X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-2.6 required=5.0 	tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS
X-Spam-Check-By: sourceware.org
To: cygwin AT cygwin DOT com
From: Eric Blake <ebb9 AT byu DOT net>
Subject:  unlinkat, symlinkat in wrong headers
Date: Tue, 8 Dec 2009 00:05:20 +0000 (UTC)
Lines: 20
Message-ID:  <loom.20091208T005847-339@post.gmane.org>
Mime-Version:  1.0
Content-Type:  text/plain; charset=us-ascii
Content-Transfer-Encoding:  7bit
User-Agent: Loom/3.14 (http://gmane.org/)
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

Per POSIX, unlinkat should be declared in <unistd.h>; but cygwin only declares 
it in <fcntl.h>:

$ echo '#include <unistd.h>' | gcc -E - | grep unlink
int __attribute__((__cdecl__)) unlink (const char *__path );
$ echo '#include <fcntl.h>' | gcc -E - | grep unlink
extern int unlinkat (int, const char *, int);

Likewise, symlinkat should be in <unistd.h>; but cygwin only declares it in 
<stdio.h>:

$ echo '#include <unistd.h>' | gcc -E - | grep 'symlink'
int __attribute__((__cdecl__)) symlink (const char *__name1, const char 
*__name2);
$ echo '#include <stdio.h>' | gcc -E - | grep 'symlink'
int __attribute__((__cdecl__)) symlinkat (const char *, int, const char *);

-- 
Eric Blake



--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple