I had a linker error today and this is how I fixed it.

Working-with-CMake.md

@@ -24,6 +24,12 @@ To generate build files in separate directory and build the project, use these c
 cmake -B build && cmake --build build
 ```
 
+If you encounter a linker error with undefined symbols to glfw functions, it may be necessary to add `glfw` to the linking:
+```cmake
+target_link_libraries(${PROJECT_NAME} glfw raylib)
+```
+Note that this required an installation of `glfw` in the environment (e.g. through a package manager or CMake).
+
 ## Loading raylib inside cmake
 If you want someone who builds your project to be able to download and build raylib with it, the [CMakeLists.txt at projects/CMake](https://github.com/raysan5/raylib/blob/master/projects/CMake/CMakeLists.txt)
  will help you.