Project compiling with raylib static library - c++

Question

I am trying to create a game with the Raylib library. I just was until now just trying around inside the main.cpp and always compiled my code with this line inside the terminal.
clang -std=c++11 -framework CoreVideo -framework IOKit -framework Cocoa -framework GLUT -framework OpenGL libraylib.a main.cpp -o my_app
Now I want to recreate the Snake game just for fun. I thought I would be wise the spilt the main.cpp into multiple src files but I actually don't know how I should compile all of this. I tried to create a CMakeList.txt like this:
cmake_minimum_required (VERSION 3.0)
set(CMAKE_BUILD_TYPE Debug)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -framework CoreVideo")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -framework IOKit")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -framework Cocoa")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -framework GLUT")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -framework OpenGL")
project(Snake)
add_executable(
Snake
main.cpp
Snake.cpp
)
target_link_libraries(main ${CMAKE_SOURCE_DIR}/librarylib.a)
but this doesn't work. This is the Error message.
CMake Error at CMakeLists.txt:18 (target_link_libraries):
Cannot specify link libraries for target "main" which is not built by this
project.
-- Configuring incomplete, errors occurred!
Are there better ways to compile this project and can anyone explain to me what the -framework flag actually does? I still want to use VSCode because I want to learn how to use the terminal a bit better.
Edit: Information form brew ls --verbose raylib:
/usr/local/Cellar/raylib/2.5.0/LICENSE.md
/usr/local/Cellar/raylib/2.5.0/INSTALL_RECEIPT.json
/usr/local/Cellar/raylib/2.5.0/.brew/raylib.rb
/usr/local/Cellar/raylib/2.5.0/CHANGELOG
/usr/local/Cellar/raylib/2.5.0/include/raylib.h
/usr/local/Cellar/raylib/2.5.0/HISTORY.md
/usr/local/Cellar/raylib/2.5.0/README.md
/usr/local/Cellar/raylib/2.5.0/lib/pkgconfig/raylib.pc
/usr/local/Cellar/raylib/2.5.0/lib/cmake/raylib/raylib-config-version.cmake
/usr/local/Cellar/raylib/2.5.0/lib/cmake/raylib/raylib-config.cmake
/usr/local/Cellar/raylib/2.5.0/lib/libraylib.2.5.0.dylib
/usr/local/Cellar/raylib/2.5.0/lib/libraylib.2.dylib
/usr/local/Cellar/raylib/2.5.0/lib/libraylib.a
/usr/local/Cellar/raylib/2.5.0/lib/libraylib.dylib

Answer 1

Solved it by setting my CMakeLists.txt up like this:
cmake_minimum_required(VERSION 3.0)
project(Snake)
set (CMAKE_CXX_STANDARD 11)
# Executable & linking
add_executable(${PROJECT_NAME} main.cpp snake.cpp)
if (NOT TARGET raylib)
find_package(raylib 2.5.0 REQUIRED)
endif()
target_link_libraries(${PROJECT_NAME} raylib)

Answer 2

You want to link your executable to librarylib.a. The target name of your executable is Snake.
If we look at the error:
Cannot specify link libraries for target "main" which is not built by this project.
Indeed, you never added a library or an executable called main.
This is what should be in your target_link_libraries call should look like:
target_link_libraries(Snake PUBLIC "${CMAKE_SOURCE_DIR}/librarylib.a")