an arbitrary directory.
warnings	Helper M4 functions for safely adding compiler warning parameters.
manywarnings	Helper M4 functions to help work out a set of warning parameters to use.

Support for building documentation

agpl-3.0	Provide the GNU Affero General Public License version 3.0 in Texinfo format.
fdl	Provide the GNU Free Documentation License in Texinfo format.
fdl-1.3	Provide the GNU Free Documentation License version 1.3 in Texinfo format.
gendocs	Generate manuals in several formats from Texinfo sources. Can be used for http://www.gnu.org/software/PKG/manual/ directories.
gpl-2.0	Provide the GNU General Public License version 2.0 in Texinfo format.
gpl-3.0	Provide the GNU General Public License version 3.0 in Texinfo format.
lgpl-2.1	Provide the GNU Lesser General Public License version 2.1 in Texinfo format.
pmccabe2html	Produce fancy cyclomatic code complexity charts, using pmccabe. See <http://www.parisc-linux.org/~bame/pmccabe/>.
regexprops-generic	Describe the various regular expression flavors.

Support for maintaining and releasing projects

announce-gen	Generate a release announcement message.
autobuild	Macros to print information about the build, useful for the autobuild parser.
do-release-commit-and-tag	Automate the release-commit and tag process.
git-version-gen	Compute a version string from a git repository.
gitlog-to-changelog	Convert git log to ChangeLog
gnu-web-doc-update	update the official GNU web documentation for your project
gnumakefile	Add GNU-make specific rules for maintainer use.
gnupload	Upload PGP signed files to gnu.org. See http://www.gnu.org/prep/maintain/html_node/Automated-FTP-Uploads.html for more information.
maintainer-makefile	Helper GNUmakefile with syntax checks, build improvements, etc.
mktempd	Create a temporary directory, much like mktemp -d does.
update-copyright	Update an FSF copyright year list to include the current year.
useless-if-before-free	Detect useless "if" tests before "free" calls.
vc-list-files	list version-controlled files (vc-agnostic)

Misc

gnu-make	Determine whether recent-enough GNU Make is being used.
host-os	Define HOST_OPERATING_SYSTEM to a name for the host operating system.
nocrash	Macro that avoids crashes in configure tests.
perl	Find a new-enough version of Perl.
posix-shell	Find a POSIX-conforming shell.
uptime	Test whether /proc/uptime might exist.

Support for obsolete systems lacking ANSI C 89

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
stdlib	#include <stdlib.h>	stdlib.in.h	stdlib_h.m4 00gnulib.m4 gl_STDLIB_H	include_next link-warning unistd stddef stdint
exit	#include <stdlib.h>	---	00gnulib.m4	stdlib
strtol	#include <stdlib.h>	strtol.c	strtol.m4 00gnulib.m4 gl_FUNC_STRTOL	wchar
strtoul	#include <stdlib.h>	strtoul.c	strtoul.m4 00gnulib.m4 gl_FUNC_STRTOUL	strtol
memcmp	#include <string.h>	memcmp.c	memcmp.m4 00gnulib.m4 gl_FUNC_MEMCMP	stdint
memcpy	#include <string.h>	memcpy.c	memcpy.m4 00gnulib.m4 gl_FUNC_MEMCPY	---
memmove	#include <string.h>	memmove.c	memmove.m4 00gnulib.m4 gl_FUNC_MEMMOVE	---
memset	#include <string.h>	memset.c	memset.m4 00gnulib.m4 gl_FUNC_MEMSET	---
strcspn	#include <string.h>	strcspn.c	strcspn.m4 00gnulib.m4 gl_FUNC_STRCSPN	---
strpbrk	#include <string.h>	strpbrk.c	strpbrk.m4 00gnulib.m4 gl_FUNC_STRPBRK gl_STRING_MODULE_INDICATOR([strpbrk])	string

Support for systems lacking ANSI C 89

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
atexit	#include <stdlib.h>	atexit.c	atexit.m4 00gnulib.m4 gl_FUNC_ATEXIT	---
strtod	#include <stdlib.h>	strtod.c	strtod.m4 00gnulib.m4 gl_FUNC_STRTOD gl_STDLIB_MODULE_INDICATOR([strtod])	c-ctype stdbool stdlib
strerror	#include <string.h>	strerror.c	strerror.m4 00gnulib.m4 gl_FUNC_STRERROR gl_STRING_MODULE_INDICATOR([strerror])	errno intprops string
mktime	#include <time.h>	mktime-internal.h mktime.c	mktime.m4 00gnulib.m4 gl_FUNC_MKTIME	multiarch time_r

Enhancements for ANSI C 89 functions

Diagnostics <assert.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
assert	#include <assert.h>	---	assert.m4 00gnulib.m4 gl_ASSERT	---
verify	#include "verify.h"	---	00gnulib.m4	---

Mathematics <math.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
fpieee	---	---	fpieee.m4 00gnulib.m4	---

Input/output <stdio.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
fflush	#include <stdio.h>	fflush.c stdio-impl.h	fflush.m4 00gnulib.m4 gl_FUNC_FFLUSH gl_STDIO_MODULE_INDICATOR([fflush])	fpurge ftello freading lseek stdio unistd fseeko
fseterr	#include "fseterr.h"	fseterr.c stdio-impl.h	00gnulib.m4	dup2
tmpfile	#include <stdio.h>	tmpfile.c	tmpfile.m4 00gnulib.m4 gl_TMPFILE	pathmax tempname tmpdir

Memory management functions <stdlib.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
calloc	#include <stdlib.h>	calloc.c	calloc.m4 00gnulib.m4 AC_FUNC_CALLOC	calloc-posix
eealloc	#include <eealloc.h>	eealloc.h	eealloc.m4 00gnulib.m4 gl_EEALLOC	---
free	#include <stdlib.h>	free.c	free.m4 00gnulib.m4 gl_FUNC_FREE	---
malloc	#include <stdlib.h>	malloc.c	00gnulib.m4 AC_FUNC_MALLOC AC_DEFINE([GNULIB_MALLOC_GNU], 1, [Define to indicate the 'malloc' module.])	malloc-posix
realloc	#include <stdlib.h>	realloc.c	00gnulib.m4 AC_FUNC_REALLOC AC_DEFINE([GNULIB_REALLOC_GNU], 1, [Define to indicate the 'realloc' module.])	realloc-posix
pagealign_alloc	#include "pagealign_alloc.h"	pagealign_alloc.c	mmap-anon.m4 pagealign_alloc.m4 00gnulib.m4 gl_PAGEALIGN_ALLOC	error exit extensions getpagesize gettext-h xalloc unistd

Sorting functions <stdlib.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
mpsort	#include "mpsort.h"	mpsort.c	mpsort.m4 00gnulib.m4 gl_MPSORT	---

