[FFmpeg-devel] [PATCH][RFC] build: Fix uncoded_frame dependencies

[Derek Buitenhuis]

On 5/14/2014 6:02 PM, Nicolas George wrote:
> That should not be a problem, except as a negligible overhead parsing the
> Makefile: these lines show _how_ to build the file, they are never taken
> into account if make does not decide to actually build them.

I mean, you should not be able to type:

    make tools/uncoded_frame

and have it run when it can't actually be built successfully. Our Makefile
doesn't allow this for any other rule, e.g. 'make tools/cws2fws' will refuse to
build if zlib is missing or disabled.

My make-fu level isn't high enough to know exactly how to fix this without an ifeq,
or why it happens specifically for tools/uncoded_frame -- that's why it's an RFC.

- Derek