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From: Rich Felker <dalias@aerifal.cx>
To: musl@lists.openwall.com
Subject: Re: Best bikeshed ever (feature test macros)
Date: Sun, 2 Sep 2012 13:13:12 -0400	[thread overview]
Message-ID: <20120902171312.GF27715@brightrain.aerifal.cx> (raw)
In-Reply-To: <50439211.6050504@purdue.edu>

On Sun, Sep 02, 2012 at 01:06:25PM -0400, Gregor Richards wrote:
> >Leave it as is, this actually helps find bugs in software. A real
> >world example is accidentally utilizing gnu extensions in mruby
> >(see github mruby bug page for more info).
> 
> The same can be accomplished on any modern libc by using -std=c89 or
> -std=c99. You shouldn't have to port to a new libc to find these

I'm a bit confused because I suspect the code in question actually
wanted POSIX, not just baseline C...

> problems, nor should said new libc be designed in such a way that
> the majority of software doesn't work on it without additional
> complication. Especially when, as I will repeat over and over again,
> going through the additional complication to supposedly make your
> code more portable WILL INVARIABLY MAKE YOUR CODE LESS PORTABLE.

This only applies if you're using extensions. And actually, I'm not
sure it's the case. If you add -D_GNU_SOURCE (and no other feature
test macros), does that really _hide_ any interfaces on BSD, Darwin,
Solaris, or other relevant systems?

Rich


  reply	other threads:[~2012-09-02 17:13 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-24 21:41 Rich Felker
2012-08-24 22:24 ` Gregor Richards
2012-08-24 23:59 ` Szabolcs Nagy
2012-08-25  7:35 ` orc
2012-08-25 12:32   ` Rich Felker
2012-08-25 15:29     ` orc
2012-08-25  9:11 ` Luca Barbato
2012-08-27 18:08 ` Isaac Dunham
2012-08-29  5:34 ` philomath
2012-08-29 13:49   ` Rich Felker
2012-08-29 14:01     ` Gregor Richards
2012-08-29 14:43       ` Rich Felker
2012-08-29 15:08         ` Bobby Bingham
2012-08-29 15:23           ` Rich Felker
2012-08-29 17:17             ` Gregor Richards
2012-08-29 17:59       ` Isaac Dunham
2012-08-29 18:08         ` Rich Felker
2012-09-02  8:48 ` Arvid E. Picciani
2012-09-02 15:19   ` Rich Felker
2012-09-02 15:27     ` Arvid E. Picciani
2012-09-02 15:44       ` Rich Felker
2012-09-02 17:00 ` nwmcsween
2012-09-02 17:06   ` Gregor Richards
2012-09-02 17:13     ` Rich Felker [this message]
2012-09-02 17:18       ` Gregor Richards
2012-09-02 17:10   ` Rich Felker

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