-#serial 3
+#serial 5
+
+# Copyright (C) 2001, 2003, 2004, 2006 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.
# On some systems, mkdir ("foo/", 0700) fails because of the trailing slash.
# On such systems, arrange to use a wrapper function that removes any
# trailing slashes.
AC_DEFUN([gl_FUNC_MKDIR_TRAILING_SLASH],
[dnl
+ AC_CHECK_HEADERS_ONCE(unistd.h)
AC_CACHE_CHECK([whether mkdir fails due to a trailing slash],
gl_cv_func_mkdir_trailing_slash_bug,
[
# include <sys/types.h>
# include <sys/stat.h>
# include <stdlib.h>
+# ifdef HAVE_UNISTD_H
+# include <unistd.h>
+# endif
int main ()
{
rmdir ("confdir-slash");