Currently qmltestrunner is built as a tool, instead of an app. That means that for most cross-compiling platforms (aside from Yocto), the build system will look for a host binary when referring to the qmltestrunner target. We want to look for the target platform binary instead. Switch the code around to prefer looking for the target platform binary via find_program, before falling back to referring to it by target name. In the future when we change qmltestrunner to be an app, and also expose its target platform binary as a target name, this should not be needed anymore, and we could rely solely on the target name. Amends 9edcc4690665496c2b6f15876b3979487dbad22a Task-number: COIN-1211 Task-number: QTBUG-137005 Change-Id: If2eb93d8832a17aae3d0648d1d0f5997805796fa Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>