diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2a02376..668d19c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,85 +1,85 @@
-PROJECT(libSDL2pp)
+cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
 
 # meta
-CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
+project(libSDL2pp)
 
-SET(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
+set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
 
-SET(SDL2PP_MAJOR_VERSION 0)
-SET(SDL2PP_MINOR_VERSION 16)
-SET(SDL2PP_PATCH_VERSION 0)
+set(SDL2PP_MAJOR_VERSION 0)
+set(SDL2PP_MINOR_VERSION 16)
+set(SDL2PP_PATCH_VERSION 0)
 
-SET(SDL2PP_VERSION "${SDL2PP_MAJOR_VERSION}.${SDL2PP_MINOR_VERSION}.${SDL2PP_PATCH_VERSION}")
+set(SDL2PP_VERSION "${SDL2PP_MAJOR_VERSION}.${SDL2PP_MINOR_VERSION}.${SDL2PP_PATCH_VERSION}")
 
 # there are functions present on wiki, but not yet in stable SDL2 releases;
 # we hide these under following options
-OPTION(SDL2PP_WITH_WERROR "Make warnings fatal" OFF)
+option(SDL2PP_WITH_WERROR "Make warnings fatal" OFF)
 
-SET(SDL2PP_CXXSTD "c++11" CACHE STRING "Used c++ standard")
+set(SDL2PP_CXXSTD "c++11" CACHE STRING "Used c++ standard")
 
-IF(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
 	OPTION(SDL2PP_WITH_IMAGE "Enable SDL2_image support" ON)
 	OPTION(SDL2PP_WITH_TTF "Enable SDL2_ttf support" ON)
 	OPTION(SDL2PP_WITH_MIXER "Enable SDL2_mixer support" ON)
-ELSE(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+else()
 	# please set SDL2PP_WITH_IMAGE, SDL2PP_WITH_TTF, SDL2PP_WITH_MIXER in parent project as needed
-ENDIF(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+endif()
 
 # depends
-FIND_PACKAGE(SDL2 REQUIRED)
-SET(SDL2_ALL_INCLUDE_DIRS ${SDL2_INCLUDE_DIR})
-SET(SDL2_ALL_LIBRARIES ${SDL2_LIBRARY})
-SET(SDL2_ALL_PKGCONFIG_MODULES sdl2)
-SET(SDL2PP_EXTRA_LIBRARIES ${SDL2MAIN_LIBRARY})
-SET(SDL2PP_EXTRA_PKGCONFIG_LIBRARIES ${SDL2MAIN_LIBRARY})
+find_package(SDL2 REQUIRED)
+set(SDL2_ALL_INCLUDE_DIRS ${SDL2_INCLUDE_DIR})
+set(SDL2_ALL_LIBRARIES ${SDL2_LIBRARY})
+set(SDL2_ALL_PKGCONFIG_MODULES sdl2)
+set(SDL2PP_EXTRA_LIBRARIES ${SDL2MAIN_LIBRARY})
+set(SDL2PP_EXTRA_PKGCONFIG_LIBRARIES ${SDL2MAIN_LIBRARY})
 
-IF(MINGW)
-	SET(MINGW32_LIBRARY "mingw32" CACHE STRING "mingw32 library")
-	SET(SDL2PP_EXTRA_LIBRARIES ${MINGW32_LIBRARY} ${SDL2PP_EXTRA_LIBRARIES})
-	SET(SDL2PP_EXTRA_PKGCONFIG_LIBRARIES "-l${MINGW32_LIBRARY} ${SDL2PP_EXTRA_PKGCONFIG_LIBRARIES}")
-ENDIF(MINGW)
+if(MINGW)
+	set(MINGW32_LIBRARY "mingw32" CACHE STRING "mingw32 library")
+	set(SDL2PP_EXTRA_LIBRARIES ${MINGW32_LIBRARY} ${SDL2PP_EXTRA_LIBRARIES})
+	set(SDL2PP_EXTRA_PKGCONFIG_LIBRARIES "-l${MINGW32_LIBRARY} ${SDL2PP_EXTRA_PKGCONFIG_LIBRARIES}")
+endif()
 
