IF(NOT DEFINED SOURCE_DIR)
	MESSAGE(ERROR ": Please first include macro's")
ENDIF(NOT DEFINED SOURCE_DIR)

INCLUDE(CheckIncludeFiles)
INCLUDE(CheckFunctionExists)
INCLUDE(CheckLibraryExists)

MACRO(CHECK_HEADERS_H)

	CHECK_INCLUDE_FILES(inttypes.h HAVE_INTTYPES_H)
	CHECK_INCLUDE_FILES(memory.h HAVE_MEMORY_H)
	CHECK_INCLUDE_FILES(stdint.h HAVE_STDINT_H)
	CHECK_INCLUDE_FILES(stdlib.h HAVE_STDLIB_H)
	CHECK_INCLUDE_FILES(strings.h HAVE_STRINGS_H)
	CHECK_INCLUDE_FILES(string.h HAVE_STRING_H)
	CHECK_INCLUDE_FILES(sys/stat.h HAVE_SYS_STAT_H)
	CHECK_INCLUDE_FILES(sys/types.h HAVE_SYS_TYPES_H)
	CHECK_INCLUDE_FILES(unistd.h HAVE_UNISTD_H)

ENDMACRO(CHECK_HEADERS_H)

MACRO(CHECK_FUNCTIONS)

	CHECK_FUNCTION_EXISTS(strndup HAVE_STRNDUP)

ENDMACRO(CHECK_FUNCTIONS)

MACRO(CHECK_LIBRARIES)

IF (UNIX)
	FIND_PACKAGE(X11)

	CHECK_LIBRARY_EXISTS(m sin "" HAVE_LIBM)
	CHECK_LIBRARY_EXISTS(Xext XShmCreateImage "${X11_LIBRARY_DIR}" HAVE_LIBXEXT)
	CHECK_LIBRARY_EXISTS(ICE IceSetIOErrorHandler "${X11_LIBRARY_DIR}" HAVE_LIBICE)
	CHECK_LIBRARY_EXISTS(SM SmsSetErrorHandler "${X11_LIBRARY_DIR}" HAVE_LIBSM)
	CHECK_LIBRARY_EXISTS(Xt XtDisplay "${X11_LIBRARY_DIR}" HAVE_LIBXT)
	CHECK_LIBRARY_EXISTS(Xi XOpenDevice "${X11_LIBRARY_DIR}" HAVE_LIBXI)
	CHECK_LIBRARY_EXISTS(Xmu XmuSimpleErrorHandler "${X11_LIBRARY_DIR}" HAVE_LIBXMU)
	CHECK_LIBRARY_EXISTS(Xxf86vm XF86VidModeSetViewPort "${X11_LIBRARY_DIR}" HAVE_LIBXXF86VM)
	CHECK_LIBRARY_EXISTS(Xrender XRenderSetSubpixelOrder "${X11_LIBRARY_DIR}" HAVE_LIBXRENDER)
	CHECK_LIBRARY_EXISTS(Xrandr XRRQueryVersion "${X11_LIBRARY_DIR}" HAVE_LIBXRANDR)
	
ENDIF(UNIX)
	CHECK_LIBRARY_EXISTS(dl dlopen "" HAVE_LIBDL)

ENDMACRO(CHECK_LIBRARIES)

MACRO(CHECK_PLIB_LIBRARIES)

	FIND_PACKAGE(PLIB)

	IF(PLIB_FOUND)
		IF(PLIB_UL_LIBRARY)
			SET(HAVE_LIBPLIBUL TRUE)
			MESSAGE(STATUS "Looking for library plib/ul - found")
		ELSE(PLIB_UL_LIBRARY)
			MESSAGE(STATUS "Looking for library plib/ul - NOT found")
		ENDIF(PLIB_UL_LIBRARY)

		IF(PLIB_JS_LIBRARY)
			SET(HAVE_LIBPLIBJS TRUE)
			MESSAGE(STATUS "Looking for library plib/js - found")
		ELSE(PLIB_JS_LIBRARY)
			MESSAGE(STATUS "Looking for library plib/js - NOT found")
		ENDIF(PLIB_JS_LIBRARY)

		IF(PLIB_SG_LIBRARY)
			SET(HAVE_LIBPLIBSG TRUE)
			MESSAGE(STATUS "Looking for library plib/sg - found")
		ELSE(PLIB_SG_LIBRARY)
			MESSAGE(STATUS "Looking for library plib/sg - NOT found")
		ENDIF(PLIB_SG_LIBRARY)

