Re: [Gcl-devel] Patch: adapt to newer autoconf versions

[Jerry James]

On Thu, Nov 20, 2008 at 5:13 PM, Gabriel Dos Reis
<address@hidden> wrote:
> So, in fact, we want to check for C99 features, not GNU sources; right?
>
> -- Gaby

RIght.  On glibc-based systems, defining _GNU_SOURCE causes
_ISOC99_SOURCE to also be defined (see /usr/include/features.h), as
well as _POSIX_C_SOURCE, _XOPEN_SOURCE, and several others.  In short,
defining _GNU_SOURCE says to activate all features.
-- 
Jerry James
http://loganjerry.googlepages.com/