Merge abarkov@bk-internal.mysql.com:/home/bk/mysql-4.1

into  mysql.com:/usr/home/bar/mysql-4.1.b12476

include/m_string.h

@@ -122,15 +122,6 @@ extern	void bmove_align(gptr dst,const gptr src,uint len);
 #define bmove512(A,B,C) memcpy(A,B,C)
 #endif
 
-#ifdef HAVE_purify
-#define memcpy_overlap(A,B,C) \
-DBUG_ASSERT((A) <= (B) || ((B)+(C)) <= (A)); \
-bmove((byte*) (A),(byte*) (B),(size_t) (C));
-#else
-#define memcpy_overlap(A,B,C) memcpy((A), (B), (C))
-#endif /* HAVE_purify */
-
-
 	/* Prototypes for string functions */
 
 #if !defined(bfill) && !defined(HAVE_BFILL)

myisam/mi_search.c

@@ -978,7 +978,7 @@ uint _mi_get_binary_pack_key(register MI_KEYDEF *keyinfo, uint nod_flag,
     }
     DBUG_PRINT("info",("key: %lx  from: %lx  length: %u",
 		       (long) key, (long) from, length));
-    memcpy_overlap((byte*) key, (byte*) from, (size_t) length);
+    memmove((byte*) key, (byte*) from, (size_t) length);
     key+=length;
     from+=length;
   }

strings/ctype-tis620.c

@@ -498,7 +498,7 @@ static uint thai2sortable(uchar *tstr, uint len)
 	  l2bias use to control position weight of l2char
 	  example (*=l2char) XX*X must come before X*XX
 	*/
-	memcpy_overlap((char*) p, (char*) (p+1), tlen-1);
+	memmove((char*) p, (char*) (p+1), tlen-1);
 	tstr[len-1]= l2bias + t_ctype0[1]- L2_GARAN +1;
 	p--;
 	continue;