Date and time <time.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
fprintftime	#include "fprintftime.h"	fprintftime.c	fprintftime.m4 00gnulib.m4 gl_FPRINTFTIME	ignore-value strftime
strftime	#include "strftime.h"	strftime.c	mbstate_t.m4 tm_gmtoff.m4 strftime.m4 00gnulib.m4 gl_FUNC_GNU_STRFTIME	extensions mbrlen mbsinit stdbool time_r wchar

Extra functions based on ANSI C 89

Memory management functions <stdlib.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
xsize	#include "xsize.h"	---	xsize.m4 00gnulib.m4 gl_XSIZE	size_max
xalloc	#include "xalloc.h"	xmalloc.c	xalloc.m4 00gnulib.m4 gl_XALLOC	inline xalloc-die
xalloc-die	#include "xalloc.h"	xalloc-die.c	00gnulib.m4	xalloc error gettext-h exitfail
alloca	#include <alloca.h>	alloca.c	00gnulib.m4	alloca-opt
alloca-opt	#include <alloca.h>	alloca.in.h	alloca.m4 00gnulib.m4 gl_FUNC_ALLOCA	---
malloca	#include "malloca.h"	malloca.c malloca.valgrind	malloca.m4 eealloc.m4 longlong.m4 00gnulib.m4 gl_MALLOCA	alloca-opt
xmalloca	#include "xmalloca.h"	xmalloca.c	00gnulib.m4	malloca xalloc
xmemdup0	#include "xmemdup0.h"	xmemdup0.c	00gnulib.m4 AC_LIBOBJ([xmemdup0])	xalloc
safe-alloc	#include "safe-alloc.h"	safe-alloc.c	safe-alloc.m4 00gnulib.m4 gl_SAFE_ALLOC	---

Integer arithmetic functions <stdlib.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
count-one-bits	#include "count-one-bits.h"	---	count-one-bits.m4 00gnulib.m4 gl_COUNT_ONE_BITS	inline verify
gcd	#include "gcd.h"	gcd.c	00gnulib.m4	---
minmax	#include "minmax.h"	---	minmax.m4 00gnulib.m4 gl_MINMAX	---

Environment variables <stdlib.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
putenv	#include <stdlib.h>	putenv.c	putenv.m4 00gnulib.m4 gl_FUNC_PUTENV gl_STDLIB_MODULE_INDICATOR([putenv])	stdlib malloc-posix
setenv	#include <stdlib.h>	setenv.c	setenv.m4 00gnulib.m4 gl_FUNC_SETENV gl_STDLIB_MODULE_INDICATOR([setenv])	stdlib malloca alloca-opt unistd environ
unsetenv	#include <stdlib.h>	unsetenv.c	setenv.m4 00gnulib.m4 gl_FUNC_UNSETENV gl_STDLIB_MODULE_INDICATOR([unsetenv])	stdlib unistd environ
xsetenv	#include "xsetenv.h"	xsetenv.c	00gnulib.m4	setenv unsetenv error exit gettext-h

Character handling <ctype.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
c-ctype	#include "c-ctype.h"	c-ctype.c	00gnulib.m4	stdbool

String handling <string.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
bcopy	#include <strings.h>	bcopy.c	00gnulib.m4 AC_REPLACE_FUNCS(bcopy)	strings
memchr	#include <string.h>	memchr.c memchr.valgrind	memchr.m4 mmap-anon.m4 00gnulib.m4 gl_FUNC_MEMCHR gl_STRING_MODULE_INDICATOR([memchr])	extensions string
memchr2	#include "memchr2.h"	memchr2.c memchr2.valgrind	00gnulib.m4	stdint memchr
memmem	#include <string.h>	---	00gnulib.m4 gl_FUNC_MEMMEM	memmem-simple
memmem-simple	#include <string.h>	str-two-way.h memmem.c	memmem.m4 00gnulib.m4 gl_FUNC_MEMMEM_SIMPLE gl_STRING_MODULE_INDICATOR([memmem])	extensions string stdint memchr memcmp
mempcpy	#include <string.h>	mempcpy.c	mempcpy.m4 00gnulib.m4 gl_FUNC_MEMPCPY gl_STRING_MODULE_INDICATOR([mempcpy])	extensions string
memrchr	#include <string.h>	memrchr.c	memrchr.m4 00gnulib.m4 gl_FUNC_MEMRCHR gl_STRING_MODULE_INDICATOR([memrchr])	extensions string
rawmemchr	#include <string.h>	rawmemchr.c rawmemchr.valgrind	rawmemchr.m4 00gnulib.m4 gl_FUNC_RAWMEMCHR gl_STRING_MODULE_INDICATOR([rawmemchr])	extensions string
stpcpy	#include <string.h>	stpcpy.c	stpcpy.m4 00gnulib.m4 gl_FUNC_STPCPY gl_STRING_MODULE_INDICATOR([stpcpy])	extensions string
stpncpy	#include <string.h>	stpncpy.c	stpncpy.m4 00gnulib.m4 gl_FUNC_STPNCPY gl_STRING_MODULE_INDICATOR([stpncpy])	extensions string
c-strcase	#include "c-strcase.h"	c-strcasecmp.c c-strncasecmp.c	00gnulib.m4	c-ctype
strcase	#include <strings.h>	strcasecmp.c strncasecmp.c	strcase.m4 00gnulib.m4 gl_STRCASE	strings
c-strcaseeq	#include "c-strcaseeq.h"	---	00gnulib.m4	c-strcase c-ctype
c-strcasestr	#include "c-strcasestr.h"	c-strcasestr.c str-two-way.h	00gnulib.m4	c-ctype c-strcase stdbool memchr memcmp
strcasestr	#include <string.h>	---	00gnulib.m4 gl_FUNC_STRCASESTR	strcasestr-simple
strcasestr-simple	#include <string.h>	strcasestr.c str-two-way.h	strcasestr.m4 00gnulib.m4 gl_FUNC_STRCASESTR_SIMPLE gl_STRING_MODULE_INDICATOR([strcasestr])	string stdbool strcase memchr memcmp
strchrnul	#include <string.h>	strchrnul.c strchrnul.valgrind	strchrnul.m4 00gnulib.m4 gl_FUNC_STRCHRNUL gl_STRING_MODULE_INDICATOR([strchrnul])	extensions string rawmemchr
streq	#include "streq.h"	---	00gnulib.m4	---
strnlen	#include <string.h>	strnlen.c	strnlen.m4 00gnulib.m4 gl_FUNC_STRNLEN gl_STRING_MODULE_INDICATOR([strnlen])	extensions string memchr
strnlen1	#include "strnlen1.h"	strnlen1.c	00gnulib.m4	memchr
strndup	#include <string.h>	strndup.c	strndup.m4 00gnulib.m4 gl_FUNC_STRNDUP gl_STRING_MODULE_INDICATOR([strndup])	extensions string strnlen
strsep	#include <string.h>	strsep.c	strsep.m4 00gnulib.m4 gl_FUNC_STRSEP gl_STRING_MODULE_INDICATOR([strsep])	extensions string strpbrk
strstr	#include <string.h>	---	00gnulib.m4 gl_FUNC_STRSTR	strstr-simple
strstr-simple	#include <string.h>	str-two-way.h strstr.c	strstr.m4 00gnulib.m4 gl_FUNC_STRSTR_SIMPLE gl_STRING_MODULE_INDICATOR([strstr])	string stdbool memchr memcmp
c-strstr	#include "c-strstr.h"	c-strstr.c	00gnulib.m4	strstr
trim	#include "trim.h"	trim.c	00gnulib.m4	xalloc mbchar mbiter memmove strdup
fstrcmp	#include "fstrcmp.h"	fstrcmp.c	00gnulib.m4	diffseq lock tls minmax xalloc
xstrndup	#include "xstrndup.h"	xstrndup.c	xstrndup.m4 00gnulib.m4 gl_XSTRNDUP	strndup xalloc

