FYI: XCode 7.2 Works with Qt 5.5.1 on OSX El Capitan 10.11 for IOS and OSX targets. Both on simulator and real devices. For IOS, need: QMAKE_IOS_DEPLOYMENT_TARGET=6.0 (or higher) to get past compiler/linker issues. For OSX, need: QMAKE_MAC_SDK = macosx10.11 Cheers all. md