-# fflush.m4 serial 12
+# fflush.m4 serial 14
-# Copyright (C) 2007-2011 Free Software Foundation, Inc.
+# Copyright (C) 2007-2013 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_FFLUSH_STDIN],
[
+ AC_CHECK_HEADERS_ONCE([unistd.h])
AC_CACHE_CHECK([whether fflush works on input streams],
[gl_cv_func_fflush_stdin],
[echo hello world > conftest.txt
AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
#include <stdio.h>
-#include <unistd.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else /* on Windows with MSVC */
+# include <io.h>
+#endif
]], [[FILE *f = fopen ("conftest.txt", "r");
char buffer[10];
int fd;
])
# Prerequisites of lib/fflush.c.
-AC_DEFUN([gl_PREREQ_FFLUSH],
-[
- AC_REQUIRE([AC_C_INLINE])
- :
-])
+AC_DEFUN([gl_PREREQ_FFLUSH], [:])