Mathematics <math.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
printf-frexp	#include "printf-frexp.h"	printf-frexp.c	printf-frexp.m4 frexp.m4 00gnulib.m4 gl_FUNC_PRINTF_FREXP	---

Numeric conversion functions <stdlib.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
c-strtod	#include "c-strtod.h"	c-strtod.c	c-strtod.m4 00gnulib.m4 gl_C_STRTOD	extensions strdup-posix
c-strtold	#include "c-strtod.h"	c-strtod.c c-strtold.c	c-strtod.m4 00gnulib.m4 gl_C_STRTOLD	extensions strdup-posix
xstrtod	#include "xstrtod.h"	xstrtod.c	xstrtod.m4 00gnulib.m4 gl_XSTRTOD	stdbool
xstrtol	#include "xstrtol.h"	xstrtol.c xstrtoul.c xstrtol-error.c	xstrtol.m4 00gnulib.m4 gl_XSTRTOL	exitfail error getopt-gnu gettext-h intprops inttypes
xstrtold	#include "xstrtod.h"	xstrtod.c xstrtold.c	xstrtod.m4 00gnulib.m4 gl_XSTRTOLD	stdbool

Date and time <time.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
getdate	#include "getdate.h"	getdate.y	bison.m4 tm_gmtoff.m4 getdate.m4 00gnulib.m4 gl_GETDATE	c-ctype stdbool gettime intprops mktime setenv unsetenv time verify xalloc
timegm	#include <time.h>	mktime-internal.h timegm.c	timegm.m4 00gnulib.m4 gl_FUNC_TIMEGM	mktime time time_r
tzset	#include <time.h>	---	tzset.m4 00gnulib.m4 gl_FUNC_TZSET_CLOBBER	gettimeofday

Input/Output <stdio.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
unlocked-io	#include "unlocked-io.h"	---	unlocked-io.m4 00gnulib.m4 gl_FUNC_GLIBC_UNLOCKED_IO	extensions
fwriteerror	#include "fwriteerror.h"	fwriteerror.c	00gnulib.m4 gl_MODULE_INDICATOR([fwriteerror])	errno stdbool
vasnprintf	#include "vasnprintf.h"	float+.h printf-args.h printf-args.c printf-parse.h printf-parse.c vasnprintf.c asnprintf.c	wchar_t.m4 wint_t.m4 longlong.m4 intmax_t.m4 stdint_h.m4 inttypes_h.m4 vasnprintf.m4 00gnulib.m4 gl_FUNC_VASNPRINTF	alloca-opt float stdint xsize errno memchr
vasprintf	#include <stdio.h>	vasprintf.c asprintf.c	vasprintf.m4 00gnulib.m4 gl_FUNC_VASPRINTF gl_STDIO_MODULE_INDICATOR([vasprintf]) m4_ifdef([AM_XGETTEXT_OPTION], [AM_][XGETTEXT_OPTION([--flag=asprintf:2:c-format]) AM_][XGETTEXT_OPTION([--flag=vasprintf:2:c-format])])	extensions vasnprintf stdio errno
xprintf	#include "xprintf.h"	xprintf.c	00gnulib.m4 m4_ifdef([AM_XGETTEXT_OPTION], [AM_][XGETTEXT_OPTION([--flag=xprintf:1:c-format]) AM_][XGETTEXT_OPTION([--flag=xvprintf:1:c-format]) AM_][XGETTEXT_OPTION([--flag=xfprintf:2:c-format]) AM_][XGETTEXT_OPTION([--flag=xvfprintf:2:c-format])])	error exitfail gettext-h stdarg stdio
xvasprintf	#include "xvasprintf.h"	xvasprintf.c xasprintf.c xalloc.h	xvasprintf.m4 00gnulib.m4 gl_XVASPRINTF m4_ifdef([AM_XGETTEXT_OPTION], [AM_][XGETTEXT_OPTION([--flag=xasprintf:1:c-format])])	vasprintf xalloc-die xsize stdarg errno

Signal handling <signal.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
fatal-signal	#include "fatal-signal.h"	fatal-signal.c	fatal-signal.m4 sig_atomic_t.m4 00gnulib.m4 gl_FATAL_SIGNAL	xalloc stdbool unistd sigaction sigprocmask raise
raise	#include <signal.h>	raise.c	00gnulib.m4 AC_REPLACE_FUNCS(raise)	---
strsignal	#include <string.h>	strsignal.c siglist.h	strsignal.m4 00gnulib.m4 gl_FUNC_STRSIGNAL gl_STRING_MODULE_INDICATOR([strsignal])	string gettext-h lock tls snprintf memset

Command-line arguments

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
argmatch	#include "argmatch.h"	argmatch.c	argmatch.m4 00gnulib.m4 gl_ARGMATCH	gettext-h error quotearg quote exit exitfail verify stdbool memcmp
argv-iter	#include "argv-iter.h" License GPL	argv-iter.c	00gnulib.m4	getdelim stdbool
version-etc	#include "version-etc.h"	version-etc.c	version-etc.m4 00gnulib.m4 gl_VERSION_ETC	gettext-h stdarg
version-etc-fsf	---	version-etc-fsf.c	00gnulib.m4	version-etc
long-options	#include "long-options.h"	long-options.c	long-options.m4 00gnulib.m4 gl_LONG_OPTIONS	getopt-gnu version-etc

