Protobuf linking error while building the project as a git submodule

[mrsaibaandreas]

OS: Ubuntu 24.04 Compiler: g++ (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0 CMake: 3.28.3

I'm trying to build the GameNetworkingSockets library and I get this error. No clue what is generating it. I already have protobuf installed, via the BUILDING.md specifications.

CMake Error at GameNetworkingSockets/src/CMakeLists.txt:168 (target_link_libraries):
  Target "GameNetworkingSockets" links to:

    protobuf::libprotobuf

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):
  GameNetworkingSockets/src/CMakeLists.txt:232 (gns_set_target_protobuf_properties)
  GameNetworkingSockets/src/CMakeLists.txt:328 (set_clientlib_target_properties)


CMake Error at GameNetworkingSockets/src/CMakeLists.txt:168 (target_link_libraries):
  Target "GameNetworkingSockets_s" links to:

    protobuf::libprotobuf

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):
  GameNetworkingSockets/src/CMakeLists.txt:232 (gns_set_targ
```et_protobuf_properties)
  GameNetworkingSockets/src/CMakeLists.txt:336 (set_clientlib_target_properties)