[debian-mysql] Regression in crossbuilding MariaDB

[Otto Kekäläinen]

Hello!

While working on
https://salsa.debian.org/mariadb-team/mariadb-server/-/merge_requests/46
(Import new upstream version 10.11.3 to Debian) I noticed that
amd64->arm64 crossbuilding no longer works.

The CI shows that Salsa-CI job `test-crossbuild-arm64` no longer
passes. Based on Salsa-CI runs I can see that it [still worked in
upstream commit
e55e761e](https://salsa.debian.org/otto/mariadb-server/-/jobs/4217220)
but [failed in upstream commit
06b443be](https://salsa.debian.org/otto/mariadb-server/-/jobs/4217664),
thus some of these commits in between regressed it:

```
06b443be34e Nes CC 3.3
4a668c18926 MDEV-29401 InnoDB history list length increased in 10.6
compared to 10.5
f272463b028 Cleanup of MDEV-14974: --port ignored for --host=localhost
bb1d1dc8465 Merge 10.5 into 10.6
c5e50c48bba MDEV-30837: Remove usage of AWK in autobake-debs.sh
f99a891858a MDEV-30837: Remove usage of AWK from Debian init and
postinst scripts
5740638c4c3 MDEV-31132 Deadlock between DDL and purge of InnoDB history
d4265fbde58 MDEV-26055: Correct the formula for adaptive flushing
898320b5f8a MDEV-30804 addendum for 10.6+ branches
c22ab93f8af MDEV-26827 fixup: Prevent a hang in LRU eviction
818d5e48146 Merge 10.5 into 10.6
0976afec889 MDEV-31114 Assertion !...is_waiting() failed in
os_aio_wait_until_no_pending_writes()
2c567b2fa37 MDEV-30996  insert.. select in presence of full text index
freezes all other commits at commit time
51e62cb3b3b MDEV-26782 InnoDB temporary tablespace: reclaiming of free
space does not work
204e7225dce Cleanup: MONITOR_EXISTING trx_undo_slots_used, trx_undo_slots_cached
86767bcc0f1 MDEV-29593 Purge misses a chance to free not-yet-reused undo pages
40eff3f8681 MDEV-26827 fixup: hangs and !os_aio_pending_writes()
assertion failures
```

Example of error in (cross)build log:
```
Building CXX object CMakeFiles/cmTC_9b8d6.dir/src.cxx.o
/usr/lib/ccache/c++ -DHAVE_INCONSISTENT_MISSING_DESTRUCTOR_OVERRIDE
-g -O2 -ffile-prefix-map=/builds/otto/mariadb-server/debian/output/source_dir=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -pie -fPIC
-fstack-protector --param=ssp-buffer-size=4 -Wall -Wextra
-Woverloaded-virtual -Wconversion -g -Wsuggest-override
-Winconsistent-missing-destructor-override -o
CMakeFiles/cmTC_9b8d6.dir/src.cxx.o -c
/builds/otto/mariadb-server/debian/output/source_dir/builddir-native/CMakeFiles/CMakeScratch/TryCompile-Nn98w6/src.cxx
c++: error: unrecognized command-line option
'-Winconsistent-missing-destructor-override'
gmake[3]: *** [CMakeFiles/cmTC_9b8d6.dir/build.make:78:
CMakeFiles/cmTC_9b8d6.dir/src.cxx.o] Error 1
gmake[3]: Leaving directory
'/builds/otto/mariadb-server/debian/output/source_dir/builddir-native/CMakeFiles/CMakeScratch/TryCompile-Nn98w6'
gmake[2]: *** [Makefile:127: cmTC_9b8d6/fast] Error 2
```

Is this enough information for somebody to guess what regressed?

- Otto