Chris@0: dnl @synopsis MN_ADD_CXXFLAGS
Chris@0: dnl
Chris@0: dnl Add the given option to CXXFLAGS, if it doesn't break the compiler
Chris@0: 
Chris@0: AC_DEFUN([MN_ADD_CXXFLAGS],
Chris@0: [AC_MSG_CHECKING([if $CXX accepts $1])
Chris@0: 	AC_LANG_ASSERT([C++])
Chris@0: 	ac_add_cxxflags__old_cxxflags="$CXXFLAGS"
Chris@0: 	CXXFLAGS="$1"
Chris@0: 	AC_TRY_LINK([
Chris@0: 			#include <cstdio>
Chris@0: 			],
Chris@0: 		[puts("Hello, World!"); return 0;],
Chris@0: 		AC_MSG_RESULT([yes])
Chris@0: 			CXXFLAGS="$ac_add_cxxflags__old_cxxflags $1",
Chris@0: 		AC_MSG_RESULT([no])
Chris@0: 			CXXFLAGS="$ac_add_cxxflags__old_cxxflags"
Chris@0: 		)
Chris@0: ])# MN_ADD_CXXFLAGS