Maerge in default

--HG--
branch : minor

src/scripts/boot.lua

@@ -324,6 +324,7 @@ function love.init()
 	end
 
 	-- Setup screen here.
+	local has_window = false
 	if c.screen and c.modules.graphics then
 		if love.graphics.checkMode(c.screen.width, c.screen.height, c.screen.fullscreen) or (c.screen.width == 0 and c.screen.height == 0) then
 			assert(love.graphics.setMode(c.screen.width, c.screen.height,
@@ -376,7 +377,7 @@ function love.init()
 				"The game might still work, but it is not guaranteed.\n" ..
 				"Furthermore, this means one should not judge this game or the engine if not."
 			print(msg)
-			if love.graphics and love.timer and love.event then
+			if has_window and love.timer and love.event then
 				love.event.pump()
 				love.graphics.setBackgroundColor(89, 157, 220)
 				love.graphics.clear()