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dnl @synopsis MN_ADD_CFLAGS
dnl
dnl Add the given option to CFLAGS, if it doesn't break the compiler

AC_DEFUN([MN_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"
)
])# MN_ADD_CFLAGS
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