CMakeLists.txt

cmake_minimum_required(VERSION 3.14 FATAL_ERROR)

enable_language(C)

set(CMAKE_POLICY_DEFAULT_CMP0077 NEW) # don't let OPTION erase non-cache variables
set(CMAKE_CXX_EXTENSIONS OFF CACHE INTERNAL "" FORCE) # disable compiler extensions
set(CMAKE_POSITION_INDEPENDENT_CODE ON) # enable PIC
set(CMAKE_DEBUG_POSTFIX "-d")

if(NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE Debug) # ensure CMAKE_BUILD_TYPE is not empty
endif()

# project parameters
set(project_name dr_libs)
set(project_version "0.13.2")
set(C_STANDARD 11)

project(${project_name} VERSION "${project_version}")

set(is_root_project OFF) # indicate if this is the top-level project

if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
  set(is_root_project ON)
  message(STATUS "${PROJECT_NAME} is top level")
endif()

add_library(${project_name} STATIC)
add_library(${project_name}::${project_name} ALIAS ${project_name})
add_subdirectory(include/dr_libs)
add_subdirectory(src)

target_include_directories(${project_name} PRIVATE
  "include"
)

target_include_directories(${project_name} SYSTEM INTERFACE
  "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>"
  "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
)

option(DR_LIBS_BUILD_TESTS "Build tests" ${is_root_project})

if(${DR_LIBS_BUILD_TESTS})
  add_subdirectory(tests)
endif()