[FFmpeg-devel] [PATCH] udp: Define _DARWIN_C_SOURCE

[Martin Storsjö]

On Tue, 5 Oct 2010, Ronald S. Bultje wrote:

> On Tue, Oct 5, 2010 at 12:37 PM, Martin Storsj? <martin at martin.st> wrote:
> > And I guess we don't want to enable any such define globally for the whole
> > build. Should we force users to manually specify _DARWIN_C_SOURCE via
> > --extra-cflags if they really want this
> 
> No.
> 
> > or is there any way to enable
> > this define only for one particular test in configure, where checking for
> > ipv6_mreq?
> 
> Why not use the current test, if it fails re-try it with
> _DARWIN_C_SOURCE defined, and then we also no longer need your patch
> to udp.c.

Hmm, I'm not all that confident with how to write that within the 
configure framework. I'll see if I can get it together.

Wouldn't you achieve the same thing with unconditionally adding 
_DARWIN_C_SOURCE to the list of defines if we're on darwin? It's added as 
a global define for the whole build in either case.

// Martin