Also look under /usr/share/games/minetest for mods, so that minetest-mod-* packages actually work

---
 builtin/modmgr.lua |    1 +
 1 file changed, 1 insertion(+)

Index: b/builtin/modmgr.lua
===================================================================
--- a/builtin/modmgr.lua
+++ b/builtin/modmgr.lua
@@ -900,6 +900,7 @@
 		modpath ~= "" then
 		get_mods(modpath,global_mods)
 	end
+	get_mods("/usr/share/games/minetest/mods",global_mods)
 
 	for i=1,#global_mods,1 do
 		global_mods[i].typ = "global_mod"
