1 files changed, 20 insertions, 5 deletions

diff --git a/src/compat.h b/src/compat.h
index 496986b..6048974 100644
--- a/src/compat.h
+++ b/src/compat.h
@@ -5,9 +5,10 @@
 #include "lualib.h"
 #include "lauxlib.h"
 
-// code is now using Lua 5.2 API
-// add Lua 5.2 API when building for Lua 5.1
+// code is now preferring Lua 5.3 API
+// add some Lua 5.3-style API when building for Lua 5.1
 #if LUA_VERSION_NUM == 501
+#define lua501_equal lua_equal
 #define lua_absindex( L, idx) (((idx) >= 0 || (idx) <= LUA_REGISTRYINDEX) ? (idx) : lua_gettop(L) + (idx) +1)
 #define lua_pushglobaltable(L) lua_pushvalue( L, LUA_GLOBALSINDEX)
 #define lua_setuservalue lua_setfenv
@@ -17,17 +18,31 @@
 #define LUA_OK 0
 #define LUA_ERRGCMM 666 // doesn't exist in Lua 5.1, we don't care about the actual value
 void luaL_requiref (lua_State* L, const char* modname, lua_CFunction openf, int glb); // implementation copied from Lua 5.2 sources
+#define lua503_dump( L, writer, data, strip) lua_dump( L, writer, data)
 #endif // LUA_VERSION_NUM == 501
 
 // wrap Lua 5.2 calls under Lua 5.1 API when it is simpler that way
 #if LUA_VERSION_NUM == 502
-#ifndef lua_equal // already defined when compatibility is active in luaconf.h
-#define lua_equal( L, a, b) lua_compare( L, a, b, LUA_OPEQ)
-#endif // lua_equal
+#ifndef lua501_equal // already defined when compatibility is active in luaconf.h
+#define lua501_equal( L, a, b) lua_compare( L, a, b, LUA_OPEQ)
+#endif // lua501_equal
 #ifndef lua_lessthan // already defined when compatibility is active in luaconf.h
 #define lua_lessthan( L, a, b) lua_compare( L, a, b, LUA_OPLT)
 #endif // lua_lessthan
 #define luaG_registerlibfuncs( L, _funcs) luaL_setfuncs( L, _funcs, 0)
+#define lua503_dump( L, writer, data, strip) lua_dump( L, writer, data)
 #endif // LUA_VERSION_NUM == 502
 
+// wrap Lua 5.3 calls under Lua 5.1 API when it is simpler that way
+#if LUA_VERSION_NUM == 503
+#ifndef lua501_equal // already defined when compatibility is active in luaconf.h
+#define lua501_equal( L, a, b) lua_compare( L, a, b, LUA_OPEQ)
+#endif // lua501_equal
+#ifndef lua_lessthan // already defined when compatibility is active in luaconf.h
+#define lua_lessthan( L, a, b) lua_compare( L, a, b, LUA_OPLT)
+#endif // lua_lessthan
+#define luaG_registerlibfuncs( L, _funcs) luaL_setfuncs( L, _funcs, 0)
+#define lua503_dump lua_dump
+#endif // LUA_VERSION_NUM == 503
+
 #endif // __COMPAT_H__