Turn off warnings coming from subprojects

Question

Can someone help me to turn off warnings in Xcode 4 that I\'m getting from subprojects?

I have three subprojects, with a lot of warnings. The subprojects are provide by

Answer 1

A partial solution only:

If your subprojects build libraries or bundles that do not have to recompile at every run, you can activate the "recent filer" (see figure, blue clock). Then, only warnings and errors from the last compiler run are displayed.