--- configure.in
+++ configure.in	2012-06-26 16:30:51.496510306 +0000
@@ -420,7 +420,8 @@ case "${canonical}" in
     case ${canonical} in
       alpha*)	machine=alpha ;;
       s390x-*)	machine=ibms390x ;;
-      powerpc*)	machine=macppc ;;
+      powerpc*|ppc*)
+		machine=macppc ;;
       sparc*)	machine=sparc ;;
       ia64*)	machine=ia64 ;;
       m68k*)	machine=m68k ;;
@@ -1050,7 +1051,7 @@ if test "x$crt_files" != x; then
       test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
       ;;
 
-      powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
+      powerpc64-*-linux-gnu* | ppc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
     esac
 
     case "$opsys" in
--- src/m/macppc.h
+++ src/m/macppc.h	2012-06-26 16:31:30.584509749 +0000
@@ -17,6 +17,12 @@ GNU General Public License for more deta
 You should have received a copy of the GNU General Public License
 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
+#ifdef __powerpc64__
+#ifndef _ARCH_PPC64
+#define _ARCH_PPC64
+#endif
+#endif
+
 #ifdef _ARCH_PPC64
 #ifndef _LP64
 #define _LP64