The flags go before the library in the final linker line, as opposed
to the dependencies declared in LIBS.
This allows us to declare the flags for the entrypoint
in the project file of the entrypoint, instead of in
a standalone prf.
Change-Id: I35c054fe9fdaa6add7cd0e8ba3f7304f975ff80f
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>