Make dp_modpack game agnostic using XCompat (#14)

* .

* Add `material.sandstone` (not in upstream xcompat yet)

signs_api/README.md

@@ -5,7 +5,7 @@ No actual signs get registered by this mod, the signs are defined in the sign su
 
 For more information, see the [forum topic](https://forum.minetest.net/viewtopic.php?t=19365) at the Minetest forums.
 
-**Dependancies**: default, display\_lib, font\_lib
+**Dependencies**: xcompat, display\_lib, font\_lib
 
 **License**: Code under LGPL, Textures and models under CC-BY-SA
 

signs_api/init.lua

@@ -67,8 +67,7 @@ function signs_api.set_formspec(pos)
 		fs = fs.."button[1,"..y..";2,1;font;"..FS("Font").."]"
 		fs = fs.."button_exit[3,"..y..";2,1;ok;"..FS("Write").."]"
 		y = y + 0.8
-		fs = "size[6,"..y.."]"..default.gui_bg..
-			default.gui_bg_img..default.gui_slots..fs
+		fs = "size[6,"..y.."]"..fs
 
 		meta:set_string("formspec", fs)
 	end
@@ -171,7 +170,7 @@ function signs_api.register_sign(mod, name, model)
 		},
 		groups = {choppy=2, dig_immediate=2, not_blocking_trains=1, display_api=1,signs_api_formspec_lbm=1},
 		is_ground_content = false,
-		sounds = default.node_sound_defaults(),
+		sounds = xcompat.sounds.node_sound_default(),
 		display_entities = {
 			["signs:display_text"] = {
 					on_display_update = font_api.on_display_update,

signs_api/mod.conf

@@ -1,4 +1,4 @@
 name = signs_api
 title = Signs API
 description = A library providing various helper functions for registereing signs with text display
-depends = default,display_api,font_api
+depends = display_api, font_api, xcompat