[Buildroot] [PATCH] luajit: bug fix - prevent target CFLAGS from being used in host tool compile.
Danomi Manchego
danomimanchego123 at gmail.com
Sun Aug 26 16:14:34 UTC 2012
Hi Thomas,
> It fixes build issues like
>
http://autobuild.buildroot.net/results/022b73a989734d800225c91f419f18f4fc31c264/build-end.log.
This link doesn't work for me, but I'll take your word for it.
> could you share what is your Buildroot configuration that uses
> -mfpu=neon -mfloat-abi=softfp ?
0
Right now, we are on a rather old version of buildroot, but looking forward
to updating to the latest when 2012-08 is officially released. So it's
probably best to wait until then.
There are a couple of reasons why we added these two flags to "Target
Optimizations". For one, the options that are pre-baked into the external
toolchain wrapper don't capture enabling neon optimization. But, more
importantly, I wasn't able to get ffmpeg to recognize that neon
optimizations were applicable until I (1) added the --cpu=cortex-a8 (for
which I submitted a patch, never got any comments,
http://patchwork.ozlabs.org/patch/154307/), and (2) passed in the softfp
option as part of the --extra-cflags specified during the package configure
step (for which I never actually submitted a patch). Hopefully, ffmpeg is
unique in this regard ...
Danomi -
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