Is there a way to build Qt in \"Release with Debug info\" mode ? My application crashes only in \"release\" mode (works fine in Debug mode) and seems the issue comes from Qt
Building Qt with this mode is not supported, see this bug. You can only do it manually by changing vcproj-files or Makefiles like in the answer of Macke.
May I add that in Qt 4.8, this bug seems to have been fixed. I copied those two lines into my .pro file, and it worked like a charm.