-IF(SDL2PP_WITH_IMAGE)
-	FIND_PACKAGE(SDL2_image REQUIRED)
-	SET(SDL2_ALL_INCLUDE_DIRS ${SDL2_ALL_INCLUDE_DIRS} ${SDL2_IMAGE_INCLUDE_DIR})
-	SET(SDL2_ALL_LIBRARIES ${SDL2_ALL_LIBRARIES} ${SDL2_IMAGE_LIBRARY})
-	SET(SDL2_ALL_PKGCONFIG_MODULES "${SDL2_ALL_PKGCONFIG_MODULES} SDL2_image")
-ELSE(SDL2PP_WITH_IMAGE)
-	MESSAGE(STATUS "SDL2_image support disabled")
-ENDIF(SDL2PP_WITH_IMAGE)
+if(SDL2PP_WITH_IMAGE)
+	find_package(SDL2_image REQUIRED)
+	set(SDL2_ALL_INCLUDE_DIRS ${SDL2_ALL_INCLUDE_DIRS} ${SDL2_IMAGE_INCLUDE_DIR})
+	set(SDL2_ALL_LIBRARIES ${SDL2_ALL_LIBRARIES} ${SDL2_IMAGE_LIBRARY})
+	set(SDL2_ALL_PKGCONFIG_MODULES "${SDL2_ALL_PKGCONFIG_MODULES} SDL2_image")
+else()
+	message(STATUS "SDL2_image support disabled")
+endif()
 
-IF(SDL2PP_WITH_TTF)
-	FIND_PACKAGE(SDL2_ttf REQUIRED)
-	SET(SDL2_ALL_INCLUDE_DIRS ${SDL2_ALL_INCLUDE_DIRS} ${SDL2_TTF_INCLUDE_DIR})
-	SET(SDL2_ALL_LIBRARIES ${SDL2_ALL_LIBRARIES} ${SDL2_TTF_LIBRARY})
-	SET(SDL2_ALL_PKGCONFIG_MODULES "${SDL2_ALL_PKGCONFIG_MODULES} SDL2_ttf")
-ELSE(SDL2PP_WITH_TTF)
-	MESSAGE(STATUS "SDL2_ttf support disabled")
-ENDIF(SDL2PP_WITH_TTF)
+if(SDL2PP_WITH_TTF)
+	find_package(SDL2_ttf REQUIRED)
+	set(SDL2_ALL_INCLUDE_DIRS ${SDL2_ALL_INCLUDE_DIRS} ${SDL2_TTF_INCLUDE_DIR})
+	set(SDL2_ALL_LIBRARIES ${SDL2_ALL_LIBRARIES} ${SDL2_TTF_LIBRARY})
+	set(SDL2_ALL_PKGCONFIG_MODULES "${SDL2_ALL_PKGCONFIG_MODULES} SDL2_ttf")
+else()
+	message(STATUS "SDL2_ttf support disabled")
+endif()
 
-IF(SDL2PP_WITH_MIXER)
-	FIND_PACKAGE(SDL2_mixer REQUIRED)
-	SET(SDL2_ALL_INCLUDE_DIRS ${SDL2_ALL_INCLUDE_DIRS} ${SDL2_MIXER_INCLUDE_DIR})
-	SET(SDL2_ALL_LIBRARIES ${SDL2_ALL_LIBRARIES} ${SDL2_MIXER_LIBRARY})
-	SET(SDL2_ALL_PKGCONFIG_MODULES "${SDL2_ALL_PKGCONFIG_MODULES} SDL2_mixer")
-ELSE(SDL2PP_WITH_MIXER)
-	MESSAGE(STATUS "SDL2_mixer support disabled")
-ENDIF(SDL2PP_WITH_MIXER)
+if(SDL2PP_WITH_MIXER)
+	find_package(SDL2_mixer REQUIRED)
+	set(SDL2_ALL_INCLUDE_DIRS ${SDL2_ALL_INCLUDE_DIRS} ${SDL2_MIXER_INCLUDE_DIR})
+	set(SDL2_ALL_LIBRARIES ${SDL2_ALL_LIBRARIES} ${SDL2_MIXER_LIBRARY})
+	set(SDL2_ALL_PKGCONFIG_MODULES "${SDL2_ALL_PKGCONFIG_MODULES} SDL2_mixer")
+else()
+	message(STATUS "SDL2_mixer support disabled")
+endif()
 
