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| author | Diego 'Flameeyes' Pettenò <flameeyes@gmail.com> | 2008-05-24 02:01:21 +0200 |
|---|---|---|
| committer | Diego 'Flameeyes' Pettenò <flameeyes@gmail.com> | 2008-05-24 02:01:21 +0200 |
| commit | a2583761573b98127ae9396785875a88a4a4b8ad (patch) | |
| tree | 660e8bce46b571c49118d333b09d33f6c33bf7ce | |
| parent | fc24f6446e014c087e4a84ec2934784f89a6bbb3 (diff) | |
| download | xine-lib-a2583761573b98127ae9396785875a88a4a4b8ad.tar.gz xine-lib-a2583761573b98127ae9396785875a88a4a4b8ad.tar.bz2 | |
Backport CC_CHECK_LDFLAGS macro from 1.2 branch.
| -rw-r--r-- | m4/attributes.m4 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/m4/attributes.m4 b/m4/attributes.m4 index 49f71bddc..3fee49ab5 100644 --- a/m4/attributes.m4 +++ b/m4/attributes.m4 @@ -56,6 +56,21 @@ AC_DEFUN([CC_CHECK_CFLAGS], [ [$2], [$3]) ]) +AC_DEFUN([CC_CHECK_LDFLAGS], [ + AC_CACHE_CHECK([if $CC supports $1 flag], + AS_TR_SH([cc_cv_ldflags_$1]), + [ac_save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $1" + AC_LINK_IFELSE([int main() { return 1; }], + [eval "AS_TR_SH([cc_cv_ldflags_$1])='yes'"], + [eval "AS_TR_SH([cc_cv_ldflags_$1])="]) + LDFLAGS="$ac_save_LDFLAGS" + ]) + + AS_IF([test x$]AS_TR_SH([cc_cv_ldflags_$1])[ = xyes], + [$2], [$3]) +]) + dnl Check for a -Werror flag or equivalent. -Werror is the GCC dnl and ICC flag that tells the compiler to treat all the warnings dnl as fatal. We usually need this option to make sure that some |