Revision control
++ # Prevent warnings about object files without any symbols. This is a common
++ # thing in Qt as we tend to build files unconditionally, and then use ifdefs
++ # to compile out parts that are not relevant.
++ QMAKE_RANLIB += -no_warning_for_no_symbols
++
++ # We have to tell 'ar' to not run ranlib by itself
++ QMAKE_AR += -S