Container data structures

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
list	#include "gl_list.h"	gl_list.c	gl_list.m4 00gnulib.m4 gl_LIST	inline stdbool
array-list	#include "gl_array_list.h"	gl_array_list.c	00gnulib.m4	list xalloc xsize
carray-list	#include "gl_carray_list.h"	gl_carray_list.c	00gnulib.m4	list xalloc xsize
linked-list	#include "gl_linked_list.h"	gl_linked_list.c gl_anylinked_list1.h gl_anylinked_list2.h	00gnulib.m4	list xalloc
avltree-list	#include "gl_avltree_list.h"	gl_avltree_list.c gl_anyavltree_list1.h gl_anyavltree_list2.h gl_anytree_list1.h gl_anytree_list2.h	00gnulib.m4	list xalloc
rbtree-list	#include "gl_rbtree_list.h"	gl_rbtree_list.c gl_anyrbtree_list1.h gl_anyrbtree_list2.h gl_anytree_list1.h gl_anytree_list2.h	00gnulib.m4	list xalloc
linkedhash-list	#include "gl_linkedhash_list.h"	gl_linkedhash_list.c gl_anyhash_list1.h gl_anyhash_list2.h gl_anylinked_list1.h gl_anylinked_list2.h	00gnulib.m4	list stdint xalloc xsize
avltreehash-list	#include "gl_avltreehash_list.h"	gl_avltreehash_list.c gl_anyhash_list1.h gl_anyhash_list2.h gl_anyavltree_list1.h gl_anyavltree_list2.h gl_anytree_list1.h gl_anytree_list2.h gl_anytreehash_list1.h gl_anytreehash_list2.h	00gnulib.m4	list avltree-oset stdint xalloc xsize
rbtreehash-list	#include "gl_rbtreehash_list.h"	gl_rbtreehash_list.c gl_anyhash_list1.h gl_anyhash_list2.h gl_anyrbtree_list1.h gl_anyrbtree_list2.h gl_anytree_list1.h gl_anytree_list2.h gl_anytreehash_list1.h gl_anytreehash_list2.h	00gnulib.m4	list rbtree-oset stdint xalloc xsize
sublist	#include "gl_sublist.h"	gl_sublist.c	00gnulib.m4	list xalloc
oset	#include "gl_oset.h"	gl_oset.c	gl_list.m4 00gnulib.m4 gl_LIST	inline stdbool
array-oset	#include "gl_array_oset.h"	gl_array_oset.c	00gnulib.m4	oset xalloc xsize
avltree-oset	#include "gl_avltree_oset.h"	gl_avltree_oset.c gl_anytree_oset.h	00gnulib.m4	oset xalloc
rbtree-oset	#include "gl_rbtree_oset.h"	gl_rbtree_oset.c gl_anytree_oset.h	00gnulib.m4	oset xalloc

Cryptographic computations (low-level)

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
crypto/arcfour	#include "arcfour.h"	arcfour.c	arcfour.m4 00gnulib.m4 gl_ARCFOUR	stdint
crypto/arctwo	#include "arctwo.h"	arctwo.c	arctwo.m4 00gnulib.m4 gl_ARCTWO	stdint bitrotate
crypto/des	#include "des.h"	des.c	des.m4 00gnulib.m4 gl_DES	stdint stdbool memcmp
crypto/hmac-md5	#include "hmac.h"	hmac-md5.c	hmac-md5.m4 00gnulib.m4 gl_HMAC_MD5	memxor crypto/md5
crypto/hmac-sha1	#include "hmac.h"	hmac-sha1.c	hmac-sha1.m4 00gnulib.m4 gl_HMAC_SHA1	memxor crypto/sha1
crypto/md2	#include "md2.h"	md2.c	md2.m4 00gnulib.m4 gl_MD2	minmax
crypto/md4	#include "md4.h"	md4.c	md4.m4 00gnulib.m4 gl_MD4	stdint
crypto/md5	#include "md5.h"	md5.c	md5.m4 00gnulib.m4 gl_MD5	stdint
crypto/rijndael	#include "rijndael-alg-fst.h" #include "rijndael-api-fst.h"	rijndael-alg-fst.c rijndael-alg-fst.h rijndael-api-fst.c rijndael-api-fst.h	rijndael.m4 00gnulib.m4 gl_RIJNDAEL	stdint
crypto/sha1	#include "sha1.h"	sha1.c	sha1.m4 00gnulib.m4 gl_SHA1	stdint
crypto/sha256	#include "sha256.h"	sha256.c	sha256.m4 00gnulib.m4 gl_SHA256	stdint
crypto/sha512	#include "sha512.h"	sha512.c	sha512.m4 00gnulib.m4 gl_SHA512	stdint u64

Cryptographic computations (high-level)

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
crypto/gc	#include "gc.h"	gc-libgcrypt.c gc-gnulib.c	gc.m4 00gnulib.m4 gl_GC if test $gl_cond_libtool = false; then gl_ltlibdeps="$gl_ltlibdeps $LTLIBGCRYPT" gl_libdeps="$gl_libdeps $LIBGCRYPT" fi	havelib
crypto/gc-arcfour	#include "gc.h"	arcfour.h arcfour.c	gc-arcfour.m4 arcfour.m4 00gnulib.m4 gl_GC_ARCFOUR gl_MODULE_INDICATOR([gc-arcfour])	stdint crypto/gc
crypto/gc-arctwo	#include "gc.h"	arctwo.h arctwo.c	gc-arctwo.m4 arctwo.m4 00gnulib.m4 gl_GC_ARCTWO gl_MODULE_INDICATOR([gc-arctwo])	stdint crypto/gc bitrotate
crypto/gc-camellia	#include "gc.h"	---	gc-camellia.m4 00gnulib.m4 gl_GC_CAMELLIA gl_MODULE_INDICATOR([gc-camellia])	crypto/gc
crypto/gc-des	#include "gc.h"	des.h des.c	gc-des.m4 des.m4 00gnulib.m4 gl_GC_DES gl_MODULE_INDICATOR([gc-des])	stdint stdbool crypto/gc
crypto/gc-hmac-md5	#include "gc.h"	md5.h md5.c hmac.h hmac-md5.c memxor.h memxor.c	gc-hmac-md5.m4 md5.m4 hmac-md5.m4 memxor.m4 00gnulib.m4 gl_GC_HMAC_MD5 gl_MODULE_INDICATOR([gc-hmac-md5])	stdint crypto/gc
crypto/gc-hmac-sha1	#include "gc.h"	sha1.h sha1.c hmac.h hmac-sha1.c memxor.h memxor.c	gc-hmac-sha1.m4 sha1.m4 hmac-sha1.m4 memxor.m4 00gnulib.m4 gl_GC_HMAC_SHA1 gl_MODULE_INDICATOR([gc-hmac-sha1])	stdint crypto/gc
crypto/gc-md2	#include "gc.h"	---	gc-md2.m4 00gnulib.m4 gl_GC_MD2 gl_MODULE_INDICATOR([gc-md2])	stdint minmax crypto/gc crypto/md2
crypto/gc-md4	#include "gc.h"	md4.h md4.c	gc-md4.m4 md4.m4 00gnulib.m4 gl_GC_MD4 gl_MODULE_INDICATOR([gc-md4])	stdint crypto/gc
crypto/gc-md5	#include "gc.h"	md5.h md5.c	gc-md5.m4 md5.m4 00gnulib.m4 gl_GC_MD5 gl_MODULE_INDICATOR([gc-md5])	stdint crypto/gc
crypto/gc-pbkdf2-sha1	#include "gc.h"	gc-pbkdf2-sha1.c	gc-pbkdf2-sha1.m4 00gnulib.m4 gl_GC_PBKDF2_SHA1	crypto/gc crypto/gc-hmac-sha1
crypto/gc-random	#include "gc.h"	---	gc-random.m4 00gnulib.m4 gl_GC_RANDOM gl_MODULE_INDICATOR([gc-random])	crypto/gc
crypto/gc-rijndael	#include "gc.h"	rijndael-alg-fst.c rijndael-alg-fst.h rijndael-api-fst.c rijndael-api-fst.h	gc-rijndael.m4 rijndael.m4 00gnulib.m4 gl_GC_RIJNDAEL gl_MODULE_INDICATOR([gc-rijndael])	stdint crypto/gc
crypto/gc-sha1	#include "gc.h"	sha1.h sha1.c	gc-sha1.m4 sha1.m4 00gnulib.m4 gl_GC_SHA1 gl_MODULE_INDICATOR([gc-sha1])	stdint crypto/gc

