[FFmpeg-devel] [PATCH 3/3] configure: speedup x2-x8

[Michael Niedermayer]

On Sat, Aug 25, 2018 at 06:11:10PM +0000, avih wrote:
> For overview see:
> http://ffmpeg.org/pipermail/ffmpeg-devel/2018-August/233665.html
> 
> Attached is patch 3/3 which was at "main.patch" of that message.
> 
> After the previous speedups, configure spent 20-60% of its runtime
> at check_deps(). It's particularly slow with bash. After some local
> optimizations - mainly avoid pushvar/popvar and abort early in one
> notable case (empty deps), it's now x4-x25 faster.
> 

patches 1-3 work here fine on linux x86-64 / 32, arm, mips, wine+mingw32/64

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Everything should be made as simple as possible, but not simpler.
-- Albert Einstein
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