Chris@40: dnl @synopsis MN_ADD_CXXFLAGS
Chris@40: dnl
Chris@40: dnl Add the given option to CXXFLAGS, if it doesn't break the compiler
Chris@40: 
Chris@40: AC_DEFUN([MN_ADD_CXXFLAGS],
Chris@40: [AC_MSG_CHECKING([if $CXX accepts $1])
Chris@40: 	AC_LANG_ASSERT([C++])
Chris@40: 	ac_add_cxxflags__old_cxxflags="$CXXFLAGS"
Chris@40: 	CXXFLAGS="$1"
Chris@40: 	AC_TRY_LINK([
Chris@40: 			#include <cstdio>
Chris@40: 			],
Chris@40: 		[puts("Hello, World!"); return 0;],
Chris@40: 		AC_MSG_RESULT([yes])
Chris@40: 			CXXFLAGS="$ac_add_cxxflags__old_cxxflags $1",
Chris@40: 		AC_MSG_RESULT([no])
Chris@40: 			CXXFLAGS="$ac_add_cxxflags__old_cxxflags"
Chris@40: 		)
Chris@40: ])# MN_ADD_CXXFLAGS