 # compiler flags & definitions
-IF(MSVC)
-	SET(SDL2PP_WARNINGS "${SDL2PP_WARNINGS} /W3")
-	SET(SDL2PP_WERROR_FLAG "/WX")
-ELSE(MSVC)
-	SET(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_DEBUG} --coverage")
-	SET(CMAKE_EXE_LINKER_FLAGS_COVERAGE "${CMAKE_EXE_LINKER_FLAGS_DEBUG} --coverage")
-	SET(CMAKE_SHARED_LINKER_FLAGS_COVERAGE "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} --coverage")
+if(MSVC)
+	set(SDL2PP_WARNINGS "${SDL2PP_WARNINGS} /W3")
+	set(SDL2PP_WERROR_FLAG "/WX")
+else()
+	set(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_DEBUG} --coverage")
+	set(CMAKE_EXE_LINKER_FLAGS_COVERAGE "${CMAKE_EXE_LINKER_FLAGS_DEBUG} --coverage")
+	set(CMAKE_SHARED_LINKER_FLAGS_COVERAGE "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} --coverage")
 
-	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=${SDL2PP_CXXSTD}")
-	SET(SDL2PP_WARNINGS "${SDL2PP_WARNINGS} -Wall -Wextra -pedantic")
-	SET(SDL2PP_WERROR_FLAG "-Werror")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=${SDL2PP_CXXSTD}")
+	set(SDL2PP_WARNINGS "${SDL2PP_WARNINGS} -Wall -Wextra -pedantic")
+	set(SDL2PP_WERROR_FLAG "-Werror")
 
-	INCLUDE(AppendCXXFlagIfSupported)
+	include(AppendCXXFlagIfSupported)
 
 	# enable for more cleanups
 	#APPEND_CXX_FLAG_IF_SUPPORTED(-Weverything SDL2PP_WARNINGS)
@@ -92,36 +92,36 @@ ELSE(MSVC)
 	# disable some -Weverything warnings
 	#APPEND_CXX_FLAG_IF_SUPPORTED(-Wno-c++98-compat SDL2PP_WARNINGS)
 	#APPEND_CXX_FLAG_IF_SUPPORTED(-Wno-padded SDL2PP_WARNINGS)
-ENDIF(MSVC)
+endif()
 
-LIST(REMOVE_DUPLICATES SDL2_ALL_INCLUDE_DIRS)
+list(REMOVE_DUPLICATES SDL2_ALL_INCLUDE_DIRS)
 
-INCLUDE_DIRECTORIES(BEFORE ${PROJECT_SOURCE_DIR})
-INCLUDE_DIRECTORIES(SYSTEM ${SDL2_ALL_INCLUDE_DIRS})
+include_directories(BEFORE ${PROJECT_SOURCE_DIR})
+include_directories(SYSTEM ${SDL2_ALL_INCLUDE_DIRS})
 
-INCLUDE(CheckCompile)
-CHECK_COMPILE(
+include(CheckCompile)
+check_compile(
 	SDL2PP_WITH_EXPERIMENTAL_OPTIONAL
 	"#include <experimental/optional>\nint main() { std::experimental::optional<int> o; return !o; }"
 	"experimental/optional header"
 )
 
-SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SDL2PP_WARNINGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SDL2PP_WARNINGS}")
 
