[debian-mysql] Bug#920365: Bug#920365: Bug#920365: mariadb_config: improve cross compilation support

[Otto Kekäläinen]

Thanks!

Tested patch in
https://salsa.debian.org/mariadb-team/mariadb-10.5/-/commit/2a8304051a3107fe828314b66b33aca7ecb863d4

Builds went fine, so I'll add this commit on top of the master branch.


The topic of cross-building tangents the multi-arch definitions in the
control file which currently are not correct and I am not sure on how
to correctly solve it without regressions:

W dependency-is-not-multi-archified libmariadb-dev-compat depends on
libmariadb-dev (multi-arch: no)
W dependency-is-not-multi-archified libmariadbd-dev depends on
libmariadb-dev (multi-arch: no)
W dependency-is-not-multi-archified mariadb-plugin-gssapi-client
depends on mariadb-client-10.5 (multi-arch: no)