[easyloggingpp] how to use it? (missing usage)

[paulbuechner]

Is your feature request related to a problem? Please describe.

When installing easyloggingpp via manifest mode:

{
    "name": "easyloggingpp",
    "version>=": "9.97.1",
    "features": [
      "no-defaultfile",
      "std-locking",
      "thread-safe"
    ]
},

...it states:

easyloggingpp provides pkg-config modules:

    # Feature-rich single header C++ logging library
    easyloggingpp

I'm missing instructions on how to "find" the library in CMake and how to link it.

Proposed solution

Add usage to port.

[Osyotr]

https://cmake.org/cmake/help/latest/module/FindPkgConfig.html

find_package(PkgConfig REQUIRED) 
pkg_check_modules(easyloggingpp REQUIRED IMPORTED_TARGET easyloggingpp)
target_link_libraries(MyTarget PRIVATE PkgConfig::easyloggingpp)

[paulbuechner]

Actually i was missing the #include <easylogging++.cc> include to successfully compile, which is described here. Maybe we can state this in the usage file then.

Additionally checking if easyloggingpp is present with pkg_check_modules is a good way to prevent issues.