dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_CHECK_FUNCS_ONCE([__fpurge])
AC_CHECK_DECLS([fpurge], , , [[#include <stdio.h>]])
if test "x$ac_cv_func_fpurge" = xyes; then
AC_CHECK_FUNCS_ONCE([__fpurge])
AC_CHECK_DECLS([fpurge], , , [[#include <stdio.h>]])
if test "x$ac_cv_func_fpurge" = xyes; then
# Detect BSD bug. Only cygwin 1.7 is known to be immune.
AC_CACHE_CHECK([whether fpurge works], [gl_cv_func_fpurge_works],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
# Detect BSD bug. Only cygwin 1.7 is known to be immune.
AC_CACHE_CHECK([whether fpurge works], [gl_cv_func_fpurge_works],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>