Can't build "mpv"

[Dave Horsfall]

MacBook Pro (13-inch, Mid 2010), High Sierra 10.13.6.

Dunno what it is so it must be a dependency of something, but it fails 
with:

    :info:configure meson.build:1474:21: ERROR: Command `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_multimedia_mpv/mpv/work/mpv-0.37.0/TOOLS/macos-sdk-version.py` failed with status 127.

It's so verbose that I can't figure out what's wrong; the "main.log" is 
attached.

Thanks.

-- Dave
-------------- next part --------------
--->  Computing dependencies for mpv
--->  Fetching archive for mpv
--->  Attempting to fetch mpv-0.37.0_0+audiocd+bluray+bundle+dvd+libarchive+network+opengl+osd+python311+rubberband.darwin_17.x86_64.tbz2 from http://packages.macports.org/mpv
--->  Attempting to fetch mpv-0.37.0_0+audiocd+bluray+bundle+dvd+libarchive+network+opengl+osd+python311+rubberband.darwin_17.x86_64.tbz2 from http://kmq.jp.packages.macports.org/mpv
--->  Attempting to fetch mpv-0.37.0_0+audiocd+bluray+bundle+dvd+libarchive+network+opengl+osd+python311+rubberband.darwin_17.x86_64.tbz2 from http://mirror.fcix.net/macports/packages/mpv
--->  Fetching distfiles for mpv
--->  Attempting to fetch mpv-0.37.0.tar.gz from http://distfiles.macports.org/mpv
--->  Verifying checksums for mpv                                               
--->  Extracting mpv
--->  Applying patches to mpv
--->  Configuring mpv
Error: Failed to configure mpv: consult /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_multimedia_mpv/mpv/work/build/meson-logs/meson-log.txt
Error: Failed to configure mpv: configure failure: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_multimedia_mpv/mpv/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there
is a bug.