see commit message of
external/firebird/0001-Make-comparison-operator-member-functions-const.patch.1
for details
Change-Id: I559e4b6ef2dbf3800ff5013dcde078d69296d2fb
Reviewed-on: https://gerrit.libreoffice.org/81261
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
