Index: luaposix-5.1.2/Makefile
===================================================================
--- luaposix-5.1.2.orig/Makefile	2008-01-29 14:49:27.000000000 +0100
+++ luaposix-5.1.2/Makefile	2008-05-28 14:15:30.000000000 +0200
@@ -34,6 +34,13 @@
 
 T= 		$(MYLIB).so
 
+OS=$(shell uname)
+ifeq ($(OS),Darwin)
+  LDFLAGS_SHARED=-bundle -undefined dynamic_lookup
+else
+  LDFLAGS_SHARED=-shared
+endif
+
 # targets
 phony += all
 all:	$T
@@ -43,7 +50,7 @@
 	$(LUA) test.lua
 
 $T:	$(OBJS)
-	$(CC) $(LDFLAGS) -o $@ -shared $(OBJS)
+	$(CC) $(LDFLAGS) -o $@ $(LDFLAGS_SHARED) $(OBJS)
 
 $(OBJS): modemuncher.c