Update from autoconf.

This commit is contained in:
Jim Meyering 2000-05-05 16:10:03 +00:00
parent 46b48d2e0e
commit 7d4bd8f671

View File

@ -1,4 +1,4 @@
#serial 3
#serial 4
dnl A replacement for autoconf's macro by the same name. This version
dnl uses `ac_lib' rather than `i' for the loop variable, but more importantly
@ -8,36 +8,36 @@ dnl the `none required' case.
dnl I hope it's only temporary while we wait for that version to be fixed.
undefine([AC_SEARCH_LIBS])
dnl AC_SEARCH_LIBS(FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND
dnl [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
dnl Search for a library defining FUNC, if it's not already available.
# AC_SEARCH_LIBS(FUNCTION, SEARCH-LIBS,
# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
# [OTHER-LIBRARIES])
# --------------------------------------------------------
# Search for a library defining FUNC, if it's not already available.
AC_DEFUN(AC_SEARCH_LIBS,
[
AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
[
ac_func_search_save_LIBS="$LIBS"
ac_cv_search_$1="no"
AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"])
if test "$ac_cv_search_$1" = "no"; then
ac_func_search_save_LIBS=$LIBS
ac_cv_search_$1=no
AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1='none required'])
if test "$ac_cv_search_$1" = no; then
for ac_lib in $2; do
LIBS="-l$ac_lib $5 $ac_func_search_save_LIBS"
AC_TRY_LINK_FUNC([$1],
[ac_cv_search_$1="-l$ac_lib"
break])
AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="-l$ac_lib"; break])
done
fi
LIBS="$ac_func_search_save_LIBS"
LIBS=$ac_func_search_save_LIBS
])
if test "$ac_cv_search_$1" = "no"; then :
if test "$ac_cv_search_$1" = no; then :
$4
else
if test "$ac_cv_search_$1" = "none required"; then :
if test "$ac_cv_search_$1" = 'none required'; then :
$4
else
LIBS="$ac_cv_search_$1 $LIBS"
$3
# m4_default([$3], [LIBS="$ac_cv_search_$1 $LIBS"])
fi
fi
])