On OpenBSD 7.5, Lazarus fails to build

[TCH68k]

After sysupgrade and sysmerge everything was still working, but after pkg_add -u finished, Lazarus died and i cannot build it either:

gmake -C ide ide
gmake[1]: Entering directory '/usr/ports/pobj/lazarus-2.2.0_0/lazarus/ide'
/bin/mkdir -p ../units/x86_64-openbsd/gtk2
../tools/svn2revisioninc .. revision.inc
Created /usr/ports/pobj/lazarus-2.2.0_0/lazarus/ide/revision.inc for revision: Unversioned directory
An unhandled exception occurred at $00000B4CF72602F2:
EAccessViolation: 
  $00000B4CF72602F2 line 177 of /usr/src/lib/libc/stdlib/atexit.c
  $00000B4CF72727E5 line 54 of /usr/src/lib/libc/stdlib/exit.c
  $00000B4A04264983

An unhandled exception occurred at $00000B4A0427FB50:
EAccessViolation: 
  $00000B4A0427FB50
  $00000B4CF72727E5 line 54 of /usr/src/lib/libc/stdlib/exit.c
  $00000B4A04264983

And then this latter error message repeats forever. Full log is here: http://oscomp.hu/depot/lazarus_make_install.log
This time cd /usr/ports/devel/lazarus && make clean='all depends' happened before make install.

[TCH68k]

I've managed to pinpoint which package's update kills Lazarus: it is the update of the package(s?) .libs1-harfbuzz-2.9.1+.libs1-harfbuzz-5.2.0+harfbuzz-8.2.1; when updated to harfbuzz-8.3.0, Lazarus dies with the error message of:

(lazarus:40076): GLib-GObject-CRITICAL **: 15:58:36.054: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
[FORMS.PP] ExceptionOccurred 
  Sender=EAccessViolation
  Exception=Access violation
  Stack trace:
  $000008A747750768
  $000008A74774E80E
  $000008A74774F02F
  $000008A7664A56BE
  $000008A74773A44D
  $000008A7664A3B16
  $000008A7663D7572
  $000008A747734410
  $000008A747751052
  $000008A74774E80E
  $000008A74774F02F
  $000008A7664A56BE
  $000008A74773A44D
  $000008A7664A3B16
  $000008A4E5F94652  FREESTYLEOBJECT,  line 7715 of gtk2proc.inc
  $000008A4E5F94777  RELEASEALLSTYLES,  line 7742 of gtk2proc.inc
  $000008A4E5E2BFF1  FREEALLSTYLES,  line 1650 of gtk2widgetset.inc
[FORMS.PP] ExceptionOccurred

The dependencies of this (these?) package(s?) (glib2, lzo2, png, cairo, graphite2) have been ruled out, by pre-installing them before. It's harfbuzz. Also, if i do a full pkg_add -u, (which will update gtk+2 and the rest) then it is the same, so it is not something missing. Another ABI-breakage after 7.2->7.3 i presume, but this time i cannot even rebuild Lazarus... :(

[TCH68k]

Even the freshly compiled Lazarus 3.4 crashes because of harfbuzz 8.3.0:
https://forum.lazarus.freepascal.org/index.php/topic,67536.msg520130.html#msg520130