stairs no longer dependency, will use only when found

crops/hemp.lua

@@ -111,8 +111,10 @@ 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
+
+	if stairs.mod and stairs.mod == "redo" then
 
 		stairs.register_all("hemp_block", "farming:hemp_block",
 			{snappy = 1, flammable = 2},
@@ -127,6 +129,7 @@ stairs.register_stair_and_slab("hemp_block", "farming:hemp_block",
 			"Hemp Block",
 			default.node_sound_leaves_defaults())
 	end
+end
 
 -- paper
 minetest.register_craft( {

crops/wheat.lua

@@ -51,7 +51,10 @@ minetest.register_craft({
 	}
 })
 
-if stairs and stairs.mod and stairs.mod == "redo" then
+-- check and register stairs
+if minetest.global_exists("stairs") then
+
+	if stairs.mod and stairs.mod == "redo" then
 
 		stairs.register_all("straw", "farming:straw",
 			{snappy = 3, flammable = 4},
@@ -67,6 +70,7 @@ stairs.register_stair_and_slab("straw", "farming:straw",
 			"Straw Slab",
 			default.node_sound_leaves_defaults())
 	end
+end
 
 -- flour
 minetest.register_craftitem("farming:flour", {

depends.txt

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