cmake_minimum_required(VERSION 3.8)

find_package(Doxygen)

if(NOT Doxygen_FOUND)
  message(
    WARNING
      "Doxygen not found. Targets for building documentation are not available")
  return()
endif()

set(DOXYGEN_EXTRACT_ALL YES)
set(DOXYGEN_BUILTIN_STL_SUPPORT YES)
set(DOXYGEN_USE_MDFILE_AS_MAINPAGE "${PROJECT_SOURCE_DIR}/README.md")
set(DOXYGEN_PROJECT_LOGO "${PROJECT_SOURCE_DIR}/docs/UTF8.png")

doxygen_add_docs(
  api_doc "${PROJECT_SOURCE_DIR}/README.md" "${PROJECT_SOURCE_DIR}/include"
  WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}/include")