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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="$1"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
]], [[puts("Hello, World!"); return 0;]])],[AC_MSG_RESULT(yes)
CFLAGS="$ac_add_cflags__old_cflags $1"],[AC_MSG_RESULT(no)
CFLAGS="$ac_add_cflags__old_cflags"
])
])# XIPH_ADD_CFLAGS
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