CMakeLists Configuration for LIBCS50

CMakeLists.txt

cmake_minimum_required(VERSION 4.1)
project(hello_cs50_library C)

set(CMAKE_C_STANDARD 11)
set(MY_PROJECT hello_cs50_library)

# Include the command that downloads libraries
include(FetchContent)

# Grab libcs50 from GitHub
FetchContent_Declare(
        libcs50
        GIT_REPOSITORY https://github.com/cs50/libcs50.git
        GIT_TAG        main
)

# Download + add to build
FetchContent_MakeAvailable(libcs50)

add_executable(MY_PROJECT main.c)

# ---- Link + includes ----
# libcs50's repo doesn't provide a universal CMake "target" in all historical versions,
# so we handle it robustly:
#
# 1) If the repo defines a target named "cs50", use it.
# 2) Otherwise, build cs50 ourselves from the fetched sources.
if(TARGET cs50)
    target_link_libraries(MY_PROJECT PRIVATE cs50)
elseif(TARGET libcs50)
    target_link_libraries(MY_PROJECT PRIVATE libcs50)
else()
    # Fallback: build the library from source in the fetched directory
    FetchContent_GetProperties(libcs50)
    if(NOT libcs50_POPULATED)
        message(FATAL_ERROR "libcs50 was not populated by FetchContent.")
    endif()

    add_library(cs50 STATIC
            ${libcs50_SOURCE_DIR}/src/cs50.c
    )

    target_include_directories(cs50 PUBLIC
            ${libcs50_SOURCE_DIR}/src
    )

    target_link_libraries(MY_PROJECT PRIVATE cs50)
endif()