[patch] Fix missing, unnecessary symbol lookups with lua >= 5.3

[Felix Schnizlein]

Dear vim dev list,

With lua 5.3 symbols has changed. To make vim work with lua 5.3, I
wrote a patch to remove unnecessary symbol lookups (namely lua_replace)
and added new needed functions.

I briefly tested the patch with a few stupid lua commands and
neocomplcache.

Regards

Felix



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Index: a/src/if_lua.c
===================================================================
--- a/src/if_lua.c
+++ b/src/if_lua.c
@@ -111,7 +111,12 @@ static luaV_Dict *luaV_pushdict (lua_Sta
 #define lua_tointeger dll_lua_tointeger
 #define lua_call dll_lua_call
 #define lua_pcall dll_lua_pcall
+
+#elif LUA_VERSION_NUM <= 502
+#define lua_replace dll_lua_replace
+#define lua_remove dll_lua_remove
 #else
+#define lua_rotate dll_lua_rotate
 #define lua_tonumberx dll_lua_tonumberx
 #define lua_tointegerx dll_lua_tointegerx
 #define lua_callk dll_lua_callk
@@ -124,8 +129,7 @@ static luaV_Dict *luaV_pushdict (lua_Sta
 #define lua_gettop dll_lua_gettop
 #define lua_settop dll_lua_settop
 #define lua_pushvalue dll_lua_pushvalue
-#define lua_replace dll_lua_replace
-#define lua_remove dll_lua_remove
+#define lua_copy dll_lua_copy
 #define lua_isnumber dll_lua_isnumber
 #define lua_isstring dll_lua_isstring
 #define lua_type dll_lua_type
@@ -195,7 +199,12 @@ lua_Number (*dll_lua_tonumber) (lua_Stat
 lua_Integer (*dll_lua_tointeger) (lua_State *L, int idx);
 void (*dll_lua_call) (lua_State *L, int nargs, int nresults);
 int (*dll_lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc);
+#elif LUA_VERSION_NUM <= 502
+void (*dll_lua_replace) (lua_State *L, int idx);
+void (*dll_lua_remove) (lua_State *L, int idx);
 #else
+
+void  (*dll_lua_rotate) (lua_State *L, int idx, int n);
 lua_Number (*dll_lua_tonumberx) (lua_State *L, int idx, int *isnum);
 lua_Integer (*dll_lua_tointegerx) (lua_State *L, int idx, int *isnum);
 void (*dll_lua_callk) (lua_State *L, int nargs, int nresults, int ctx,
@@ -204,14 +213,13 @@ int (*dll_lua_pcallk) (lua_State *L, int
 	int ctx, lua_CFunction k);
 void (*dll_lua_getglobal) (lua_State *L, const char *var);
 void (*dll_lua_setglobal) (lua_State *L, const char *var);
+void (*dll_lua_copy) (lua_State *L, int fromidx, int toidx);
 #endif
 const char *(*dll_lua_typename) (lua_State *L, int tp);
 void       (*dll_lua_close) (lua_State *L);
 int (*dll_lua_gettop) (lua_State *L);
 void (*dll_lua_settop) (lua_State *L, int idx);
 void (*dll_lua_pushvalue) (lua_State *L, int idx);
-void (*dll_lua_replace) (lua_State *L, int idx);
-void (*dll_lua_remove) (lua_State *L, int idx);
 int (*dll_lua_isnumber) (lua_State *L, int idx);
 int (*dll_lua_isstring) (lua_State *L, int idx);
 int (*dll_lua_type) (lua_State *L, int idx);
@@ -288,7 +296,12 @@ static const luaV_Reg luaV_dll[] = {
     {"lua_tointeger", (luaV_function) &dll_lua_tointeger},
     {"lua_call", (luaV_function) &dll_lua_call},
     {"lua_pcall", (luaV_function) &dll_lua_pcall},
+#elif LUA_VERSION_NUM <= 502
+    {"lua_replace", (luaV_function) &dll_lua_replace},
+    {"lua_remove", (luaV_function) &dll_lua_remove},
 #else
+    {"lua_rotate", (luaV_function) &dll_lua_rotate},
+    {"lua_copy", (luaV_function) &dll_lua_copy},
     {"lua_tonumberx", (luaV_function) &dll_lua_tonumberx},
     {"lua_tointegerx", (luaV_function) &dll_lua_tointegerx},
     {"lua_callk", (luaV_function) &dll_lua_callk},
@@ -301,8 +314,6 @@ static const luaV_Reg luaV_dll[] = {
     {"lua_gettop", (luaV_function) &dll_lua_gettop},
     {"lua_settop", (luaV_function) &dll_lua_settop},
     {"lua_pushvalue", (luaV_function) &dll_lua_pushvalue},
-    {"lua_replace", (luaV_function) &dll_lua_replace},
-    {"lua_remove", (luaV_function) &dll_lua_remove},
     {"lua_isnumber", (luaV_function) &dll_lua_isnumber},
     {"lua_isstring", (luaV_function) &dll_lua_isstring},
     {"lua_type", (luaV_function) &dll_lua_type},