Don't use mcl_fences.register_fence_def if not present

nodes.lua

@@ -591,6 +591,8 @@ if industrialtest.mtgAvailable then
 		}
 	})
 elseif industrialtest.mclAvailable then
+	-- Some MCL2 forks define this function so use it if available
+	if mcl_fences.register_fence_def then
 		mcl_fences.register_fence_def("iron_fence",{
 			description=S("Iron Fence"),
 			tiles={"default_steel_block.png"},
@@ -607,10 +609,21 @@ elseif industrialtest.mclAvailable then
 			on_destruct=ironFenceOnDestruct,
 			after_destruct=function(pos,oldnode,oldmeta)
 				ironFenceDetach(oldmeta)
-		end,
+			end
-		_mcl_fences_baseitem="industrialtest:iron_plate",
-		_mcl_fences_stickreplacer="industrialtest:iron_plate"
 		})
+	else
+		mcl_fences.register_fence("iron_fence",S("Iron Fence"),"default_steel_block.png",{_industrialtest_metalFence=1},4,5,{"industrialtest:magnetizer","group:fence"},mcl_sounds.node_sound_metal_defaults())
+	end
+	if minetest.registered_nodes["mcl_fences:iron_fence"] then
 		-- mcl_fences.register_fence_def registers fences in it's own namespace so register alias here to keep compatibility
 		minetest.register_alias("industrialtest:iron_fence","mcl_fences:iron_fence")
 	end
+	minetest.register_craft({
+		type="shaped",
+		output="industrialtest:iron_fence 3",
+		recipe={
+			{"industrialtest:iron_plate","industrialtest:iron_plate","industrialtest:iron_plate"},
+			{"industrialtest:iron_plate","industrialtest:iron_plate","industrialtest:iron_plate"}
+		}
+	})
+end