| dnl @synopsis XIPH_ADD_CFLAGS | |
| dnl | |
| dnl Add the given option to CFLAGS, if it doesn't break the compiler | |
| AC_DEFUN([XIPH_ADD_CFLAGS], | |
| [AC_MSG_CHECKING([if $CC accepts $1]) | |
| ac_add_cflags__old_cflags="$CFLAGS" | |
| CFLAGS="$1" | |
| AC_TRY_LINK([ | |
| #include <stdio.h> | |
| ], | |
| [puts("Hello, World!"); return 0;], | |
| AC_MSG_RESULT([yes]) | |
| CFLAGS="$ac_add_cflags__old_cflags $1", | |
| AC_MSG_RESULT([no]) | |
| CFLAGS="$ac_add_cflags__old_cflags" | |
| ) | |
| ])# XIPH_ADD_CFLAGS |