		IF(PLIB_SL_LIBRARY)
			SET(HAVE_LIBPLIBSL TRUE)
			MESSAGE(STATUS "Looking for library plib/sl - found")
		ELSE(PLIB_SL_LIBRARY)
			MESSAGE(STATUS "Looking for library plib/sl - NOT found")
		ENDIF(PLIB_SL_LIBRARY)

		#IF(PLIB_SM_LIBRARY)
		#	SET(HAVE_LIBPLIBSM TRUE)
		#	MESSAGE(STATUS "Looking for library plib/sm - found")
		#ELSE(PLIB_SM_LIBRARY)
		#	MESSAGE(STATUS "Looking for library plib/sm - NOT found")
		#ENDIF(PLIB_SM_LIBRARY)

		IF(PLIB_SSG_LIBRARY)
			SET(HAVE_LIBPLIBSSG TRUE)
			MESSAGE(STATUS "Looking for library plib/ssg - found")
		ELSE(PLIB_SSG_LIBRARY)
			MESSAGE(STATUS "Looking for library plib/ssg - NOT found")
		ENDIF(PLIB_SSG_LIBRARY)

		IF(PLIB_SSGAUX_LIBRARY)
			SET(HAVE_LIBPLIBSSGAUX TRUE)
			MESSAGE(STATUS "Looking for library plib/ssgaux - found")
		ELSE(PLIB_SSGAUX_LIBRARY)
			MESSAGE(STATUS "Looking for library plib/ssgaux - NOT found")
		ENDIF(PLIB_SSGAUX_LIBRARY)

	ENDIF(PLIB_FOUND)

ENDMACRO(CHECK_PLIB_LIBRARIES)

MACRO(CHECK_PACKAGES)

	Find_Package(OpenAL)

	IF(OPENAL_FOUND)
		SET(HAVE_LIBOPENAL 1)
		MESSAGE(STATUS "Looking for library OpenAL - found")
	ELSE(OPENAL_FOUND)
		MESSAGE(STATUS "Looking for library OpenAL - NOT found")
	ENDIF(OPENAL_FOUND)

	Find_Package(ENET)

	IF(ENET_FOUND)
		SET(HAVE_LIBENET 1)
		MESSAGE(STATUS "Looking for library ENET - found")
	ELSE(ENET_FOUND)
		MESSAGE(STATUS "Looking for library ENET - NOT found")
	ENDIF(ENET_FOUND)

	Find_Package(OpenGL)

	IF(OPENGL_FOUND)
		SET(HAVE_LIBGL 1)
		MESSAGE(STATUS "Looking for library OpenGL - found")
	ELSE(OPENGL_FOUND)
		MESSAGE(STATUS "Looking for library OpenGL - NOT found")
	ENDIF(OPENGL_FOUND)

	IF(OPENGL_GLU_FOUND)
		SET(HAVE_LIBGLU 1)
		MESSAGE(STATUS "Looking for library OpenGL/GLU - found")
	ELSE(OPENGL_GLU_FOUND)
		MESSAGE(STATUS "Looking for library OpenGL/GLU - NOT found")
	ENDIF(OPENGL_GLU_FOUND)

	Find_Package(X11)

	IF(X11_FOUND)
		SET(HAVE_LIBX11 1)
		MESSAGE(STATUS "Looking for libraries X11 - found")
	ELSE(X11_FOUND)
		MESSAGE(STATUS "Looking for libraries X11 - NOT found")
	ENDIF(X11_FOUND)

	FIND_Package(ZLIB)

	IF(ZLIB_FOUND)
		SET(HAVE_LIBZ 1)
		MESSAGE(STATUS "Looking for library Zlib - found")
	ELSE(ZLIB_FOUND)
		MESSAGE(STATUS "Looking for library Zlib - NOT found")
	ENDIF(ZLIB_FOUND)

	Find_Package(PNG)

	IF(PNG_FOUND)
		SET(HAVE_LIBPNG 1)
		MESSAGE(STATUS "Looking for library PNG - found")
	ELSE(PNG_FOUND)
		MESSAGE(STATUS "Looking for library PNG - NOT found")
	ENDIF(PNG_FOUND)

	Find_Package(SDL)

	IF(SDL_FOUND)
		SET(HAVE_LIBSDL 1)
		MESSAGE(STATUS "Looking for library SDL - found")
	ELSE(SDL_FOUND)
		MESSAGE(STATUS "Looking for library SDL - NOT found")
	ENDIF(SDL_FOUND)

ENDMACRO(CHECK_PACKAGES)