[FFmpeg-devel] configure: Prioritize 'sdl2-config'-check

[Reino Wijnsma]

https://trac.ffmpeg.org/ticket/6377#comment:2:
> Inadequate for building FFPlay, yes. But perhaps not for other software.
> Are there any downsides to my proposition?

I could of course contact the sdl2 developers, but when 'sdl2-config'
already has the librarylist setup right to build FFPlay, why not just do
the 'sdl2-config'-check first? Is there are reason why FFMpeg's
'configure' does the 'check_pkg_config sdl2'-check first?