[FFmpeg-devel] [PATCH] configure: support static libnpp [v2]

Hendrik Leppkes h.leppkes at gmail.com
Fri Jun 2 12:04:20 EEST 2017

On Fri, Jun 2, 2017 at 10:56 AM, Andreas HÃ¥kon
<andreas.hakon at protonmail.com> wrote:
> Hi,
> This patch is based on the original work done by Timo Rothenpieler, and his patch for static linking with libnpp:
> [http://ffmpeg.org/pipermail/ffmpeg-devel/2016-June/195078.html](https://ffmpeg.org/pipermail/ffmpeg-devel/2016-June/195078.html)
> Based in my recomendations now it's possible to link directly to libnpp* libraries without linking to the CUDA SDK:
> [http://trac.ffmpeg.org/ticket/6405](https://trac.ffmpeg.org/ticket/6405)
> http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=2d978d1c721ae69a9007b530153067736d4ddc79
> Then I created an updated version of the patch.
> By default the linking is the regular dynamic link (aka "--disable-libnpp-static" config).
> However, if you like to compile statically with "libnpp*_static.a" then add these parameters:
> $ configure ... --enable-nonfree --enable-libnpp --enable-libnpp-static --enable-cuda --extra-cflags="-I/usr/local/cuda/include/" --extra-ldflags="-L/usr/local/cuda/lib64/"
> This assumes the CUDA SDK is installed in "/usr/local/cuda".

I don't like that there is a separate configure option. We can link to
other libraries dynamically or statically depending on what is found,
without needing two configure options per library.

- Hendrik

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