configure: WARNING: unrecognized options: --with-system-ucpp https://github.com/LibreOffice/core/commit/a8485d558fab53291e2530fd9a1be581c1628deb " [API CHANGE] Remove deprecated idlc and regmerge from the SDK * Client code must replace uses of idlc and regmerge with uses of unoidl-write, see the changes to odk/examples/ and ure/source/uretext/ in 40f2aee "Provide unoidl-write also for the SDK" for examples. * The new types.rdb format is not compatible with LibreOffice < 4.1. Clients generating extensions containing such files are advised to use appropriate LibreOffice-minimal-version elements. * For compatibility with old extensions, reading the legacy types.rdb format is still supported. * The SDK no longer ships an idl/ sub-directory containing the udkap and offapi .idl files (as, unlike idlc, unoidl-write does not need them). odk/config/cfgWin.js had to be adapted to look (somewhat arbitrarily) for an examples/ sub-directory instead of idl/ when checking for "an sdk folder". gb_UnoApi_package_idlfiles became unused and has been removed. * The idlc and regmerge executables have been removed. Module idlc has been removed except for idlc/test/parser/, which is also used by CustomTarget_unoidl/unoidl-write_test, and which may eventually be moved into module unoidl. Module external/ucpp and the corresponding configure options have also been removed."
https://gitweb.gentoo.org/repo/gentoo.git/commit/app-office/libreoffice?id=72dce62644ba328f3b6040997e7df055080d83b5
