[Bug 694416] Passing of $AS, etc to libav configure breaks on some platforms

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=694416

gohai <gottfried.haider at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gottfried.haider at gmail.com

--- Comment #5 from gohai <gottfried.haider at gmail.com> ---
This is an issue in 1.12 on the Raspberry Pi, as the patch by Sebastian got
reverted [1] shortly before the release.


The behavior without Sebastian's patch:

-- config.log --
gas-preprocessor.pl -arch arm -as-type -- as -v
unknown as type: '--'
(...)
as: unrecognized option '-_ISOC99_SOURCE'
-- config.log --

The issues seem to be that (a) $as_type in the FFmpeg configure script ends up
as empty string, causing the "unknown as type" error, and (b) compile-time
flags such as "-D_ISOC99_SOURCE" trip up as. (I do have gas-preprocessor.pl
installed.)


The behavior with Sebastian's patch:

gst-libav compiles successfully on the Raspberry Pi.


[1]
https://github.com/GStreamer/gst-libav/commit/02fc07cfa99d03888bf25f1684abff9d073b3d37

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