AX_COND_WITH_LEVEL(PACKAGE [,DEFAULT [,YESLEVEL]])
Actually used after an AC_ARG_WITH(PKG,...) option-directive, where AC_ARG_WITH is a part of the standard autoconf to define a ‘configure‘ –with-PKG option.
This macros works almost like AC_COND_WITH(PACKAGE [,DEFAULT]), but the definition is set to a numeric value. The level of a simple "yes" is given (or assumed "2" if absent), otherwise the level can be given in mnemonic names, being:
1 = some 2 = many 3 = all 4 = extra 5 = extrasome more 6 = extramany muchmore much 7 = super everything 8 = ultra experimental 9 = insane
this macro is most handily it making Makefile.in/Makefile.am that have a set of with-level declarations, especially optimization-levels
the $withval shell-variable is set for further examination (it carries the numeric value of the various mnemonics above)
Download the latest version of ax_cond_with_level.m4 or browse the macro’s revision history.
Copyright © 2008 Guido U. Draheim firstname.lastname@example.org
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