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Date: Thu, 20 Jan 2011 19:58:00 -0000
Message-ID: <AANLkTikbaz1tq9wY=1C-zjneMubOpgTnByUey19TAuFi@mail.gmail.com>
Subject: Re: g++ cross distro compilation problem
From: Jonathan Wakely <jwakely.gcc@gmail.com>
To: Nick Stokes <randomaccessiterator@gmail.com>
Cc: gcc-help@gcc.gnu.org
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On 20 January 2011 19:28, Nick Stokes wrote:
>
> Great! This indeed revealed it. =A0In /usr/include/locale.h (same
> location, line =A0133, in both distros actually) =A0there is #ifdef
> __USE_GNU =A0on CentOS version, which is =A0#ifdef __USE_XOPEN2K8 in
> SUSE's version. =A0 So, in fact if I define `__USE_XOPEN2K8' =A0while
> compiling on SUSE, it works. Hmm, go figure.. This can not be the
> right way to do this. What am I missing?

I don't know why they're different (on my glibc 2.12 system the
uselocale definition is guarded by __USE_GNU, just like your CentOS
system) but it looks like you've found the solution.

Users are not supposed to use the __USE_XXX macros, instead you should
define _GNU_SOURCE to enable __USE_GNU and _POSIX_C_SOURCE=3D200809L (or
greater) to enable __USE_XOPEN2K8.