diff --git a/lmem.c b/lmem.c
index 9841092a..bd6b58da 100644
--- a/lmem.c
+++ b/lmem.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lmem.c,v 1.35 2000/08/04 19:38:35 roberto Exp roberto $
+** $Id: lmem.c,v 1.36 2000/08/09 19:16:57 roberto Exp roberto $
 ** Interface to Memory Manager
 ** See Copyright Notice in lua.h
 */
@@ -15,15 +15,6 @@
 #include "lstate.h"
 
 
-/*
-** Real ISO (ANSI) systems do not need these tests;
-** but some systems (Sun OS) are not that ISO...
-*/
-#ifdef OLD_ANSI
-#define realloc(b,s)	((b) == NULL ? malloc(s) : (realloc)(b, s))
-#define free(b)		if (b) (free)(b)
-#endif
-
 
 
 #ifdef DEBUG
@@ -38,11 +29,8 @@
 #include <limits.h>
 #include <string.h>
 
-#undef realloc
-#undef malloc
-#undef free
 #define realloc(b, s)	debug_realloc(b, s)
-#define malloc(b)	debug_realloc(NULL, 0)
+#define malloc(b)	debug_realloc(NULL, b)
 #define free(b)		debug_realloc(b, 0)
 
 
@@ -119,6 +107,16 @@ static void *debug_realloc (void *block, size_t size) {
 
 
 
+/*
+** Real ISO (ANSI) systems do not need these tests;
+** but some systems (Sun OS) are not that ISO...
+*/
+#ifdef OLD_ANSI
+#define realloc(b,s)	((b) == NULL ? malloc(s) : (realloc)(b, s))
+#define free(b)		if (b) (free)(b)
+#endif
+
+
 void *luaM_growaux (lua_State *L, void *block, size_t nelems,
                int inc, size_t size, const char *errormsg, size_t limit) {
   size_t newn = nelems+inc;
diff --git a/lobject.c b/lobject.c
index 4c06bf72..fd54eefd 100644
--- a/lobject.c
+++ b/lobject.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lobject.c,v 1.52 2000/10/05 12:14:08 roberto Exp roberto $
+** $Id: lobject.c,v 1.53 2000/10/09 13:47:32 roberto Exp roberto $
 ** Some generic functions over Lua objects
 ** See Copyright Notice in lua.h
 */
@@ -87,16 +87,14 @@ void luaO_verror (lua_State *L, const char *fmt, ...) {
 }
 
 
-#define EXTRALEN	sizeof(" string \"s...\" ")
-
 void luaO_chunkid (char *out, const char *source, int bufflen) {
   if (*source == '=')
-    sprintf(out, "%.*s", bufflen, source+1);  /* remove first char */
+    sprintf(out, "%.*s", bufflen-1, source+1);  /* remove first char */
   else {
-    bufflen -= EXTRALEN;
     if (*source == '@') {
       int l;
       source++;  /* skip the `@' */
+      bufflen -= sizeof("file `...%s'");
       l = strlen(source);
       if (l>bufflen) {
         source += (l-bufflen);  /* get last part of file name */
@@ -107,6 +105,7 @@ void luaO_chunkid (char *out, const char *source, int bufflen) {
     }
     else {
       int len = strcspn(source, "\n");  /* stop at first newline */
+      bufflen -= sizeof("string \"%.*s...\"");
       if (len > bufflen) len = bufflen;
       if (source[len] != '\0')  /* must truncate? */
         sprintf(out, "string \"%.*s...\"", len, source);