Re: [PATCH 2/4] configure.ac: Explicitly enable subject-objects for automake 1.11

Hi,

On 10.07.2014 09:02, Bryce W. Harrington wrote:
[..]
> (I'm noticing a lot of misc. new warnings building with gcc 4.8,
> particularly with --enable-qt as g++ seems fussier about things.  But
> I've only given attention to a couple of the really noisy warnings so
> far).

Thanks for looking into this. Debian testing recently gave me a new GCC version 
and I've just been ignoring the fact that I can't build cairo any more. If only 
the day had more hours...

From

[...]
>    https://bugs.freedesktop.org/show_bug.cgi?id=69874

"Yeah.  And subdir-objects is broken for the way we have our build set up at the 
moment (libdricore built from a separate directory, on the same .c files as core)."

That's exactly what cairo is doing with cairo-time.c. Eric Anholt didn't say in 
his comment what exactly can go wrong, but I still think that we need to "hack 
this up differently" before we can go to subdir-objs.

[...]
> So yeah, looks like you're right.  I'll withdraw this patch.
[...]

Any ideas how we could fix things properly?
We could move all of cairo-time.c into cairo-time.h, but that seems like a hack.
We could create a libtool convenience library containing cairo-time.c and link 
it into both places that need it, but that seems like too much work for too 
little gain.
We could make the _cairo_time functions part of cairo's API, but obviously 
that's a bad idea.

Cheers,
Uli
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