An example project using GKlib via the CMake FetchContent module.

.gitignore

# Prerequisites
*.d                                                                             
                                                                                
# Compiled Object files
*.slo
*.lo
*.o
*.obj

# Precompiled Headers
*.gch
*.pch

# Compiled Dynamic libraries
*.so
*.dylib
*.dll

# Fortran module files
*.mod
*.smod

# Compiled Static libraries
*.lai
*.la
*.a
*.lib

# Executables
*.exe
*.out
*.app

# Build files
build

CMakeLists.txt

cmake_minimum_required(VERSION 3.14)
project(GKlib-FetchContent C)

include(FetchContent)

FetchContent_Declare(
  GKlib
  GIT_REPOSITORY https://github.com/jiverson002/GKlib.git
  GIT_TAG        feature/modern-cmake-pr
)

FetchContent_MakeAvailable(GKlib)
# FetchContent_MakeAvailable() was introduced in CMake 3.14, if prior versions
# should be supported, then the following should be used instead:
#
#   FetchContent_GetProperties(GKlib)
#   if(NOT GKlib_POPULATED)
#     FetchContent_Populate(GKlib)
#     add_subdirectory(${GKlib_SOURCE_DIR} ${GKlib_BINARY_DIR})
#   endif()

add_executable(example example.c)
target_link_libraries(example GKlib::GKlib)

example.c

#include "GKlib.h"

int main() { }