diff -up lua-5.2.2/configure.ac.compat-module lua-5.2.2/configure.ac
--- lua-5.2.2/configure.ac.compat-module	2013-05-10 10:16:05.344137597 -0400
+++ lua-5.2.2/configure.ac	2013-05-10 10:16:05.357137596 -0400
@@ -11,6 +11,20 @@ AC_PROG_CC
 AC_PROG_LIBTOOL
 
 AC_ARG_WITH(
+  [compat-module],
+  [AC_HELP_STRING([--with-compat-module], [Enable LUA_COMPAT_MODULE functions [default=no]])],
+  [use_compat_module=$withval],
+  [use_compat_module=no]
+)
+
+COMPAT_DEFS="#undef LUA_COMPAT_ALL"
+if test "x$use_compat_module" == "xyes"; then
+  COMPAT_DEFS="#define LUA_COMPAT_5_1
+#define LUA_COMPAT_5_2"
+fi
+AC_SUBST(COMPAT_DEFS)
+
+AC_ARG_WITH(
   [readline],
   [AC_HELP_STRING([--with-readline], [Use readline for interpreter input [default=yes]])],
   [use_readline=$withval],
diff -up lua-5.2.2/src/luaconf.h.template.in.compat-module lua-5.2.2/src/luaconf.h.template.in
--- lua-5.2.2/src/luaconf.h.template.in.compat-module	2013-05-10 10:25:42.586116963 -0400
+++ lua-5.2.2/src/luaconf.h.template.in	2013-05-10 10:26:29.957115269 -0400
@@ -15,6 +15,7 @@
 @LUA_DL_DEFS@
 @LUA_BUILD_AS_DLL_DEFS@
 @READLINE_DEFS@
+@COMPAT_DEFS@
 
 
 /*