Compiler warning management

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
ignore-value	#include <ignore-value.h>	ignore-value.h	00gnulib.m4 AC_REQUIRE([AC_C_INLINE])	---

Misc

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
base64	#include "base64.h"	base64.c	base64.m4 00gnulib.m4 gl_FUNC_BASE64	stdbool memchr
check-version	#include "check-version.h"	check-version.c	check-version.m4 00gnulib.m4 gl_CHECK_VERSION	strverscmp
crc	#include "crc.h"	crc.c	crc.m4 00gnulib.m4 gl_CRC	stdint
diacrit	#include "diacrit.h"	diacrit.c	00gnulib.m4	---
diffseq	#include "diffseq.h"	---	00gnulib.m4	---
getline	#include <stdio.h>	getline.c	getline.m4 00gnulib.m4 gl_FUNC_GETLINE gl_STDIO_MODULE_INDICATOR([getline])	extensions getdelim stdio
getdelim	#include <stdio.h>	getdelim.c	getdelim.m4 00gnulib.m4 gl_FUNC_GETDELIM gl_STDIO_MODULE_INDICATOR([getdelim])	extensions stdio stdint realloc-posix errno
getnline	#include "getnline.h"	getnline.c	getnline.m4 00gnulib.m4 gl_GETNLINE	getndelim2 ssize_t
getndelim2	#include "getndelim2.h"	getndelim2.c	getndelim2.m4 00gnulib.m4 gl_GETNDELIM2	ssize_t stdbool stdint freadptr freadseek memchr2
linebuffer	#include "linebuffer.h"	linebuffer.c	00gnulib.m4	xalloc
memxor	#include "memxor.h"	memxor.c	memxor.m4 00gnulib.m4 gl_MEMXOR	---
obstack	#include "obstack.h"	obstack.c	00gnulib.m4 AC_FUNC_OBSTACK dnl Note: AC_FUNC_OBSTACK does AC_LIBSOURCES([obstack.h, obstack.c]).	gettext-h exit exitfail stdint
obstack-printf	#include <stdio.h>	obstack_printf.c	obstack-printf.m4 00gnulib.m4 gl_FUNC_OBSTACK_PRINTF gl_STDIO_MODULE_INDICATOR([obstack-printf])	obstack stdio vasnprintf extensions
obstack-printf-posix	#include <stdio.h>	obstack_printf.c	obstack-printf.m4 obstack-printf-posix.m4 00gnulib.m4 gl_FUNC_OBSTACK_PRINTF_POSIX gl_STDIO_MODULE_INDICATOR([obstack-printf-posix])	obstack stdio vasnprintf-posix extensions
hash-pjw	#include "hash-pjw.h"	hash-pjw.c	00gnulib.m4	---
hash	#include "hash.h"	hash.c	hash.m4 00gnulib.m4 gl_HASH	bitrotate stdbool stdint xalloc
readline	#include "readline.h"	readline.c	readline.m4 00gnulib.m4 gl_FUNC_READLINE	getline havelib
readtokens	#include "readtokens.h"	readtokens.c	readtokens.m4 00gnulib.m4 gl_READTOKENS	xalloc stdbool
readtokens0	#include "readtokens0.h"	readtokens0.c	00gnulib.m4	obstack stdbool
strverscmp	#include <string.h>	strverscmp.c	strverscmp.m4 00gnulib.m4 gl_FUNC_STRVERSCMP gl_STRING_MODULE_INDICATOR([strverscmp])	extensions string
filevercmp	#include "filevercmp.h"	filevercmp.c	00gnulib.m4	c-ctype inline stdbool string

Support for systems lacking ISO C 99

Core language properties

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
flexmember	---	---	flexmember.m4 00gnulib.m4 AC_C_FLEXIBLE_ARRAY_MEMBER	---
fpucw	#include "fpucw.h"	---	00gnulib.m4	---
func	---	---	func.m4 00gnulib.m4 gl_FUNC	---
inline	---	---	inline.m4 00gnulib.m4 gl_INLINE	---
longlong	---	---	longlong.m4 00gnulib.m4 AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])	---
vararrays	---	---	vararrays.m4 00gnulib.m4 AC_C_VARARRAYS	---

Sizes of integer types <limits.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
size_max	#include "size_max.h"	---	size_max.m4 00gnulib.m4 gl_SIZE_MAX	---

Variable arguments <stdarg.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
stdarg	#include <stdarg.h>	stdarg.in.h	stdarg.m4 00gnulib.m4 gl_STDARG_H	include_next

Boolean type and values <stdbool.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
stdbool	#include <stdbool.h>	stdbool.in.h	stdbool.m4 00gnulib.m4 AM_STDBOOL_H	---

Basic types <stddef.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
stddef	#include <stddef.h>	stddef.in.h	stddef_h.m4 wchar_t.m4 00gnulib.m4 gl_STDDEF_H	include_next

Integer types and values <stdint.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
stdint	#include <stdint.h>	stdint.in.h	stdint.m4 longlong.m4 00gnulib.m4 gl_STDINT_H	include_next multiarch wchar

