--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/m/ibmrs6000.h	Mon Aug 13 11:28:15 2007 +0200
@@ -0,0 +1,138 @@
+/* R2 AIX machine/system dependent defines
+   Copyright (C) 1988 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 2, 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 XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: FSF 19.31. */
+
+/* The following line tells the configuration script what sort of
+   operating system this machine is likely to run.
+   USUAL-OPSYS="aix3-1"  */
+
+/* Now define a symbol for the cpu type, if your compiler
+   does not define it automatically.  */
+
+#define IBMR2AIX
+
+/* Define CANNOT_DUMP on machines where unexec does not work.
+   Then the function dump-emacs will not be defined
+   and temacs will do (load "loadup") automatically unless told otherwise.  */
+#ifdef USG5_4
+#define CANNOT_DUMP
+#endif
+
+#ifndef UNEXEC
+#define UNEXEC "unexaix.o"
+#endif
+
+/* Define addresses, macros, change some setup for dump */
+
+#define NO_REMAP
+
+#ifndef USG5_4
+#define TEXT_START 0x10000000
+#define TEXT_END 0
+#define DATA_START 0x20000000
+#define DATA_END 0
+#endif
+
+/* The data segment in this machine always starts at address 0x20000000.
+   An address of data cannot be stored correctly in a Lisp object;
+   we always lose the high bits.  We must tell XPNTR to add them back.	*/
+
+#ifndef USG5_4
+#define DATA_SEG_BITS 0x20000000
+#else
+#define DATA_SEG_BITS 0
+#endif
+
+#ifdef CANNOT_DUMP
+/* Define shared memory segment symbols */
+
+#define PURE_SEG_BITS 0x30000000
+
+/* Use shared memory.  */
+/* This is turned off because it does not always work.	See etc/AIX.DUMP.  */
+/* #define HAVE_SHM */
+#define SHMKEY 5305035		/* used for shared memory code segments */
+#endif /* CANNOT_DUMP */
+
+#define N_BADMAG(x) BADMAG(x)
+#define N_TXTOFF(x) A_TEXTPOS(x)
+#define N_SYMOFF(x) A_SYMPOS(x)
+#define A_TEXT_OFFSET(HDR) sizeof(HDR)
+/* #define ADJUST_EXEC_HEADER \
+    unexec_text_start += sizeof(hdr); \
+    unexec_data_start = ohdr.a_dbase
+*/
+#undef ADDR_CORRECT
+#define ADDR_CORRECT(x) ((int)(x))
+
+/* 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.	 */
+
+/* Note: aix3-2.h defines HAVE_ALLOCA; aix3-1.h doesn't.  */
+#ifndef HAVE_ALLOCA
+#define C_ALLOCA
+#define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
+#endif
+
+/* Specify the font for X to use.
+   This used to be Rom14.500; that's nice on the X server shipped with
+   the RS/6000, but it's not available on other servers.  */
+#define X_DEFAULT_FONT "fixed"
+
+/* Here override various assumptions in ymakefile */
+
+#ifdef AIXHFT
+#define OBJECTS_MACHINE "hftctl.o"
+#endif
+
+#ifndef USG5_4
+/* XEmacs change -- commented out: dkeller@vnet.ibm.com */
+/* #define C_SWITCH_MACHINE -D_BSD */
+#endif
+
+#ifdef AIX3_2
+/* -lpthreads seems to be necessary for Xlib in X11R6, and should be harmless
+   on older versions of X where it happens to exist.  */
+#ifdef HAVE_LIBPTHREADS
+#define LIBS_MACHINE "-lrts -lIM -liconv -lpthreads"
+#else
+/* IBM's X11R5 use -lIM and -liconv in AIX 3.2.2.  */
+#define LIBS_MACHINE "-lrts -lIM -liconv"
+#endif
+#else
+#ifdef USG5_4
+#define LIBS_MACHINE
+#else
+#define LIBS_MACHINE "-lIM"
+#endif
+#endif
+
+#define START_FILES
+
+/* Don't try to include sioctl.h or ptem.h.  */
+#undef NEED_SIOCTL
+#undef NEED_PTEM_H
+
+#define ORDINARY_LINK