From b2c129984c60f7ed8651dab31d3b281c5e1ecf38 Mon Sep 17 00:00:00 2001
From: Wuzzy <almikes@aol.com>
Date: Wed, 15 Feb 2017 03:48:03 +0100
Subject: [PATCH] Declare optional dependencies

---
 depends.txt |  3 ++-
 init.lua    | 53 ++++++++++++++++++++++++++++-------------------------
 2 files changed, 30 insertions(+), 26 deletions(-)

diff --git a/depends.txt b/depends.txt
index 6d0fae9..d84623a 100644
--- a/depends.txt
+++ b/depends.txt
@@ -1,2 +1,3 @@
 mesecons
-doc
+doc?
+default?
diff --git a/init.lua b/init.lua
index b26ed0c..6a1d989 100644
--- a/init.lua
+++ b/init.lua
@@ -170,31 +170,34 @@ minetest.register_node("mesecons_window:filter2_open", {
 	end
 })
 
+if minetest.get_modpath("default") then
+	minetest.register_craft({
+		output = 'mesecons_window:window_closed',
+		recipe = {
+			{"", "default:glass", ""},
+			{"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"},
+		}
+	})
 
-minetest.register_craft({
-	output = 'mesecons_window:window_closed',
-	recipe = {
-		{"", "default:glass", ""},
-		{"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"},
-	}
-})
+	minetest.register_craft({
+		output = 'mesecons_window:filter_closed',
+		recipe = {
+			{"", "default:pine_needles", ""},
+			{"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"},
+		}
+	})
 
-minetest.register_craft({
-	output = 'mesecons_window:filter_closed',
-	recipe = {
-		{"", "default:pine_needles", ""},
-		{"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"},
-	}
-})
+	minetest.register_craft({
+		output = 'mesecons_window:filter2_closed',
+		recipe = {
+			{"", "default:glass", ""},
+			{"default:pine_needles", "group:mesecon_conductor_craftable", "default:pine_needles"},
+		}
+	})
+end
 
-minetest.register_craft({
-	output = 'mesecons_window:filter2_closed',
-	recipe = {
-		{"", "default:glass", ""},
-		{"default:pine_needles", "group:mesecon_conductor_craftable", "default:pine_needles"},
-	}
-})
-
-doc.add_entry_alias("nodes", "mesecons_window:window_closed", "nodes", "mesecons_window:window_open")
-doc.add_entry_alias("nodes", "mesecons_window:filter_closed", "nodes", "mesecons_window:filter_open")
-doc.add_entry_alias("nodes", "mesecons_window:filter2_closed", "nodes", "mesecons_window:filter2_open")
+if minetest.get_modpath("doc") then
+	doc.add_entry_alias("nodes", "mesecons_window:window_closed", "nodes", "mesecons_window:window_open")
+	doc.add_entry_alias("nodes", "mesecons_window:filter_closed", "nodes", "mesecons_window:filter_open")
+	doc.add_entry_alias("nodes", "mesecons_window:filter2_closed", "nodes", "mesecons_window:filter2_open")
+end