[kde-frameworks/kcrash] Remove unused dependency.

While there is a check for it, it's not used and will be satisfied transitively via qtx11extras.
While not ideal behaviour, it's fairly common eg. in autotools packages.
I will try to address the issue upstream.

Package-Manager: portage-2.2.7
[kde-frameworks/kcompletion] Remove unused dependency.

The check still exists, but it is satisfied transitively for now by kconfig.

Package-Manager: portage-2.2.7
[kde-frameworks/kdoctools] Disable doxygen since there is no useful output.

Package-Manager: portage-2.2.7
[eclass] Export src_prepare. Never build standalone tests, and only build unit tests when required.

This fixes bug #491352.
[dev-libs/libdbusmenu-qt] Add qt4 + qt5 build options

Package-Manager: portage-2.2.7