util-src/*.c: Don't create globals when loaded

util-src/encodings.c

@@ -361,17 +361,12 @@ static const luaL_Reg Reg_idna[] =
 
 /***************** end *****************/
 
-static const luaL_Reg Reg[] =
-{
-	{ NULL,		NULL	}
-};
-
 LUALIB_API int luaopen_util_encodings(lua_State *L)
 {
 #ifdef USE_STRINGPREP_ICU
 	init_icu();
 #endif
-	luaL_register(L, "encodings", Reg);
+	lua_newtable(L);
 
 	lua_pushliteral(L, "base64");
 	lua_newtable(L);

util-src/hashes.c

@@ -203,7 +203,8 @@ static const luaL_Reg Reg[] =
 
 LUALIB_API int luaopen_util_hashes(lua_State *L)
 {
-	luaL_register(L, "hashes", Reg);
+	lua_newtable(L);
+	luaL_register(L, NULL, Reg);
 	lua_pushliteral(L, "version");			/** version */
 	lua_pushliteral(L, "-3.14");
 	lua_settable(L,-3);

util-src/net.c

@@ -112,6 +112,7 @@ int luaopen_util_net(lua_State* L)
 		{ NULL, NULL }
 	};
 
-	luaL_register(L, "net",  exports);
+	lua_newtable(L);
+	luaL_register(L, NULL,  exports);
 	return 1;
 }

util-src/pposix.c

@@ -768,7 +768,8 @@ int luaopen_util_pposix(lua_State *L)
 		{ NULL, NULL }
 	};
 
-	luaL_register(L, "pposix",  exports);
+	lua_newtable(L);
+	luaL_register(L, NULL,  exports);
 
 	lua_pushliteral(L, "pposix");
 	lua_setfield(L, -2, "_NAME");

util-src/signal.c

@@ -384,7 +384,8 @@ int luaopen_util_signal(lua_State *L)
   int i = 0;
 
   /* add the library */
-  luaL_register(L, "signal", lsignal_lib);
+  lua_newtable(L);
+  luaL_register(L, NULL, lsignal_lib);
 
   /* push lua_signals table into the registry */
   /* put the signals inside the library table too,

util-src/windows.c

@@ -81,7 +81,8 @@ static const luaL_Reg Reg[] =
 };
 
 LUALIB_API int luaopen_util_windows(lua_State *L) {
-	luaL_register(L, "windows", Reg);
+	lua_newtable(L);
+	luaL_register(L, NULL, Reg);
 	lua_pushliteral(L, "version");			/** version */
 	lua_pushliteral(L, "-3.14");
 	lua_settable(L,-3);