There is no support for qt3support IUSE for qt-declarative. It's config defaults to +qt3support, hence it fails on a system with -qt3support Reproducible: Always Steps to Reproduce: 1. USE="-qt3support" emerge =x11-libs/qt-declarative-4.7.0 2. 3.
Created attachment 251317 [details, diff] patch for qt-declarative-4.7.0.ebuild It is not a perfect solution, but it works
fixed, thanks :)