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diff --git a/src/m/ibm370aix.h b/src/m/ibm370aix.h
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+/* ibm370.h
+   For IBM 3090 type systems running AIX370.
+   Concocted by Scott Schwartz <schwartz@cs.psu.edu>
+   Copyright (C) 1985, 1986 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY.  No author or distributor
+accepts responsibility to anyone for the consequences of using it
+or for whether it serves any particular purpose or works at all,
+unless he says so in writing.  Refer to the GNU Emacs General Public
+License for full details.
+
+Everyone is granted permission to copy, modify and redistribute
+GNU Emacs, but only under the conditions described in the
+GNU Emacs General Public License.   A copy of this license is
+supposed to have been given to you along with GNU Emacs so you
+can know your rights and responsibilities.  It should be in a
+file named COPYING.  Among other things, the copyright notice
+and this notice must be preserved on all copies.  */
+
+
+/* The following three symbols give information on
+ the size of various data types.  */
+
+#define SHORTBITS 16		/* Number of bits in a short */
+
+#define INTBITS 32		/* Number of bits in an int */
+
+#define LONGBITS 32		/* Number of bits in a long */
+
+/* Define BIG_ENDIAN iff lowest-numbered byte in a word
+   is the most significant byte.  */
+
+#define 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 */
+
+/* Define how to take a char and sign-extend into an int.
+   On machines where char is signed, this is a no-op.  */
+
+#define SIGN_EXTEND_CHAR(c) (((c) & 0x80) ? ((c) | 0xffffff80) : (c))
+
+/* 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 */
+/* high-c defines _AIX370 */
+
+/* Use type int rather than a union, to represent Lisp_Object */
+/* This is desirable for most machines.  */
+
+#define NO_UNION_TYPE
+
+/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
+   the 24-bit bit field into an int.  In other words, if bit fields
+   are always unsigned.
+
+   If you use NO_UNION_TYPE, this flag does not matter.  */
+
+#define EXPLICIT_SIGN_EXTEND
+
+/* Data type of load average, as read out of kmem.  */
+
+#define LOAD_AVE_TYPE double
+
+/* Convert that into an integer that is 100 for a load average of 1.0  */
+
+/* XXX */
+#define LOAD_AVE_CVT(x) (int)(((double) (x)) * 100.0 / 1.0)
+
+/* 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.  */
+ 
+#define CANNOT_DUMP 
+#define CANNOT_UNEXEC
+
+/* Define VIRT_ADDR_VARIES if the virtual addresses of
+   pure and impure space as loaded can vary, and even their
+   relative order cannot be relied on.
+
+   Otherwise Emacs assumes that text space precedes data space,
+   numerically.  */
+
+#define VIRT_ADDR_VARIES
+
+/* 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 C_ALLOCA */
+#define HAVE_ALLOCA
+
+#ifndef NO_SHORTNAMES
+#include <alloca.h>
+#include <setjmp.h>
+#endif
+
+/* Define NO_REMAP if memory segmentation makes it not work well
+   to change the boundary between the text section and data section
+   when Emacs is dumped.  If you define this, the preloaded Lisp
+   code will not be sharable; but that's better than failing completely.  */
+
+#define NO_REMAP
+
+/* Don't try to include sioctl.h.  */
+#undef NEED_SIOCTL
+/* That probably means we shouldn't try ptem.h either.  */
+#undef NEED_PTEM_H
+
+/* Note we do not define IBMAIX, since the `hft' features
+   don't exist on this machine.  */
+
+#define LIBS_DEBUG -lg
+#ifndef LD_SWITCH_SYSTEM
+#define LD_SWITCH_SYSTEM
+#endif
+
+#define LIBS_SYSTEM -lbsd
+
+/* The symbol in the kernel where the load average is found
+   is named _avenrun.  */
+
+#undef LDAV_SYMBOL
+#define LDAV_SYMBOL "_avenrun"
+
+/* define MAIL_USE_FLOCK if the mailer uses flock
+   to interlock access to /usr/spool/mail/$USER.
+   The alternative is that a lock file named
+   /usr/spool/mail/$USER.lock.  */
+#define MAIL_USE_FLOCK
+
+/* Define CLASH_DETECTION if you want lock files to be written
+   so that Emacs can tell instantly when you try to modify
+   a file that someone else has modified in his Emacs.  */
+#define CLASH_DETECTION
+
+#define BSTRING
+
+/* First pty name is /dev/ptyp0.  */
+#define FIRST_PTY_LETTER 'p'
+
+/*
+ *	Define HAVE_TIMEVAL if the system supports the BSD style clock values.
+ *	Look in <sys/time.h> for a timeval structure.
+ */
+#define HAVE_TIMEVAL
+ 
+/*
+ *	Define HAVE_SELECT if the system supports the `select' system call.
+ */
+#define HAVE_SELECT
+
+/*
+ *	Define HAVE_PTYS if the system supports pty devices.
+ */
+#define HAVE_PTYS
+
+/* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
+
+#define HAVE_SOCKETS