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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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22
autoconf/m4/pa_search_libs_and_add.m4 Normal file
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@ -0,0 +1,22 @@
dnl --------------------------------------------------------------------------
dnl PA_SEARCH_LIBS_AND_ADD
dnl
dnl PA_SEARCH_LIBS_AND_ADD(function, libraries [,function to add])
dnl --------------------------------------------------------------------------
AC_DEFUN([PA_SEARCH_LIBS_AND_ADD],
[
AH_TEMPLATE(AS_TR_CPP(HAVE_$1), [Define if $1 function was found])
AC_SEARCH_LIBS($1, $2,
[
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$1))
pa_add_$1=false;
],
[
XTRA=true;
if test $# -eq 3; then
AC_LIBOBJ($3)
else
AC_LIBOBJ($1)
fi
pa_add_$1=true;
])])