Input/output <stdio.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
stdio	#include <stdio.h>	stdio.in.h stdio-write.c	stdio_h.m4 00gnulib.m4 gl_STDIO_H	include_next link-warning raise stddef
snprintf	#include <stdio.h>	snprintf.c	snprintf.m4 printf.m4 00gnulib.m4 gl_FUNC_SNPRINTF gl_STDIO_MODULE_INDICATOR([snprintf])	stdio vasnprintf errno
vsnprintf	#include <stdio.h>	vsnprintf.c	vsnprintf.m4 printf.m4 00gnulib.m4 gl_FUNC_VSNPRINTF gl_STDIO_MODULE_INDICATOR([vsnprintf])	stdio vasnprintf errno

Numeric conversion functions <stdlib.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
strtoll	#include <stdlib.h>	strtoll.c	longlong.m4 strtoll.m4 00gnulib.m4 gl_FUNC_STRTOLL gl_STDLIB_MODULE_INDICATOR([strtoll])	stdlib strtol
strtoull	#include <stdlib.h>	strtoull.c	longlong.m4 strtoull.m4 00gnulib.m4 gl_FUNC_STRTOULL gl_STDLIB_MODULE_INDICATOR([strtoull])	stdlib strtoul

Functions for greatest-width integer types <inttypes.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
imaxabs	#include <inttypes.h>	imaxabs.c	imaxabs.m4 00gnulib.m4 gl_FUNC_IMAXABS gl_INTTYPES_MODULE_INDICATOR([imaxabs])	inttypes
imaxdiv	#include <inttypes.h>	imaxdiv.c	imaxdiv.m4 00gnulib.m4 gl_FUNC_IMAXDIV gl_INTTYPES_MODULE_INDICATOR([imaxdiv])	inttypes
inttypes	#include <inttypes.h>	inttypes.in.h	inttypes-pri.m4 inttypes.m4 00gnulib.m4 gl_INTTYPES_H	include_next link-warning multiarch stdint
strtoimax	#include <inttypes.h>	strtoimax.c	longlong.m4 strtoimax.m4 00gnulib.m4 gl_FUNC_STRTOIMAX gl_INTTYPES_MODULE_INDICATOR([strtoimax])	strtoll verify inttypes stdint
strtoumax	#include <inttypes.h>	strtoumax.c	longlong.m4 strtoumax.m4 00gnulib.m4 gl_FUNC_STRTOUMAX gl_INTTYPES_MODULE_INDICATOR([strtoumax])	strtoimax strtoull inttypes stdint

Extended multibyte and wide character utilities <wchar.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
wchar	#include <wchar.h>	wchar.in.h	wchar.m4 wint_t.m4 00gnulib.m4 gl_WCHAR_H	include_next link-warning stddef
btowc	#include <wchar.h>	btowc.c	btowc.m4 00gnulib.m4 gl_FUNC_BTOWC gl_WCHAR_MODULE_INDICATOR([btowc])	wchar
wctob	#include <wchar.h>	wctob.c	wctob.m4 locale-fr.m4 codeset.m4 00gnulib.m4 gl_FUNC_WCTOB gl_WCHAR_MODULE_INDICATOR([wctob])	wchar
mbsinit	#include <wchar.h>	mbsinit.c	mbsinit.m4 mbstate_t.m4 00gnulib.m4 gl_FUNC_MBSINIT gl_WCHAR_MODULE_INDICATOR([mbsinit])	wchar mbrtowc verify extensions
mbrlen	#include <wchar.h>	mbrlen.c	mbrlen.m4 mbstate_t.m4 00gnulib.m4 gl_FUNC_MBRLEN gl_WCHAR_MODULE_INDICATOR([mbrlen])	wchar mbrtowc extensions
mbrtowc	#include <wchar.h>	mbrtowc.c	mbrtowc.m4 mbstate_t.m4 locale-fr.m4 locale-ja.m4 locale-zh.m4 codeset.m4 00gnulib.m4 gl_FUNC_MBRTOWC gl_WCHAR_MODULE_INDICATOR([mbrtowc])	wchar mbsinit localcharset streq verify extensions
mbsrtowcs	#include <wchar.h>	mbsrtowcs.c mbsrtowcs-state.c	mbsrtowcs.m4 mbstate_t.m4 locale-fr.m4 locale-ja.m4 locale-zh.m4 codeset.m4 00gnulib.m4 gl_FUNC_MBSRTOWCS gl_WCHAR_MODULE_INDICATOR([mbsrtowcs])	wchar mbrtowc strnlen1 extensions
wcrtomb	#include <wchar.h>	wcrtomb.c	wcrtomb.m4 mbrtowc.m4 mbstate_t.m4 locale-fr.m4 locale-ja.m4 locale-zh.m4 codeset.m4 00gnulib.m4 gl_FUNC_WCRTOMB gl_WCHAR_MODULE_INDICATOR([wcrtomb])	wchar mbsinit
wcsrtombs	#include <wchar.h>	wcsrtombs.c wcsrtombs-state.c	wcsrtombs.m4 mbrtowc.m4 mbstate_t.m4 locale-fr.m4 locale-ja.m4 locale-zh.m4 codeset.m4 00gnulib.m4 gl_FUNC_WCSRTOMBS gl_WCHAR_MODULE_INDICATOR([wcsrtombs])	wchar wcrtomb

Wide character classification and mapping utilities <wctype.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
wctype	#include <wctype.h>	wctype.in.h	wctype.m4 wint_t.m4 00gnulib.m4 gl_WCTYPE_H	include_next

Characteristics of floating types <float.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
float	#include <float.h>	float.in.h	float_h.m4 00gnulib.m4 gl_FLOAT_H	include_next

