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Re: g++ cross distro compilation problem
On 20 January 2011 19:28, Nick Stokes wrote:
>
> Great! This indeed revealed it. ?In /usr/include/locale.h (same
> location, line ?133, in both distros actually) ?there is #ifdef
> __USE_GNU ?on CentOS version, which is ?#ifdef __USE_XOPEN2K8 in
> SUSE's version. ? So, in fact if I define `__USE_XOPEN2K8' ?while
> 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=200809L (or
greater) to enable __USE_XOPEN2K8.