stairs no longer dependency, will use only when found

crops/hemp.lua

@@ -111,21 +111,24 @@ minetest.register_craft( {
 	},
 })
 
--- register stairs
-if stairs and stairs.mod and stairs.mod == "redo" then
+-- check and register stairs
+if minetest.global_exists("stairs") then
 
-stairs.register_all("hemp_block", "farming:hemp_block",
+	if stairs.mod and stairs.mod == "redo" then
+
+		stairs.register_all("hemp_block", "farming:hemp_block",
 			{snappy = 1, flammable = 2},
 			{"farming_hemp_block.png"},
 			"Hemp Block",
 			default.node_sound_leaves_defaults())
-else
+	else
 
-stairs.register_stair_and_slab("hemp_block", "farming:hemp_block",
+		stairs.register_stair_and_slab("hemp_block", "farming:hemp_block",
 			{snappy = 1, flammable = 2},
 			{"farming_hemp_block.png"},
 			"Hemp Block",
 			default.node_sound_leaves_defaults())
+	end
 end
 
 -- paper

crops/wheat.lua

@@ -51,21 +51,25 @@ minetest.register_craft({
 	}
 })
 
-if stairs and stairs.mod and stairs.mod == "redo" then
+-- check and register stairs
+if minetest.global_exists("stairs") then
 
-stairs.register_all("straw", "farming:straw",
+	if stairs.mod and stairs.mod == "redo" then
+
+		stairs.register_all("straw", "farming:straw",
 			{snappy = 3, flammable = 4},
 			{"farming_straw.png"},
 			"Straw",
 			default.node_sound_leaves_defaults())
-else
+	else
 
-stairs.register_stair_and_slab("straw", "farming:straw",
+		stairs.register_stair_and_slab("straw", "farming:straw",
 			{snappy = 3, flammable = 4},
 			{"farming_straw.png"},
 			"Straw Stair",
 			"Straw Slab",
 			default.node_sound_leaves_defaults())
+	end
 end
 
 -- flour

depends.txt

@@ -1,5 +1,5 @@
 default
-stairs
+stairs?
 intllib?
 lucky_block?
 toolranks?