I don't want to use the Windows QPA plugin. I want to cross-compile on Windows for a platform that does have a QPA plugin. I've done this on Linux and everything works beautifully. I simply want to do the same on Windows.
IMO, configure.exe should support the exact same options as the configure shell script. Since QPA plugins are loaded at runtime, I will get a runtime error if I attempt to load a non-existent plugin. Even if I wasn't cross-compiling and was targeting Windows, I should still be able to compile in QPA support since something like the minimal QPA plugin would work just fine or I might want to experiment with creating a Windows QPA plugin.