[Swig-user] Lua 5.2 alpha compatibility

[liam m. <lia...@go...>]

Hi,
Just a heads up that a couple of things have changed in present Lua 5.2
releases yet the only things which seem to effect Swig are the following
two.

1) The psuedo index LUA_GLOBALSINDEX has been removed.
Swig call this in the following function

/* this is the initialization function
  added at the very end of the code
  the function is always called SWIG_init, but an eariler #define will
rename it
*/
SWIGEXPORT int SWIG_init(lua_State* L)
{
  int i;
  /* start with global table */
  lua_pushvalue(L,LUA_GLOBALSINDEX);
   /* SWIG's internal initalisation */

This could be replaced with the following code which is recommended with for
the current version
lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS);
yet it is not compatible with Lua 5.1, so instead you could replace with
lua_getglobal(L,"_G")


2) The alais for luaL_Reg which was luaL_reg has been removed.
This could changed to luaL_Reg and not have any compatibility issues.

Liam