gtk3 fails

[Henning Hraban Ramm]

Am 10.08.24 um 15:47 schrieb Henning Hraban Ramm:
>
> :info:configure meson.build:433:17: ERROR: Automatic wrap-based 
> subproject downloading is disabled
> :info:configure A full log can be found at 
> /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gnome_gtk3/gtk3/work/build/meson-logs/meson-log.txt

In the meson log I found:

Pkg-config error with 'epoxy': Could not generate cflags for epoxy:
Package gl was not found in the pkg-config search path.
Perhaps you should add the directory containing `gl.pc'
to the PKG_CONFIG_PATH environment variable
Package 'gl', required by 'epoxy', not found

There’s no "gl" port (stupid name, hard to search for). Is this OpenGL 
or what? Which ports should I check?

Hraban