| dnl @synopsis XIPH_ADD_CXXFLAGS | |
| dnl | |
| dnl Add the given option to CXXFLAGS, if it doesn't break the compiler | |
| AC_DEFUN([XIPH_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" | |
| ) | |
| ])# XIPH_ADD_CXXFLAGS |