[FFmpeg-devel] [PATCH]Allow libspeex detection also without pkg-config

Reimar Döffinger Reimar.Doeffinger at gmx.de
Wed Dec 31 14:23:54 CET 2014

On Wed, Dec 31, 2014 at 02:09:42PM +0100, Nicolas George wrote:
> Le primidi 11 nivôse, an CCXXIII, Reimar Döffinger a écrit :
> > I don't care much, but I still find not having to use pkg-config
> > somewhat more convenient in a cross-compilation environment where
> > you don't want to install all dependencies just to make it work with
> > pkg-config (or alternatively manually hack those files).
> Can you elaborate on that? I suspect there are ways of making this work
> easily with pkg-config, but you are to vague about the dependencies you want
> to avoid, so I can not suggest a way.

If I just download libspeex, libfdk_aac, libsdl etc. and build them
with CC=i686-mingw32-gcc ./configure, then without pkg-config I can
just add a few paths to -I and -L and I can link against them.
With pkg-config things tend to get inconsistent and more complicated.
For example some programs (no, I haven't tried lately so I don't
remember examples) generate them only on install, so you have to
make install. But to do that you have to figure out how to specify
a install directory.
Even if they don't, you still have to add the .pc paths in addition.
>From my point of view it's only more convenient if all you want to
use are things that are pre-packaged by your distribution.
Btw. would you be less opposed to a patch that added less obfuscation?
It looks to me like we would just require an extra "fallback -l" option
(preferably also a fallback extra cflags one) to use_pkg_config to allow
hiding all the extra complexity in one place, inside that function.
I agree that it gets messy if we add a special case to more and more

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