Index: lua-5.1.5/etc/lua.pc
===================================================================
--- lua-5.1.5.orig/etc/lua.pc
+++ lua-5.1.5/etc/lua.pc
@@ -25,7 +25,7 @@ Name: Lua
 Description: An Extensible Extension Language
 Version: ${R}
 Requires: 
-Libs: -llua -lm
+Libs: -llua -lm -ldl
 Cflags: -I${includedir}
 
 # (end of lua.pc)