-IF(SDL2PP_WITH_WERROR)
-	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SDL2PP_WERROR_FLAG}")
-ENDIF(SDL2PP_WITH_WERROR)
+if(SDL2PP_WITH_WERROR)
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SDL2PP_WERROR_FLAG}")
+endif()
 
 # config.h
-CONFIGURE_FILE(
+configure_file(
 	SDL2pp/Config.hh.in
 	SDL2pp/Config.hh
 )
 
-INCLUDE_DIRECTORIES(BEFORE ${PROJECT_BINARY_DIR})
+include_directories(BEFORE ${PROJECT_BINARY_DIR})
 
 # sources
-SET(LIBRARY_SOURCES
+set(LIBRARY_SOURCES
 	SDL2pp/AudioDevice.cc
 	SDL2pp/AudioLock.cc
 	SDL2pp/AudioSpec.cc
@@ -140,7 +140,7 @@ SET(LIBRARY_SOURCES
 	SDL2pp/Window.cc
 )
 
-SET(LIBRARY_HEADERS
+set(LIBRARY_HEADERS
 	SDL2pp/AudioDevice.hh
 	SDL2pp/AudioSpec.hh
 	SDL2pp/Color.hh
@@ -160,146 +160,146 @@ SET(LIBRARY_HEADERS
 	SDL2pp/Window.hh
 )
 
-SET(LIBRARY_EXTERNAL_HEADERS
+set(LIBRARY_EXTERNAL_HEADERS
 	SDL2pp/external/libcpp_optional.hh
 )
 
 # optional sources
-IF(SDL2PP_WITH_TTF)
-	SET(LIBRARY_SOURCES
+if(SDL2PP_WITH_TTF)
+	set(LIBRARY_SOURCES
 		${LIBRARY_SOURCES}
 		SDL2pp/SDLTTF.cc
 		SDL2pp/Font.cc
 	)
-	SET(LIBRARY_HEADERS
+	set(LIBRARY_HEADERS
 		${LIBRARY_HEADERS}
 		SDL2pp/SDLTTF.hh
 		SDL2pp/Font.hh
 	)
-ENDIF(SDL2PP_WITH_TTF)
+endif()
 
-IF(SDL2PP_WITH_IMAGE)
-	SET(LIBRARY_SOURCES
+if(SDL2PP_WITH_IMAGE)
+	set(LIBRARY_SOURCES
 		${LIBRARY_SOURCES}
 		SDL2pp/SDLImage.cc
 	)
-	SET(LIBRARY_HEADERS
+	set(LIBRARY_HEADERS
 		${LIBRARY_HEADERS}
 		SDL2pp/SDLImage.hh
 	)
-ENDIF(SDL2PP_WITH_IMAGE)
+endif()
 
-IF(SDL2PP_WITH_MIXER)
-	SET(LIBRARY_SOURCES
+if(SDL2PP_WITH_MIXER)
+	set(LIBRARY_SOURCES
 		${LIBRARY_SOURCES}
 		SDL2pp/Chunk.cc
 		SDL2pp/Mixer.cc
 		SDL2pp/Music.cc
 		SDL2pp/SDLMixer.cc
 	)
-	SET(LIBRARY_HEADERS
+	set(LIBRARY_HEADERS
 		${LIBRARY_HEADERS}
 		SDL2pp/Chunk.hh
 		SDL2pp/Mixer.hh
 		SDL2pp/Music.hh
 		SDL2pp/SDLMixer.hh
 	)
-ENDIF(SDL2PP_WITH_MIXER)
+endif()
 
