From: Solar Designer <solar@openwall.com>
To: musl@lists.openwall.com
Subject: Re: cluts review
Date: Wed, 13 Jul 2011 18:31:26 +0400 [thread overview]
Message-ID: <20110713143126.GB23463@openwall.com> (raw)
In-Reply-To: <20110713140002.GD16618@brightrain.aerifal.cx>
On Wed, Jul 13, 2011 at 10:00:02AM -0400, Rich Felker wrote:
> On Wed, Jul 13, 2011 at 05:54:23PM +0400, Solar Designer wrote:
> > OK. Why the "#define _POSIX_C_SOURCE 200809L //sigaction" vs. "#define
> > _XOPEN_SOURCE //sigaction" inconsistency, though? I think _XOPEN_SOURCE
> > is a safer bet here.
>
> I would really put this in the makefile for consistency. In principle,
> the values of feature test macros could lead to different versions of
> certain functions being used, possibly even with different
> interfaces/ABI, and cause problems with linking together object files
> compiled with different settings.
This makes sense to me. Historically, I tend to use the #define thing,
but you have a valid point for doing it in the Makefile instead.
> I think it's pretty hard to test functions that are part of a standard
> that depends on and includes C99, while not requiring a (mostly)
> C99-supporting compiler.
Of course, those newer functions would need to be skipped when cluts is
built and run on an older system.
> snprintf is C99 and POSIX and I think it's pretty reasonable to rely
> on it.
Agreed.
> Legacy systems can implement it as a hideous wrapper for
> tmpfile(), fprintf(), and fread() if they're not willing to fix their
> libcs. :-)
Yes, this is hideous.
Alexander
next prev parent reply other threads:[~2011-07-13 14:31 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-13 11:07 Solar Designer
2011-07-13 12:02 ` Luka Marčetić
2011-07-13 12:21 ` Solar Designer
2011-07-13 12:57 ` Luka Marčetić
2011-07-13 13:42 ` Rich Felker
2011-07-13 14:21 ` Solar Designer
2011-07-13 13:54 ` Solar Designer
2011-07-13 14:00 ` Rich Felker
2011-07-13 14:31 ` Solar Designer [this message]
2011-07-13 14:03 ` Rich Felker
2011-07-13 14:37 ` Solar Designer
2011-07-13 16:03 ` Solar Designer
2011-07-13 16:55 ` Luka Marčetić
2011-07-13 17:05 ` Solar Designer
2011-07-13 17:25 ` Luka Marčetić
2011-07-13 17:52 ` Solar Designer
2011-07-13 19:29 ` Luka Marčetić
2011-07-13 19:55 ` Rich Felker
2011-07-13 20:39 ` Solar Designer
2011-07-13 21:44 ` Solar Designer
2011-07-13 19:52 ` Rich Felker
2011-07-13 20:03 ` Rich Felker
2011-07-14 18:56 ` Rich Felker
2011-07-13 13:38 ` Rich Felker
2011-07-13 14:12 ` Solar Designer
2011-07-13 14:26 ` Rich Felker
2011-07-13 14:46 ` Solar Designer
2011-07-13 16:25 ` Luka Marčetić
2011-07-13 17:03 ` Solar Designer
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