@@ -1199,7 +1199,7 @@ LUA_API int lua_gc (lua_State *L, int what, ...) {
     }
     case LUA_GCSTEP: {
       lu_byte oldstp = g->gcstp;
-      l_obj n = va_arg(argp, int);
+      l_obj n = cast(l_obj, va_arg(argp, size_t));
       int work = 0;  /* true if GC did some work */
       g->gcstp = 0;  /* allow GC to run (other bits must be zero here) */
       if (n <= 0)
 
@@ -216,7 +216,7 @@ static int luaB_collectgarbage (lua_State *L) {
     }
     case LUA_GCSTEP: {
       lua_Integer n = luaL_optinteger(L, 2, 0);
-      int res = lua_gc(L, o, (int)n);
+      int res = lua_gc(L, o, cast_sizet(n));
       checkvalres(res);
       lua_pushboolean(L, res);
       return 1;
 
@@ -3326,7 +3326,7 @@ Returns the remainder of dividing the current amount of bytes of
 memory in use by Lua by 1024.
 }
 
-@item{@defid{LUA_GCSTEP} (int n)|
+@item{@defid{LUA_GCSTEP} (size_t n)|
 Performs a step of garbage collection.
 }
Original file line number	Diff line number	Diff line change
`@@ -1199,7 +1199,7 @@ LUA_API int lua_gc (lua_State *L, int what, ...) {`
`1199`	`1199`	`}`
`1200`	`1200`	`case LUA_GCSTEP: {`
`1201`	`1201`	`lu_byte oldstp = g->gcstp;`
`1202`		`- l_obj n = va_arg(argp, int);`
	`1202`	`+ l_obj n = cast(l_obj, va_arg(argp, size_t));`
`1203`	`1203`	`int work = 0; /* true if GC did some work */`
`1204`	`1204`	`g->gcstp = 0; /* allow GC to run (other bits must be zero here) */`
`1205`	`1205`	`if (n <= 0)`
Original file line number	Diff line number	Diff line change
`@@ -216,7 +216,7 @@ static int luaB_collectgarbage (lua_State *L) {`
`216`	`216`	`}`
`217`	`217`	`case LUA_GCSTEP: {`
`218`	`218`	`lua_Integer n = luaL_optinteger(L, 2, 0);`
`219`		`- int res = lua_gc(L, o, (int)n);`
	`219`	`+ int res = lua_gc(L, o, cast_sizet(n));`
`220`	`220`	`checkvalres(res);`
`221`	`221`	`lua_pushboolean(L, res);`
`222`	`222`	`return 1;`
Original file line number	Diff line number	Diff line change
`@@ -3326,7 +3326,7 @@ Returns the remainder of dividing the current amount of bytes of`
`3326`	`3326`	`memory in use by Lua by 1024.`
`3327`	`3327`	`}`
`3328`	`3328`
`3329`		`-@item{@defid{LUA_GCSTEP} (int n)\|`
	`3329`	`+@item{@defid{LUA_GCSTEP} (size_t n)\|`
`3330`	`3330`	`Performs a step of garbage collection.`
`3331`	`3331`	`}`
`3332`	`3332`