cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
project(configor LANGUAGES CXX)

# Use C++11
set(CMAKE_CXX_STANDARD 11)
# Require (at least) it
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# Don't use e.g. GNU extension (like -std=gnu++11) for portability
set(CMAKE_CXX_EXTENSIONS OFF)
# Compiler args
if (${CMAKE_CXX_COMPILER_ID} STREQUAL MSVC)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8 /W3 /WX")
elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL Clang)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror")
elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror")
endif()
# Root path
set(PROJECT_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR})

include_directories(${CMAKE_CURRENT_LIST_DIR}/include)

add_subdirectory(examples examples)

option (BUILD_TESTING "Build the testing tree." ON)
# Only build tests if we are the top-level project
# Allows this to be used by super projects with `add_subdirectory`
if (BUILD_TESTING AND (PROJECT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR))
  include(CTest)
  enable_testing()
  add_subdirectory(tests tests)
endif()