 # targets
-INCLUDE(GenerateExportHeader)
+include(GenerateExportHeader)
 
-IF(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
 	# options
-	OPTION(SDL2PP_WITH_EXAMPLES "Build examples" ON)
-	OPTION(SDL2PP_WITH_TESTS "Build tests" ON)
-	OPTION(SDL2PP_ENABLE_LIVE_TESTS "Enable live tests (require X11 display and audio device)" ON)
-	OPTION(SDL2PP_STATIC "Build static library instead of shared one" OFF)
+	option(SDL2PP_WITH_EXAMPLES "Build examples" ON)
+	option(SDL2PP_WITH_TESTS "Build tests" ON)
+	option(SDL2PP_ENABLE_LIVE_TESTS "Enable live tests (require X11 display and audio device)" ON)
+	option(SDL2PP_STATIC "Build static library instead of shared one" OFF)
 
 	# library
-	IF(SDL2PP_STATIC)
+	if(SDL2PP_STATIC)
 		ADD_LIBRARY(SDL2pp STATIC ${LIBRARY_SOURCES} ${LIBRARY_HEADERS})
-	ELSE(SDL2PP_STATIC)
+	else()
 		ADD_LIBRARY(SDL2pp SHARED ${LIBRARY_SOURCES} ${LIBRARY_HEADERS})
 		TARGET_LINK_LIBRARIES(SDL2pp ${SDL2_ALL_LIBRARIES})
 		SET_TARGET_PROPERTIES(SDL2pp PROPERTIES VERSION 8.3.0 SOVERSION 8)
-	ENDIF(SDL2PP_STATIC)
+	endif()
 
-	GENERATE_EXPORT_HEADER(SDL2pp EXPORT_FILE_NAME SDL2pp/Export.hh)
+	generate_export_header(SDL2pp EXPORT_FILE_NAME SDL2pp/Export.hh)
 
-	SET(SDL2PP_LIBRARIES ${SDL2PP_EXTRA_LIBRARIES} SDL2pp ${SDL2_ALL_LIBRARIES})
+	set(SDL2PP_LIBRARIES ${SDL2PP_EXTRA_LIBRARIES} SDL2pp ${SDL2_ALL_LIBRARIES})
 
 	# examples and tests
-	IF(SDL2PP_WITH_EXAMPLES)
-		ADD_SUBDIRECTORY(examples)
-	ENDIF(SDL2PP_WITH_EXAMPLES)
+	if(SDL2PP_WITH_EXAMPLES)
+		add_subdirectory(examples)
+	endif()
 
-	IF(SDL2PP_WITH_TESTS)
-		ENABLE_TESTING()
-		ADD_SUBDIRECTORY(tests)
-	ENDIF(SDL2PP_WITH_TESTS)
+	if(SDL2PP_WITH_TESTS)
+		enable_testing()
+		add_subdirectory(tests)
+	endif()
 
 	# doxygen
-	FIND_PACKAGE(Doxygen)
-	IF(DOXYGEN_FOUND)
-		CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
-		ADD_CUSTOM_TARGET(doxygen
+	find_package(Doxygen)
+	if(DOXYGEN_FOUND)
+		configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
+		add_custom_target(doxygen
 			${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
 			WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
 			COMMENT "Generating API documentation with Doxygen" VERBATIM
 		)
-	ENDIF(DOXYGEN_FOUND)
+	endif()
 
 	# pkgconfig and cmake modules
-	SET(CMAKEMODDIR share/cmake/Modules CACHE STRING "directory where to install cmake module")
-	SET(PKGCONFIGDIR lib/pkgconfig CACHE STRING "directory where to install pkg-config files")
-	IF(CMAKE_SYSTEM_NAME MATCHES "FreeBSD" OR CMAKE_SYSTEM_NAME MATCHES "DragonFly")
+	set(CMAKEMODDIR share/cmake/Modules CACHE STRING "directory where to install cmake module")
+	set(PKGCONFIGDIR lib/pkgconfig CACHE STRING "directory where to install pkg-config files")
+	if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD" OR CMAKE_SYSTEM_NAME MATCHES "DragonFly")
 		SET(PKGCONFIGDIR libdata/pkgconfig)
-	ENDIF(CMAKE_SYSTEM_NAME MATCHES "FreeBSD" OR CMAKE_SYSTEM_NAME MATCHES "DragonFly")
+	endif()
 
