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Date: Sat, 22 Jun 2024 15:49:01 +0200
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Subject: Re: Analyze dependencies of a cygwin package
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From: Federico Kircheis via Cygwin <cygwin@cygwin.com>
Reply-To: Federico Kircheis <federico@kircheis.it>
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On 22/06/2024 10.17, Takashi Yano via Cygwin wrote:
> On Sat, 22 Jun 2024 07:36:19 +0200
> Federico Kircheis wrote:
>> ffmpeg, as far as I've could see, on Debian does not seem to depend
>> transitively on clang.
> 
> ffmpeg on fedora is built with opencl-enabled.
> https://src.fedoraproject.org/rpms/ffmpeg/blob/rawhide/f/ffmpeg.spec#_702
> 
> I just followed to it. However, cygwin's OpenCL (ocl-icd) suppourts only
> pocl as backend which depends on clang. Therefore, on the second thought,
> enabling opencl for ffmpeg has more disadvantages than advantages.
> 
> I'll release ffmpeg 7.0.1-2 which disables opencl.
> 
>> I was already told once that I probably can leave REQUIRES out.
>>
>> Currently I'm using it for setting up a minimal test environment where I
>> install only the packages listed in REQUIRES.
>> Can cygport give me that information if I do not write any REQUIRES?
>> Last time I asked the answer was no, and thus I decided to keep it to
>> ease testing on my side.
> 
> Without REQUIRES line, "cygport cmus all" with above patch gives me:
> ....
>>>> cmus requires: cygwin libao4 libavcodec61 libavformat61 libavutil59 libcddb2 libcdio18 libcdio_cdda2 libdiscid0 libFLAC12 libiconv2 libmad0 libmodplug1 libmpcdec7 libncursesw10 libopusfile0 libpulse0 libswresample5 libvorbisfile3 libwavpack1
> 
> I guess this is as you expect (if libav* are free from clang dependency),
> isn't it?
> 

Yes, it looks good.

I'll drop the REQUIRES the next time I'll upload a package then.

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