# LuaJIT
option(ENABLE_LUAJIT "Enable LuaJIT support" TRUE)
set(USE_LUAJIT FALSE PARENT_SCOPE)
option(REQUIRE_LUAJIT "Require LuaJIT support" FALSE)
if(REQUIRE_LUAJIT)
	set(ENABLE_LUAJIT TRUE)
endif()
if(ENABLE_LUAJIT)
	find_package(LuaJIT)
	if(LUAJIT_FOUND)
		set(USE_LUAJIT TRUE)
		set(USE_LUAJIT TRUE PARENT_SCOPE)
		message (STATUS "Using LuaJIT provided by system.")
	elseif(REQUIRE_LUAJIT)
		message(FATAL_ERROR "LuaJIT not found whereas REQUIRE_LUAJIT=\"TRUE\" is used.\n"
			"To continue, either install LuaJIT or do not use REQUIRE_LUAJIT=\"TRUE\".")
	endif()
else()
	message (STATUS "LuaJIT detection disabled! (ENABLE_LUAJIT=0)")
endif()

if(NOT USE_LUAJIT)
	message(STATUS "LuaJIT not found, using bundled Lua.")
	set(LUA_LIBRARY lua PARENT_SCOPE)
	set(LUA_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lua/src PARENT_SCOPE)
	add_subdirectory(lua)
endif()

find_package(GMP REQUIRED)
find_package(Json REQUIRED)