Mobility does not provide a way to check versioning on .pro level

I can't see any mobility equivalent of QT_VERSION available as a variable on qmake level. While the mobility version can be checked in ifdefs and even runtime, it would be helpful to be able to use it on the build system level (i.e. linking in libs that are required because the available mobility version has no support for a feature, provide developer friendly build-time information or missed requirements, support parallel mobility installs, etc).