Re: problem building libavcodec59-5.0-shlibs on MacOS 10.11 (El Cap) / Xcode 8.2.1

> On Apr 27, 2022, at 05:28, Hanspeter Niederstrasser <[email protected]> wrote:
> 
> On 4/26/22 9:41 PM, Scott Hannahs via Fink-users wrote:
>>> On Apr 26, 2022, at 9:06 PM, Hanspeter Niederstrasser <[email protected]> wrote:
>>> 
>>> Can you selfupdate and try libavcodec59-5.0-shlibs-5.0.1-1 ? I don't know if that was fixed there but might as well try.
>>> 
>>> Hanspeter
>> I get the same sort of thing…   My bad not self updating, I had this error and then didn’t get back to it for awhile.  I hadn’t seen an update to that particular library.  Possibly ffmpeg 5.0 can’t be built on Mac OS 10.11??
>> -Scott
>> src/libavfilter/metal/utils.h:50:40: error: expected function body after function declarator
>>                                        API_AVAILABLE(macos(10.11), ios(8.0));
>>                                        ^
>> src/libavfilter/metal/utils.h:57:48: error: expected function body after function declarator
>>                                                API_AVAILABLE(macos(10.11), ios(8.0));
>>                                                ^
>> src/libavfilter/metal/utils.m:22:6: error: no previous prototype for function 'ff_metal_compute_encoder_dispatch' [-Werror,-Wmissing-prototypes]
>> void ff_metal_compute_encoder_dispatch(id<MTLDevice> device,
>>      ^
>> src/libavfilter/metal/utils.m:50:19: error: no previous prototype for function 'ff_metal_texture_from_pixbuf' [-Werror,-Wmissing-prototypes]
>> CVMetalTextureRef ff_metal_texture_from_pixbuf(void *ctx,
>>                   ^
>> 4 errors generated.
>> make: *** [/sw/src/fink.build/libavcodec59-5.0-shlibs-5.0.1-1/ffmpeg-5.0.1/ffbuild/common.mak:84: libavfilter/metal/utils.o] Error 1
>> make: Leaving directory '/sw/src/fink.build/libavcodec59-5.0-shlibs-5.0.1-1/ffmpeg-5.0.1/finkbuild'
>> ### execution of /tmp/fink.eLCzD failed, exit code 2
>> ### execution of /tmp/fink.OBhj3 failed, exit code 2
> 
> Does it work if you add this line to PatchScript?
> 
> perl -ni -e 'print unless /    check_cflags -Werror=missing-prototypes/‘ configure

No, I get the same error.

gcc -I. -Isrc/ -I/sw/include -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I/sw/src/fink.build/libavcodec59-5.0-shlibs-5.0.1-2/ffmpeg-5.0.1/compat/dispatch_semaphore -DPIC -DZLIB_CONST -DHAVE_AV_CONFIG_H -DBUILDING_avfilter -fno-stack-check -I/sw/lib/libspeex1/include -I/sw/include -I/opt/X11/include -std=c11 -Werror=partial-availability -fomit-frame-pointer -fPIC -I/opt/X11/include -I/opt/X11/include -I/opt/X11/include -pthread -I/sw/include -I/sw/include -I/s                                       ^
src/libavfilter/metal/utils.h:57:48: error: expected function body after function declarator
                                               API_AVAILABLE(macos(10.11), ios(8.0));
                                               ^
src/libavfilter/metal/utils.m:22:6: warning: no previous prototype for function 'ff_metal_compute_encoder_dispatch' [-Wmissing-prototypes]
void ff_metal_compute_encoder_dispatch(id<MTLDevice> device,
     ^
src/libavfilter/metal/utils.m:50:19: warning: no previous prototype for function 'ff_metal_texture_from_pixbuf' [-Wmissing-prototypes]
CVMetalTextureRef ff_metal_texture_from_pixbuf(void *ctx,
                  ^
2 warnings and 2 errors generated.

I am unclear on the dependencies here.  I think the main program I installed was ffmpeg.  Now in updating it is trying to update libavcodec59 but in doing so it is building the code from within ffmpeg as a subdirectory.  If I read the error correctly it is not the missing-prototype but the "error: expected function body after function declarator”.

-Scott

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