[MacPorts] #68850: No "mem_internal.h" file in libavutil directory

[MacPorts]

#68850: No "mem_internal.h" file in libavutil directory
-------------------------------+---------------------
 Reporter:  Behinder           |      Owner:  (none)
     Type:  defect             |     Status:  new
 Priority:  Normal             |  Milestone:
Component:  ports              |    Version:
 Keywords:  ffmpeg6,libavutil  |       Port:  ffmpeg6
-------------------------------+---------------------
 That is tricky error to notice, but it makes comskip build failed.The
 reason for that is because  comskip uses ` static DECLARE_ALIGNED(32,
 long, histogram)[256]` function/makro that is not recognized by clang. And
 rightfully so because that definition is in `mem_internal.h` file
 according to
 http://ffmpeg.org/doxygen/6.0/mem__internal_8h.html#a7a422611f83afb33d6e0da44184b548e

 However,that file is not found `ls
 /opt/local/libexec/ffmpeg6/include/libavutil` gives:

 {{{
 adler32.h                     dict.h
 hwcontext_qsv.h               rational.h
 aes.h                         display.h
 hwcontext_vaapi.h             rc4.h
 aes_ctr.h                     dovi_meta.h
 hwcontext_vdpau.h             replaygain.h
 ambient_viewing_environment.h downmix_info.h
 hwcontext_videotoolbox.h      ripemd.h
 attributes.h                  encryption_info.h
 hwcontext_vulkan.h            samplefmt.h
 audio_fifo.h                  error.h                       imgutils.h
 sha.h
 avassert.h                    eval.h                        intfloat.h
 sha512.h
 avconfig.h                    executor.h                    intreadwrite.h
 spherical.h
 avstring.h                    ffversion.h                   lfg.h
 stereo3d.h
 avutil.h                      fifo.h                        log.h
 tea.h
 base64.h                      file.h                        lzo.h
 threadmessage.h
 blowfish.h                    film_grain_params.h           macros.h
 time.h
 bprint.h                      frame.h
 mastering_display_metadata.h  timecode.h
 bswap.h                       hash.h                        mathematics.h
 timestamp.h
 buffer.h                      hdr_dynamic_metadata.h        md5.h
 tree.h
 camellia.h                    hdr_dynamic_vivid_metadata.h  mem.h
 twofish.h
 cast5.h                       hmac.h
 motion_vector.h               tx.h
 channel_layout.h              hwcontext.h                   murmur3.h
 uuid.h
 common.h                      hwcontext_cuda.h              opt.h
 version.h
 cpu.h                         hwcontext_d3d11va.h           parseutils.h
 video_enc_params.h
 crc.h                         hwcontext_drm.h               pixdesc.h
 video_hint.h
 csp.h                         hwcontext_dxva2.h             pixelutils.h
 xtea.h
 des.h                         hwcontext_mediacodec.h        pixfmt.h
 detection_bbox.h              hwcontext_opencl.h            random_seed.h
 }}}

 I tried this on ffmpeg6 with with and without nonfree components and file
 is not present.

-- 
Ticket URL: <https://trac.macports.org/ticket/68850>
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