Data deployment for Symbian: Added files only deployed after qmake is run

If I add a file to my deployment directory (in one of the mobile projects that Creator generates, nowadays), the file gets only deployed if I manually run qmake.
Reason: Files which are supposed to go into a .sis package are listed in th .pkg file. The .pkg file is only updated in the qmake step.

Would be great if Creator somehow ran qmake automatically when a file is added to those deployment directories. Since creator watches these directories anyways, it should be possible.