1dnl @synopsis XIPH_ADD_CFLAGS 2dnl 3dnl Add the given option to CFLAGS, if it doesn't break the compiler 4 5AC_DEFUN([XIPH_ADD_CFLAGS], 6[AC_MSG_CHECKING([if $CC accepts $1]) 7 ac_add_cflags__old_cflags="$CFLAGS" 8 CFLAGS="$1" 9 AC_TRY_LINK([ 10 #include <stdio.h> 11 ], 12 [puts("Hello, World!"); return 0;], 13 AC_MSG_RESULT([yes]) 14 CFLAGS="$ac_add_cflags__old_cflags $1", 15 AC_MSG_RESULT([no]) 16 CFLAGS="$ac_add_cflags__old_cflags" 17 ) 18])# XIPH_ADD_CFLAGS 19