diff --git a/binutils.spec b/binutils.spec
index f4c2e8d..0c1a477 100644
--- a/binutils.spec
+++ b/binutils.spec
@@ -17,7 +17,7 @@
 Summary: A GNU collection of binary utilities
 Name: %{?cross}binutils%{?_with_debug:-debug}
 Version: 2.22.52.0.1
-Release: 10%{?dist}
+Release: 11%{?dist}
 License: GPLv3+
 Group: Development/Tools
 URL: http://sources.redhat.com/binutils
@@ -179,6 +179,10 @@ do
 done
 touch */configure
 
+%ifarch %{power64}
+%define _target_platform %{_arch}-%{_vendor}-%{_host_os}
+%endif
+
 %build
 echo target is %{binutils_target}
 export CFLAGS="$RPM_OPT_FLAGS"
@@ -292,7 +296,7 @@ rm -f %{buildroot}%{_libdir}/lib{bfd,opcodes}.la
 # Sanity check --enable-64-bit-bfd really works.
 grep '^#define BFD_ARCH_SIZE 64$' %{buildroot}%{_prefix}/include/bfd.h
 # Fix multilib conflicts of generated values by __WORDSIZE-based expressions.
-%ifarch %{ix86} x86_64 ppc ppc64 s390 s390x sh3 sh4 sparc sparc64 arm
+%ifarch %{ix86} x86_64 ppc %{power64} s390 s390x sh3 sh4 sparc sparc64 arm
 sed -i -e '/^#include "ansidecl.h"/{p;s~^.*$~#include <bits/wordsize.h>~;}' \
     -e 's/^#define BFD_DEFAULT_TARGET_SIZE \(32\|64\) *$/#define BFD_DEFAULT_TARGET_SIZE __WORDSIZE/' \
     -e 's/^#define BFD_HOST_64BIT_LONG [01] *$/#define BFD_HOST_64BIT_LONG (__WORDSIZE == 64)/' \
@@ -449,6 +453,9 @@ exit 0
 %endif # %{isnative}
 
 %changelog
+* Tue Jun 26 2012 Nick Clifton <nickc@redhat.com> - 2.22.52.0.1-11
+- Honour %{powerpc64}  (#834651)
+
 * Fri Mar 16 2012 Jakub Jelinek <jakub@redhat.com> - 2.22.52.0.1-10
 - Fix up handling of hidden ifunc relocs on i?86