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autoconf: modernize and modularize

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Use my modular m4 library used for other things as well; update
autoconf macros to 2.71 standard.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2024-06-10 18:24:53 -07:00
parent 33051a296c
commit fefaa2cc5c
35 changed files with 680 additions and 461 deletions
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9
autoconf/m4/pa_add_cflags.m4 Normal file
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@ -0,0 +1,9 @@
dnl --------------------------------------------------------------------------
dnl PA_ADD_CFLAGS(variable, flag [,actual_flag [,success [,failure]]]])
dnl
dnl Attempt to add the given option to xFLAGS, if it doesn't break
dnl compilation. If the option to be tested is different than the
dnl option that should actually be added, add the option to be
dnl actually added as a second argument.
dnl --------------------------------------------------------------------------
AC_DEFUN([PA_ADD_CFLAGS], [PA_ADD_FLAGS(CFLAGS, [$1], [$2], [$3], [$4])])