libsndfile source files.

[Faustine.git] / interpretor / libsndfile-1.0.25 / M4 / add_cxxflags.m4

diff --git a/interpretor/libsndfile-1.0.25/M4/add_cxxflags.m4 b/interpretor/libsndfile-1.0.25/M4/add_cxxflags.m4
new file mode 100644 (file)
index 0000000..1c0a4de
--- /dev/null
+++ b/interpretor/libsndfile-1.0.25/M4/add_cxxflags.m4
@@ -0,0 +1,19 @@
+dnl @synopsis MN_ADD_CXXFLAGS
+dnl
+dnl Add the given option to CXXFLAGS, if it doesn't break the compiler
+
+AC_DEFUN([MN_ADD_CXXFLAGS],
+[AC_MSG_CHECKING([if $CXX accepts $1])
+       AC_LANG_ASSERT([C++])
+       ac_add_cxxflags__old_cxxflags="$CXXFLAGS"
+       CXXFLAGS="$1"
+       AC_TRY_LINK([
+                       #include <cstdio>
+                       ],
+               [puts("Hello, World!"); return 0;],
+               AC_MSG_RESULT([yes])
+                       CXXFLAGS="$ac_add_cxxflags__old_cxxflags $1",
+               AC_MSG_RESULT([no])
+                       CXXFLAGS="$ac_add_cxxflags__old_cxxflags"
+               )
+])# MN_ADD_CXXFLAGS