Bundle libsamplerate

[audio-libsamplerate.git] / libsamplerate / M4 / add_cflags.m4

diff --git a/libsamplerate/M4/add_cflags.m4 b/libsamplerate/M4/add_cflags.m4
new file mode 100644 (file)
index 0000000..7b6b555
--- /dev/null
+++ b/libsamplerate/M4/add_cflags.m4
@@ -0,0 +1,17 @@
+dnl @synopsis AC_ADD_CFLAGS
+dnl
+dnl Add the given option to CFLAGS, if it doesn't break the compiler
+
+AC_DEFUN([AC_ADD_CFLAGS],
+[AC_MSG_CHECKING([if $CC accepts $1])
+       ac_add_cflags__old_cflags="$CFLAGS"
+       CFLAGS="$CFLAGS $1"
+       AC_TRY_LINK([
+                       #include <stdio.h>
+                       ],
+               [puts("Hello, World!"); return 0;],
+               AC_MSG_RESULT([yes]),
+               AC_MSG_RESULT([no])
+               CFLAGS="$ac_add_cflags__old_cflags"
+               )
+])# AC_ADD_CFLAGS