In gRPC and protobuf modules how to specify the installation path

JohnGa

Hello,
I am trying to use the new gRPC framework in Qt. The documentation is found here:
https://doc.qt.io/qt-6/qtgrpc-index.html

In the module pre-requisites, it looks like gRPC and protobuf need to be installed. How do I tell cmake where to find the gRPC and protobuf installation?

When I try to import the included gRPC examples that came with 6.5.0, QtCreator throws this error and does NOT import the project:

CMake Warning at /Applications/Qt/6.5.0/macos/lib/cmake/Qt6/Qt6Config.cmake:157 (find_package):
  Found package configuration file:

    /Applications/Qt/6.5.0/macos/lib/cmake/Qt6Grpc/Qt6GrpcConfig.cmake

  but it set Qt6Grpc_FOUND to FALSE so package "Qt6Grpc" is considered to be
  NOT FOUND.  Reason given by package:

  Qt6Grpc could not be found because dependency WrapgRPC could not be found.

I can't seem to find any notes on WrapgRPC anywhere. Enabling find package debugging also does not give any useful pointers.

Thanks.

semlanik

@JohnGa sorry for this delayed response, you can either add:

-DProtobuf_ROOT=/path/to/protobuf/install/prefix -DgRPC_ROOT=/path/to/grpc/install/prefix

or

"-DCMAKE_PREFIX_PATH=/path/to/protobuf/install/prefix;/path/to/grpc/install/prefix"

Hope this helps.