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Message-ID: <20111123235017.BEE.0@paddy.troja.mff.cuni.cz>
Date: Thu, 24 Nov 2011 00:12:23 +0100 (CET)
From: Pavel Kankovsky <peak@...o.troja.mff.cuni.cz>
To: owl-dev@...ts.openwall.com
Subject: Re: glibc' time.h dependency on stdlib.h (was: glibc
update)
On Mon, 21 Nov 2011, Vasiliy Kulikov wrote:
> build@...atros:~ $ gcc -D_GNU_SOURCE -Wall a.c -o a
> In file included from a.c:1:0:
> /usr/include/time.h:226:5: error: unknown type name '__locale_t'
>
> A bug in glibc headers dependency? Or time.h really must be included
> only after explicit stdlib.h, which was not forced by our old glibc?
It is a bug.
strftime_l and strftime_l used to be GNU extensions but the latter
function was adopted by POSIX 2008. #ifdef __USE_GNU was split into
#ifdef __USE_XOPEN2K8 followed by #ifdef __USE_GNU but there is only one
#include <xlocale.h> in the first conditional section. See
<http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=6cbe890a9d379d85fe849a8317010f05ace00809#patch14>
It appears __USE_GNU is defined when your test case is compiled but
__USE_XOPEN2K8 is not defined. This should never happen. _GNU_SOURCE is
supposed to all POSIX features including __USE_XOPEN2K8 (indirectly by
#define _POSIX_C_SOURCE 200809L).
--
Pavel Kankovsky aka Peak / Jeremiah 9:21 \
"For death is come up into our MS Windows(tm)..." \ 21st century edition /
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