dev-db/firebird seems to install fine - https://bugs.gentoo.org/905891 unmasking "firebird" use flag - libreoffice installed - works without any issue. i also tried to enable al LIBREOFFICE_EXTENSIONS - also seems no issues
*** This bug has been marked as a duplicate of bug 905891 ***
firebird USE flag for libreoffice still masked, though firebird already keyworded
Yeah, more of a "depends on", I guess.
postgres USE flag also can be unmasked. according to notes: "USE=postgres requires dev-db/postgresql[kerberos] (USE masked)" but i have it installed with USE=kerberos: # emerge dev-db/postgresql -pvq [ebuild R ] dev-db/postgresql-15.2 USE="doc icu kerberos ldap lz4 nls pam perl python readline server ssl systemd tcl threads uuid xml zlib zstd -debug -llvm (-selinux) -static-libs" PYTHON_SINGLE_TARGET="python3_11 -python3_10"
i believe same for "mask app-office/libreoffice java extensions" - that i enabled just for testing - and everything installed without any issue # emerge libreoffice -pvq [ebuild R ] app-office/libreoffice-7.5.3.2 USE="accessibility base bluetooth branding cups dbus firebird googledrive gstreamer gtk java kde ldap mariadb odk pdfimport postgres -clang (-coinmp) -custom-cflags -debug (-eds) -test -vulkan" LIBREOFFICE_EXTENSIONS="nlpsolver scripting-beanshell scripting-javascript wiki-publisher" PYTHON_SINGLE_TARGET="python3_11 -python3_10"