-	INCLUDE(Join)
+	include(Join)
 
 	JOIN_QUOTED("${SDL2PP_EXTRA_LIBRARIES}" SDL2PP_EXTRA_LIBRARIES_STR)
 	JOIN_QUOTED("${SDL2_ALL_LIBRARIES}" SDL2_ALL_LIBRARIES_STR)
 	JOIN_QUOTED("${SDL2_ALL_INCLUDE_DIRS}" SDL2_ALL_INCLUDE_DIRS_STR)
 
-	CONFIGURE_FILE(
+	configure_file(
 		sdl2pp.pc.in
 		sdl2pp.pc
 		@ONLY
 	)
 
-	CONFIGURE_FILE(
+	configure_file(
 		FindSDL2PP.cmake.in
 		FindSDL2PP.cmake
 		@ONLY
 	)
 
 	# install
-	INSTALL(FILES
+	install(FILES
 		${LIBRARY_HEADERS}
 		${PROJECT_BINARY_DIR}/SDL2pp/Config.hh
 		${PROJECT_BINARY_DIR}/SDL2pp/Export.hh
 		DESTINATION include/SDL2pp
 	)
-	INSTALL(FILES ${LIBRARY_EXTERNAL_HEADERS} DESTINATION include/SDL2pp/external)
-	INSTALL(TARGETS SDL2pp
+	install(FILES ${LIBRARY_EXTERNAL_HEADERS} DESTINATION include/SDL2pp/external)
+	install(TARGETS SDL2pp
 		RUNTIME DESTINATION bin
 		LIBRARY DESTINATION lib
 		ARCHIVE DESTINATION lib
 	)
-	INSTALL(FILES ${PROJECT_BINARY_DIR}/sdl2pp.pc DESTINATION ${PKGCONFIGDIR})
-	INSTALL(FILES ${PROJECT_BINARY_DIR}/FindSDL2PP.cmake DESTINATION ${CMAKEMODDIR})
+	install(FILES ${PROJECT_BINARY_DIR}/sdl2pp.pc DESTINATION ${PKGCONFIGDIR})
+	install(FILES ${PROJECT_BINARY_DIR}/FindSDL2PP.cmake DESTINATION ${CMAKEMODDIR})
 
-	MESSAGE(STATUS "libSDL2pp ${SDL2PP_VERSION} standalone build")
-ELSE(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+	message(STATUS "libSDL2pp ${SDL2PP_VERSION} standalone build")
+else()
 	# library
-	ADD_LIBRARY(SDL2pp STATIC ${LIBRARY_SOURCES} ${LIBRARY_HEADERS})
-	GENERATE_EXPORT_HEADER(SDL2pp EXPORT_FILE_NAME SDL2pp/Export.hh)
+	add_library(SDL2pp STATIC ${LIBRARY_SOURCES} ${LIBRARY_HEADERS})
+	generate_export_header(SDL2pp EXPORT_FILE_NAME SDL2pp/Export.hh)
 
 	# provide variables to parent
-	SET(SDL2PP_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} ${SDL2_ALL_INCLUDE_DIRS} PARENT_SCOPE)
-	SET(SDL2PP_LIBRARIES ${SDL2PP_EXTRA_LIBRARIES} SDL2pp ${SDL2_ALL_LIBRARIES} PARENT_SCOPE)
+	set(SDL2PP_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} ${SDL2_ALL_INCLUDE_DIRS} PARENT_SCOPE)
+	set(SDL2PP_LIBRARIES ${SDL2PP_EXTRA_LIBRARIES} SDL2pp ${SDL2_ALL_LIBRARIES} PARENT_SCOPE)
 
-	MESSAGE(STATUS "libSDL2pp ${SDL2PP_VERSION} bundled build")
-ENDIF(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+	message(STATUS "libSDL2pp ${SDL2PP_VERSION} bundled build")
+endif()