some more cmake tweaking
some more cmake tweaking

cha007/vigra,dstoe/vigra,timoMa/vigra,DaveRichmond-/vigra,DaveRichmond-/vigra,mmuellner/vigra,kod3r/vigra,dstoe/vigra,funkey/vigra,cbecker/vigra,timoMa/vigra,cbecker/vigra,cha007/vigra,xiwei-zhang/vigra,dagophil/vigra,funkey/vigra,dagophil/vigra,mmuellner/vigra,ThomasWalter/vigra,xiwei-zhang/vigra,kod3r/vigra,capturePointer/vigra,ThomasWalter/vigra,kod3r/vigra,mmuellner/vigra,psteinb/vigra,ThomasWalter/vigra,xiwei-zhang/vigra,dagophil/vigra,hmeine/vigra,mmuellner/vigra,funkey/vigra,hmeine/vigra,cha007/vigra,mmuellner/vigra,cha007/vigra,hmeine/vigra,ThomasWalter/vigra,ThomasWalter/vigra,DaveRichmond-/vigra,hmeine/vigra,martinsch/vigra,timoMa/vigra,stuarteberg/vigra,dstoe/vigra,ThomasWalter/vigra,dstoe/vigra,kod3r/vigra,funkey/vigra,psteinb/vigra,DaveRichmond-/vigra,psteinb/vigra,hmeine/vigra,psteinb/vigra,xiwei-zhang/vigra,timoMa/vigra,cha007/vigra,timoMa/vigra,dstoe/vigra,timoMa/vigra,martinsch/vigra,capturePointer/vigra,funkey/vigra,funkey/vigra,dstoe/vigra,martinsch/vigra,psteinb/vigra,stuarteberg/vigra,martinsch/vigra,capturePointer/vigra,DaveRichmond-/vigra,dagophil/vigra,DaveRichmond-/vigra,stuarteberg/vigra,kod3r/vigra,funkey/vigra,xiwei-zhang/vigra,DaveRichmond-/vigra,capturePointer/vigra,mmuellner/vigra,cbecker/vigra,kod3r/vigra,martinsch/vigra,martinsch/vigra,dstoe/vigra,capturePointer/vigra,stuarteberg/vigra,cha007/vigra,cbecker/vigra,stuarteberg/vigra,psteinb/vigra,timoMa/vigra,stuarteberg/vigra,dagophil/vigra,dagophil/vigra,ThomasWalter/vigra,stuarteberg/vigra,xiwei-zhang/vigra,xiwei-zhang/vigra,cbecker/vigra,capturePointer/vigra,hmeine/vigra,kod3r/vigra,psteinb/vigra,mmuellner/vigra,cha007/vigra,capturePointer/vigra,cbecker/vigra,dagophil/vigra,hmeine/vigra