kwin's CMakeLists issues find_package/pkg_check_modules REQUIRED for
several packages that are in the config and built but were never declared
as deps, so they were never staged into kwin's sysroot: libxcvt,
libdisplay-info, kglobalacceld, libinput, lcms2. Audited the CMakeLists
for REQUIRED names and cross-checked against recipes that exist, rather
than adding them one failed configure at a time.
KF6_HOST_TOOLING must point at the HOST's system KF6 (/usr/lib/cmake), as
konsole already does. src/wayland/tools needs a native Qt/KF6 prefix;
pointing it at build/qt-host-build instead fails differently, because that
tree carries Qt host tooling but no KF6, and KF6AuthConfig /
KF6KCMUtilsConfig then fail their include().
systembell: TEMPORARY DEBT, narrowly scoped and documented at the call
site. It is the only consumer of Canberra in KWin, yet
find_package(Canberra REQUIRED) is ungated, so one optional audible-bell
plugin blocks the whole compositor. The in-tree WIP libcanberra recipe
depends on gtk3 and is itself marked 'no audio backend supported'; a local
recipe using --disable-gtk3 plus the null backend is the intended fix.
Visual bell and every other effect are unaffected.
vasilito
a19de6f5c9