Failed to build graphviz

[Greg Bell]

Hello folks.

I'm trying to update yt-dlp (a youtube-dl fork with additional features and fixes)

and incurred this…
Error: Failed to build graphviz: command execution failed

I'm unsure how to interpret the log.
Log output attached in zipped folder.

Running OS X 10.6.8 (my maximum OS for 2 GHz Intel Core 2 Duo)

Any advice would be appreciated.
Greg.

------------

Last login: Thu Feb 10 08:01:05 on ttys000
Greg-iMac:~ gregbell$ yt-dlp --version
2021.11.10.1
Greg-iMac:~ gregbell$ yt-dlp --update
Latest version: 2022.02.04, Current version: 2021.11.10.1
ERROR: It looks like you installed yt-dlp with MacPorts. Please use "sudo port selfupdate && sudo port upgrade yt-dlp" to update.
Greg-iMac:~ gregbell$ sudo port selfupdate && sudo port upgrade yt-dlp
Password:
--->  Updating MacPorts base sources using rsync
MacPorts base version 2.7.1 installed,
MacPorts base version 2.7.1 downloaded.
--->  Updating the ports tree
--->  MacPorts base is already the latest version

The ports tree has been updated. To upgrade your installed ports, you should run
  port upgrade outdated
--->  Computing dependencies for graphviz
--->  Fetching archive for graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://packages.macports.org/graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://mse.uk.packages.macports.org/graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://ema.uk.packages.macports.org/graphviz
--->  Building graphviz
Error: Failed to build graphviz: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_graphviz/graphviz/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Greg-iMac:~ gregbell$ sudo port upgrade outdated
--->  Computing dependencies for graphviz
--->  Fetching archive for graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://packages.macports.org/graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://mse.uk.packages.macports.org/graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://ema.uk.packages.macports.org/graphviz
--->  Building graphviz
Error: Failed to build graphviz: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_graphviz/graphviz/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Greg-iMac:~ gregbell$ sudo port clean graphviz
Password:
--->  Cleaning graphviz
Greg-iMac:~ gregbell$ sudo port selfupdate
--->  Updating MacPorts base sources using rsync
MacPorts base version 2.7.1 installed,
MacPorts base version 2.7.1 downloaded.
--->  Updating the ports tree
--->  MacPorts base is already the latest version

The ports tree has been updated. To upgrade your installed ports, you should run
  port upgrade outdated
Greg-iMac:~ gregbell$ sudo port upgrade outdated
--->  Computing dependencies for graphviz
--->  Fetching archive for graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://packages.macports.org/graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://mse.uk.packages.macports.org/graphviz
--->  Attempting to fetch graphviz-2.50.0_0+pangocairo+x11.darwin_10.x86_64.tbz2 from http://ema.uk.packages.macports.org/graphviz
--->  Fetching distfiles for graphviz
--->  Verifying checksums for graphviz
--->  Extracting graphviz
--->  Configuring graphviz
--->  Building graphviz                                  
Error: Failed to build graphviz: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_graphviz/graphviz/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Greg-iMac:~ gregbell$ 
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