this makes it possible to exclude modules from the build without moving
their sources out of the way. substitutes the much-requested -no-webkit.
not adding a symmetrical option, as it is relatively pointless:
to build only specific "leaf" modules, you only need to run
"make module-qt<module> ..." once you configured. and removing
particular "intermediate" modules is achieved with this very option.
Task-number: QTBUG-26697
Change-Id: I25cebdbd029885a2c653c4cde696f9bb78691768
Reviewed-by: Tuukka Turunen <tuukka.turunen@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
3fdfde294f