Mathematics <math.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
ceil	#include <math.h>	---	ceil.m4 00gnulib.m4 gl_FUNC_CEIL	math
ceilf	#include <math.h>	ceilf.c ceil.c	ceilf.m4 00gnulib.m4 gl_FUNC_CEILF gl_MATH_MODULE_INDICATOR([ceilf])	math extensions float
ceill	#include <math.h>	ceill.c ceil.c	ceill.m4 00gnulib.m4 gl_FUNC_CEILL gl_MATH_MODULE_INDICATOR([ceill])	math extensions float
floor	#include <math.h>	---	floor.m4 00gnulib.m4 gl_FUNC_FLOOR	math
floorf	#include <math.h>	floorf.c floor.c	floorf.m4 00gnulib.m4 gl_FUNC_FLOORF gl_MATH_MODULE_INDICATOR([floorf])	math extensions float
floorl	#include <math.h>	floorl.c floor.c	floorl.m4 00gnulib.m4 gl_FUNC_FLOORL gl_MATH_MODULE_INDICATOR([floorl])	math extensions float
frexp	#include <math.h>	frexp.c	frexp.m4 00gnulib.m4 gl_FUNC_FREXP gl_MATH_MODULE_INDICATOR([frexp])	math isnand-nolibm
frexp-nolibm	#include <math.h>	frexp.c	frexp.m4 00gnulib.m4 gl_FUNC_FREXP_NO_LIBM gl_MATH_MODULE_INDICATOR([frexp])	math isnand-nolibm
frexpl	#include <math.h>	frexpl.c frexp.c	frexpl.m4 00gnulib.m4 gl_FUNC_FREXPL gl_MATH_MODULE_INDICATOR([frexpl])	math isnanl-nolibm fpucw
frexpl-nolibm	#include <math.h>	frexpl.c frexp.c	frexpl.m4 00gnulib.m4 gl_FUNC_FREXPL_NO_LIBM gl_MATH_MODULE_INDICATOR([frexpl])	math isnanl-nolibm fpucw
isfinite	#include <math.h>	isfinite.c	isfinite.m4 check-math-lib.m4 00gnulib.m4 gl_ISFINITE gl_MATH_MODULE_INDICATOR([isfinite])	isnanf-nolibm isnand-nolibm isnanl-nolibm math extensions
isinf	#include <math.h>	isinf.c	isinf.m4 check-math-lib.m4 00gnulib.m4 gl_ISINF gl_MATH_MODULE_INDICATOR([isinf])	float math extensions
isnan	#include <math.h>	---	isnan.m4 00gnulib.m4 gl_ISNAN gl_MATH_MODULE_INDICATOR([isnan])	isnanf isnand isnanl math extensions
isnanf	#include <math.h>	isnanf.c isnan.c float+.h	exponentf.m4 isnanf.m4 00gnulib.m4 gl_FUNC_ISNANF gl_MATH_MODULE_INDICATOR([isnanf])	math fpieee memcmp
isnanf-nolibm	#include "isnanf-nolibm.h"	isnanf.c isnan.c float+.h	exponentf.m4 isnanf.m4 00gnulib.m4 gl_FUNC_ISNANF_NO_LIBM	fpieee memcmp
isnand	#include <math.h>	isnand.c isnan.c float+.h	exponentd.m4 isnand.m4 00gnulib.m4 gl_FUNC_ISNAND gl_MATH_MODULE_INDICATOR([isnand])	math fpieee memcmp
isnand-nolibm	#include "isnand-nolibm.h"	isnand.c isnan.c float+.h	exponentd.m4 isnand.m4 00gnulib.m4 gl_FUNC_ISNAND_NO_LIBM	fpieee memcmp
isnanl	#include <math.h>	isnanl.c isnan.c float+.h	exponentl.m4 isnanl.m4 00gnulib.m4 gl_FUNC_ISNANL gl_MATH_MODULE_INDICATOR([isnanl])	math float fpieee memcmp
isnanl-nolibm	#include "isnanl-nolibm.h"	isnanl.c isnan.c float+.h	exponentl.m4 isnanl.m4 00gnulib.m4 gl_FUNC_ISNANL_NO_LIBM	float fpieee memcmp
ldexpl	#include <math.h>	ldexpl.c	ldexpl.m4 00gnulib.m4 gl_FUNC_LDEXPL gl_MATH_MODULE_INDICATOR([ldexpl])	math isnanl fpucw
math	#include <math.h>	math.in.h	math_h.m4 00gnulib.m4 gl_MATH_H	include_next link-warning
mathl	#include <math.h>	acosl.c asinl.c atanl.c cosl.c expl.c logl.c sincosl.c sinl.c sqrtl.c tanl.c trigl.c trigl.h	mathl.m4 00gnulib.m4 gl_FUNC_LONG_DOUBLE_MATH gl_MATH_MODULE_INDICATOR([mathl])	float math frexpl isnanl ldexpl floorl ceill
round	#include <math.h>	round.c	check-math-lib.m4 round.m4 floor.m4 ceil.m4 00gnulib.m4 gl_FUNC_ROUND gl_MATH_MODULE_INDICATOR([round])	float floor math extensions
roundf	#include <math.h>	round.c roundf.c	check-math-lib.m4 roundf.m4 floorf.m4 ceilf.m4 00gnulib.m4 gl_FUNC_ROUNDF gl_MATH_MODULE_INDICATOR([roundf])	float math extensions
roundl	#include <math.h>	round.c roundl.c	check-math-lib.m4 roundl.m4 floorl.m4 ceill.m4 00gnulib.m4 gl_FUNC_ROUNDL gl_MATH_MODULE_INDICATOR([roundl])	float math extensions
signbit	#include <math.h>	signbitf.c signbitd.c signbitl.c float+.h	signbit.m4 00gnulib.m4 gl_SIGNBIT gl_MATH_MODULE_INDICATOR([signbit])	float math isnanf-nolibm isnand-nolibm isnanl-nolibm fpieee memcmp
trunc	#include <math.h>	trunc.c	trunc.m4 00gnulib.m4 gl_FUNC_TRUNC gl_MATH_MODULE_INDICATOR([trunc])	math extensions float
truncf	#include <math.h>	truncf.c trunc.c	truncf.m4 00gnulib.m4 gl_FUNC_TRUNCF gl_MATH_MODULE_INDICATOR([truncf])	math extensions float
truncl	#include <math.h>	truncl.c trunc.c	truncl.m4 00gnulib.m4 gl_FUNC_TRUNCL gl_MATH_MODULE_INDICATOR([truncl])	math extensions float

Enhancements for ISO C 99 functions

Input/output <stdio.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
printf-safe	---	---	00gnulib.m4 m4_divert_text([INIT_PREPARE], [gl_printf_safe=yes])	---

Extra functions based on ISO C 99

Mathematics <math.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
printf-frexpl	#include "printf-frexpl.h"	printf-frexpl.c printf-frexp.c	printf-frexpl.m4 frexpl.m4 ldexpl.m4 00gnulib.m4 gl_FUNC_PRINTF_FREXPL	float math fpucw

Numeric conversion functions <stdlib.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
intprops	#include "intprops.h"	---	00gnulib.m4	---
inttostr	#include "inttostr.h"	imaxtostr.c inttostr.c offtostr.c umaxtostr.c uinttostr.c	inttostr.m4 00gnulib.m4 gl_INTTOSTR	intprops stdint verify
xstrtoimax	#include "xstrtol.h"	xstrtoimax.c	00gnulib.m4	xstrtol strtoimax
xstrtoumax	#include "xstrtol.h"	xstrtoumax.c	00gnulib.m4	xstrtol strtoumax

Extended multibyte and wide character utilities <wchar.h>

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
mbchar	#include "mbchar.h"	mbchar.c	mbchar.m4 00gnulib.m4 gl_MBCHAR	extensions stdbool wchar wctype wcwidth memcmp
mbiter	#include "mbiter.h"	---	mbiter.m4 mbrtowc.m4 00gnulib.m4 gl_MBITER	mbchar mbrtowc mbsinit wchar stdbool
mbuiter	#include "mbuiter.h"	---	mbiter.m4 mbrtowc.m4 00gnulib.m4 gl_MBITER	mbchar mbrtowc mbsinit wchar stdbool strnlen1
mbfile	#include "mbfile.h"	---	mbfile.m4 mbrtowc.m4 00gnulib.m4 gl_MBFILE	mbchar mbrtowc mbsinit wchar stdbool

