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- 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
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