--- emacs-23.0.94/configure.in.ppc	2009-06-07 18:47:56.000000000 -0400
+++ emacs-23.0.94/configure.in	2009-06-07 18:50:54.000000000 -0400
@@ -371,6 +371,11 @@
     machine=arm opsys=gnu-linux
   ;;
 
+  ppc64-*-linux | \
+  powerpc64-*-linux* )
+    machine=powerpc64 opsys=gnu-linux
+  ;;
+
   ## Apple Darwin / Mac OS X
   *-apple-darwin* )
     case "${canonical}" in
--- emacs-23.0.94/src/m/powerpc64.h.ppc	2009-04-13 11:24:34.000000000 +0200
+++ emacs-23.0.94/src/m/powerpc64.h	2009-04-13 11:24:34.000000000 +0200
@@ -0,0 +1,130 @@
+/* machine description file for PowerPC 64-bit.
+   Copyright (C) 1994, 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GNU Emacs 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#define BITS_PER_LONG 64
+#define BITS_PER_EMACS_INT 64
+#ifndef _LP64
+#define _LP64
+#endif
+
+/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
+   is the most significant byte.  */
+
+#define WORDS_BIG_ENDIAN
+
+/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
+ * group of arguments and treat it as an array of the arguments.  */
+
+#define NO_ARG_ARRAY
+
+/* Define WORD_MACHINE if addresses and such have
+ * to be corrected before they can be used as byte counts.  */
+
+/* #define WORD_MACHINE */
+
+/* Now define a symbol for the cpu type, if your compiler
+   does not define it automatically:
+   Ones defined so far include vax, m68000, ns16000, pyramid,
+   orion, tahoe, APOLLO and many others */
+
+/* Use type EMACS_INT rather than a union, to represent Lisp_Object */
+/* This is desirable for most machines.  */
+
+#define NO_UNION_TYPE
+
+/* Define the type to use.  */
+#define EMACS_INT long
+#define EMACS_UINT unsigned long
+#define SPECIAL_EMACS_INT
+
+/* Data type of load average, as read out of kmem.  */
+
+#define LOAD_AVE_TYPE long
+
+/* Convert that into an integer that is 100 for a load average of 1.0  */
+
+#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
+
+/* Define C_ALLOCA if this machine does not support a true alloca
+   and the one written in C should be used instead.
+   Define HAVE_ALLOCA to say that the system provides a properly
+   working alloca function and it should be used.
+   Define neither one if an assembler-language alloca
+   in the file alloca.s should be used.  */
+
+#define HAVE_ALLOCA
+
+/* Some really obscure 4.2-based systems (like Sequent DYNIX)
+ * do not support asynchronous I/O (using SIGIO) on sockets,
+ * even though it works fine on tty's.  If you have one of
+ * these systems, define the following, and then use it in
+ * config.h (or elsewhere) to decide when (not) to use SIGIO.
+ *
+ * You'd think this would go in an operating-system description file,
+ * but since it only occurs on some, but not all, BSD systems, the
+ * reasonable place to select for it is in the machine description
+ * file.
+ */
+
+/* #define NO_SOCK_SIGIO */
+
+#if defined(__OpenBSD__)
+#define ORDINARY_LINK
+#endif
+
+#define UNEXEC unexelf.o
+
+#define NO_TERMIO
+
+#if defined (LINUX) || defined (__NetBSD__) || defined (__OpenBSD__)
+# define TEXT_END ({ extern int _etext; &_etext; })
+#endif
+
+#if (defined (__NetBSD__) || defined (__OpenBSD__)) && defined (__ELF__)
+#define HAVE_TEXT_START
+#endif
+
+#define PNTR_COMPARISON_TYPE unsigned long
+
+/* On the 64 bit architecture, we can use 60 bits for addresses */
+
+#define VALBITS         60
+
+
+/* This definition of MARKBIT is necessary because of the comparison of
+   ARRAY_MARK_FLAG and MARKBIT in an #if in lisp.h, which cpp doesn't like. */
+
+#define MARKBIT         0x8000000000000000L
+
+
+/* Define XINT and XUINT so that they can take arguments of type int */
+
+#define XINT(a)  (((long) (a) << (BITS_PER_LONG - VALBITS)) >> (BITS_PER_LONG - VALBITS))
+#define XUINT(a) ((long) (a) & VALMASK)
+
+/* Define XPNTR to avoid or'ing with DATA_SEG_BITS */
+
+#define XPNTR(a) XUINT (a)
+
+#undef START_FILES
+#define START_FILES pre-crt0.o /usr/lib64/crt1.o /usr/lib64/crti.o
+
+#undef LIB_STANDARD
+#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib64/crtn.o