From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <4B8D4FD6.6030302@lafvb.com>
Date: Tue,  2 Mar 2010 12:50:14 -0500
From: Edward E Elzey <eee@lafvb.com>
User-Agent: Thunderbird 2.0.0.23 (Windows/20090812)
MIME-Version: 1.0
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
References: <a9328362-f0e8-4203-b6ff-bc9ee838c64e@z1g2000prc.googlegroups.com>,
	<a9328362-f0e8-4203-b6ff-bc9ee838c64e@z1g2000prc.googlegroups.com>
	<twig.1267551627.47659@swcp.com>
In-Reply-To: <twig.1267551627.47659@swcp.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [9fans] compiler warnings for libavl/avl.c
Topicbox-Message-UUID: debacc84-ead5-11e9-9d60-3106f5b1d025

EBo wrote:

>>> -int errno;
>>> +#include <errno.h>

> I simply noticed the patch and was wondering if there would be any advantage
> to including it, so I have no idea if there is any specific advantage.  I also
> was not sure if this was simply a POSIX'ism or a 9'ism, and if this
> could/should be cleaned up.

Actually the good folks at Linux have broken errno:

9l -o o.9660srv main.o 9660srv.o xfile.o iobuf.o data.o
/usr/bin/ld: errno: TLS definition in /lib/libc.so.6 section .tbss
mismatches non-TLS reference in main.o
/lib/libc.so.6: could not read symbols: Bad value
collect2: ld returned 1 exit status

The include of errno.h is a necessary appeasment.

--
To err is human, to aaaaaargh: pirate.
Have you been touched by His noodley appendage?