gRPC doesn't provide the smart tool lookup when crosscompiling.
So gRPC lookup is unable to find the grpc_cpp_plugin plugin when
crosscompiling examples. Use find_program to find the plugin in
host paths.
Pick-to: 6.8 6.9
Fixes: QTBUG-134647
Change-Id: I961b180b348dee4f1b2f2523be225d3003847e4c
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Dennis Oberst <dennis.oberst@qt.io>
This will work around the issue in debian-like platforms, where
relatively new protobuf doesn't deliver the proper config files.
The lookup still prefers looking for the config files, but not
the deprecated CMake module.
Change-Id: Ie1d5217e9023022976dd058be9dd7fd1ce37e39f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Alexey Edelev
Jaime Resano