port devel/glib20

[Ronald Klop]

Hi maintainer of devel/glib20,

On the build server of aarch64/13-current this port is broken. This prevent quite some other ports to build; I'm interested in openjdk11 for example.
build logs, ipv6 only: http://ampere2.nyi.freebsd.org/data/main-arm64-default/p560362_s58661b3ba9/logs/errors/glib-2.66.4_1,1.log

It ends with:
[292/1079] cc  -o glib/tests/test-spawn-echo glib/tests/test-spawn-echo.p/test-spawn-echo.c.o -L/usr/local/lib -Wl,--as-needed -Wl,--allow-shlib-undefined -Wl,-O1 -O2 -pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -fstack-protector-strong -Wl,--start-group glib/libglib-2.0.so.0.6600.4 -lm -pthread -lintl -Wl,--end-group '-Wl,-rpath,$ORIGIN/..' -Wl,-rpath-link,/wrkdirs/usr/ports/devel/glib20/work/glib-2.66.4/_build/glib
[293/1079] /wrkdirs/usr/ports/devel/glib20/work/glib-2.66.4/_build/glib/gtester -k --quiet --i-know-this-is-deprecated -o glib/tests/tmpsample.xml --test-arg=--gtester-selftest /wrkdirs/usr/ports/devel/glib20/work/glib-2.66.4/_build/glib/gtester
FAILED: glib/tests/tmpsample.xml 
/wrkdirs/usr/ports/devel/glib20/work/glib-2.66.4/_build/glib/gtester -k --quiet --i-know-this-is-deprecated -o glib/tests/tmpsample.xml --test-arg=--gtester-selftest /wrkdirs/usr/ports/devel/glib20/work/glib-2.66.4/_build/glib/gtester
[294/1079] /usr/local/bin/meson --internal exe --capture gobject/glib-enumtypes.h -- /wrkdirs/usr/ports/devel/glib20/work/.bin/python3 gobject/glib-mkenums --template ../gobject/glib-enumtypes.h.template ../gobject/../glib/gunicode.h
ninja: build stopped: subcommand failed.
===> Compilation failed unexpectedly.
Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to
the maintainer.
*** Error code 1

Stop.
make: stopped in /usr/ports/devel/glib20
=>> Cleaning up wrkdir
===>  Cleaning for glib-2.66.4_1,1
build of devel/glib20 | glib-2.66.4_1,1 ended at Tue Jan  5 02:17:31 UTC 2021
build time: 00:03:13
!!! build failure encountered !!!

Is this known? Any thoughts how it should be fixed? And do I need to make a PR about it?

Regards,
Ronald.