Support for obsolete systems lacking POSIX:2008

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
strdup	#include <string.h>	strdup.c	strdup.m4 00gnulib.m4 gl_FUNC_STRDUP gl_STRING_MODULE_INDICATOR([strdup])	string

Support for systems lacking POSIX:2008

modules/	lib/	lib/	m4/
Module	Header	Implementation	Autoconf macro	Depends on
accept	#include <sys/socket.h>	accept.c w32sock.h	00gnulib.m4 AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([accept]) fi gl_SYS_SOCKET_MODULE_INDICATOR([accept])	sys_socket errno
arpa_inet	#include <arpa/inet.h>	arpa_inet.in.h	arpa_inet_h.m4 00gnulib.m4 gl_HEADER_ARPA_INET AC_PROG_MKDIR_P	include_next link-warning sys_socket
bind	#include <sys/socket.h>	bind.c w32sock.h	00gnulib.m4 AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([bind]) fi gl_SYS_SOCKET_MODULE_INDICATOR([bind])	sys_socket errno
calloc-posix	#include <stdlib.h>	calloc.c	calloc.m4 malloc.m4 00gnulib.m4 gl_FUNC_CALLOC_POSIX gl_STDLIB_MODULE_INDICATOR([calloc-posix])	stdlib
chown	#include <unistd.h>	chown.c fchown-stub.c	chown.m4 00gnulib.m4 gl_FUNC_CHOWN gl_UNISTD_MODULE_INDICATOR([chown])	open unistd stat sys_stat
close	#include <unistd.h>	close.c	close.m4 00gnulib.m4 gl_FUNC_CLOSE gl_UNISTD_MODULE_INDICATOR([close])	unistd close-hook fclose
connect	#include <sys/socket.h>	connect.c w32sock.h	00gnulib.m4 AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([connect]) fi gl_SYS_SOCKET_MODULE_INDICATOR([connect])	sys_socket errno
dup2	#include <unistd.h>	dup2.c	dup2.m4 00gnulib.m4 gl_FUNC_DUP2 gl_UNISTD_MODULE_INDICATOR([dup2])	unistd
environ	#include <unistd.h>	---	environ.m4 00gnulib.m4 gl_ENVIRON gl_UNISTD_MODULE_INDICATOR([environ])	unistd extensions
errno	#include <errno.h>	errno.in.h	errno_h.m4 00gnulib.m4 gl_HEADER_ERRNO_H	include_next
fchdir	#include <unistd.h>	fchdir.c	fchdir.m4 00gnulib.m4 gl_FUNC_FCHDIR gl_UNISTD_MODULE_INDICATOR([fchdir])	close dirent dirfd dup2 fcntl-h include_next malloc-posix open realloc-posix stat stdbool strdup-posix sys_stat unistd
fclose	#include <stdio.h>	fclose.c	fclose.m4 00gnulib.m4 gl_FUNC_FCLOSE gl_STDIO_MODULE_INDICATOR([fclose])	stdio close
fcntl-h	#include <fcntl.h>	fcntl.in.h	fcntl_h.m4 00gnulib.m4 gl_FCNTL_H	include_next link-warning unistd extensions
flock	#include <sys/file.h>	flock.c	flock.m4 00gnulib.m4 gl_FUNC_FLOCK gl_HEADER_SYS_FILE_MODULE_INDICATOR([flock])	sys_file
fopen	#include <stdio.h>	fopen.c	fopen.m4 00gnulib.m4 gl_FUNC_FOPEN gl_STDIO_MODULE_INDICATOR([fopen])	stdio unistd
fprintf-posix	#include <stdio.h>	fprintf.c	fprintf-posix.m4 printf.m4 00gnulib.m4 gl_FUNC_FPRINTF_POSIX gl_STDIO_MODULE_INDICATOR([fprintf-posix])	stdio fseterr vasnprintf isnand-nolibm isnanl-nolibm frexp-nolibm frexpl-nolibm printf-frexp printf-frexpl signbit fpucw nocrash printf-safe errno multiarch
freopen	#include <stdio.h>	freopen.c	freopen.m4 00gnulib.m4 gl_FUNC_FREOPEN gl_STDIO_MODULE_INDICATOR([freopen])	stdio
fseek	#include <stdio.h>	fseek.c	fseek.m4 00gnulib.m4 gl_FUNC_FSEEK gl_MODULE_INDICATOR([fseek]) gl_STDIO_MODULE_INDICATOR([fseek])	fseeko stdio
fseeko	#include <stdio.h>	fseeko.c stdio-impl.h	fseeko.m4 00gnulib.m4 gl_FUNC_FSEEKO gl_STDIO_MODULE_INDICATOR([fseeko])	extensions lseek stdio
fsync	#include <unistd.h>	fsync.c	fsync.m4 00gnulib.m4 gl_FUNC_FSYNC gl_UNISTD_MODULE_INDICATOR([fsync])	unistd
ftell	#include <stdio.h>	ftell.c	ftell.m4 00gnulib.m4 gl_FUNC_FTELL gl_STDIO_MODULE_INDICATOR([ftell])	ftello stdio errno
ftello	#include <stdio.h>	ftello.c	ftello.m4 00gnulib.m4 gl_FUNC_FTELLO gl_STDIO_MODULE_INDICATOR([ftello])	extensions lseek stdio
ftruncate	#include <unistd.h>	ftruncate.c	ftruncate.m4 00gnulib.m4 gl_FUNC_FTRUNCATE gl_UNISTD_MODULE_INDICATOR([ftruncate])	unistd
futimens	#include <sys/stat.h>	futimens.c	futimens.m4 00gnulib.m4 gl_FUNC_FUTIMENS gl_SYS_STAT_MODULE_INDICATOR([futimens])	sys_stat utimens
getaddrinfo	#include <netdb.h>	getaddrinfo.c gai_strerror.c	getaddrinfo.m4 00gnulib.m4 gl_GETADDRINFO gl_NETDB_MODULE_INDICATOR([getaddrinfo])	extensions gettext-h inet_ntop snprintf socklen stdbool sys_socket netdb strdup servent hostent
getcwd	#include <unistd.h>	getcwd.c	getcwd-abort-bug.m4 getcwd-path-max.m4 getcwd.m4 00gnulib.m4 gl_FUNC_GETCWD gl_UNISTD_MODULE_INDICATOR([getcwd])	mempcpy d-ino dirfd extensions memmove openat stdbool unistd malloc-posix
getgroups	#include <unistd.h>	getgroups.c	getgroups.m4 00gnulib.m4 gl_FUNC_GETGROUPS	xalloc