--- stdlib/longlong.h~	2002-09-29 18:45:58.000000000 +0100
+++ stdlib/longlong.h	2004-03-20 19:16:44.000000000 +0000
@@ -210,6 +210,14 @@
 	     "rI" ((USItype) (bh)),					\
 	     "r" ((USItype) (al)),					\
 	     "rI" ((USItype) (bl)))
+/* v3m and all higher arches have long multiply support.  */
+#if !defined(__ARM_ARCH_2__) && !defined(__ARM_ARCH_3__)
+#define umul_ppmm(xh, xl, a, b) \
+  __asm__ ("umull %0,%1,%2,%3" : "=&r" (xl), "=&r" (xh) : "r" (a), "r" (b))
+#define UMUL_TIME 5
+#define smul_ppmm(xh, xl, a, b) \
+  __asm__ ("smull %0,%1,%2,%3" : "=&r" (xl), "=&r" (xh) : "r" (a), "r" (b))
+#else
 #define umul_ppmm(xh, xl, a, b) \
 {register USItype __t0, __t1, __t2;					\
   __asm__ ("%@ Inlined umul_ppmm\n"					\
@@ -231,7 +239,14 @@
 	   : "r" ((USItype) (a)),					\
 	     "r" ((USItype) (b)));}
 #define UMUL_TIME 20
+#endif
 #define UDIV_TIME 100
+
+#if defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__)
+#define count_leading_zeros(COUNT,X)	((COUNT) = __builtin_clz (X))
+#define COUNT_LEADING_ZEROS_0 32
+#endif
+
 #endif /* __arm__ */
 
 #if defined (__hppa) && W_TYPE_SIZE == 32
--- /dev/null	2004-02-02 20:32:13.000000000 +0000
+++ ports/sysdeps/arm/mp_clz_tab.c	2004-03-20 19:24:26.000000000 +0000
@@ -0,0 +1,24 @@
+/* __clz_tab -- support for longlong.h
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#if defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__)
+/* Nothing required.  */
+#else
+#include <sysdeps/generic/mp_clz_tab.c>
+#endif
