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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-09-05 13:14:37 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-09-05 13:14:37 +0000
commitfd3b2704efc2b206784615c1a23eb25501842259 (patch)
tree61ba3a8af2a0ae2ac9ec362bbf18b038f5dc0448 /m4/add_cflags.m4
parentInitial commit. (diff)
downloadflac-fd3b2704efc2b206784615c1a23eb25501842259.tar.xz
flac-fd3b2704efc2b206784615c1a23eb25501842259.zip
Adding upstream version 1.4.3+ds.upstream/1.4.3+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'm4/add_cflags.m4')
-rw-r--r--m4/add_cflags.m415
1 files changed, 15 insertions, 0 deletions
diff --git a/m4/add_cflags.m4 b/m4/add_cflags.m4
new file mode 100644
index 0000000..d9b633c
--- /dev/null
+++ b/m4/add_cflags.m4
@@ -0,0 +1,15 @@
+dnl @synopsis XIPH_ADD_CFLAGS
+dnl
+dnl Add the given option to CFLAGS, if it doesn't break the compiler
+
+AC_DEFUN([XIPH_ADD_CFLAGS],
+[AC_MSG_CHECKING([if $CC accepts $1])
+ ac_add_cflags__old_cflags="$CFLAGS"
+ CFLAGS="$1"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ #include <stdio.h>
+ ]], [[puts("Hello, World!"); return 0;]])],[AC_MSG_RESULT(yes)
+ CFLAGS="$ac_add_cflags__old_cflags $1"],[AC_MSG_RESULT(no)
+ CFLAGS="$ac_add_cflags__old_cflags"
+ ])
+])# XIPH_ADD_CFLAGS