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dnl --------------------------------------------------------------------------
dnl PA_ADD_CFLAGS()
dnl
dnl Attempt to add the given option to CFLAGS, if it doesn't break compilation
dnl --------------------------------------------------------------------------
AC_DEFUN(PA_ADD_CFLAGS,
[AC_MSG_CHECKING([if $CC accepts $1])
pa_add_cflags__old_cflags="$CFLAGS"
CFLAGS="$CFLAGS $1"
AC_TRY_LINK([#include <stdio.h>],
[printf("Hello, World!\n");],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no])
CFLAGS="$pa_add_cflags__old_cflags")])
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