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/* machine description file for ibm ps/2 aix386.
   Copyright (C) 1989 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="note"

NOTE-START
  Use -opsystem=usg5-3 on AIX 1.2.
  -opsystem=usg5-2-2 should work on either AIX 1.1 or 1.2, but may not
  work with certain new X window managers, and may be suboptimal.
NOTE-END */

/* 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 */

#define INTEL386
#define aix386

#define IBMAIX

/* crt0.c, if it is used, should use the i386-bsd style of entry.
   with no extra dummy args.  On USG and XENIX,
   NO_REMAP says this isn't used. */

#define CRT0_DUMMIES bogus_fp,

/* crt0.c should define a symbol `start' and do .globl with a dot.  */

#define DOT_GLOBAL_START

/* USG systems do not actually support the load average,
so disable it for them.  */

/* 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 addresses, macros, change some setup for dump */

#define NO_REMAP

#ifdef USG5_3
#define TEXT_START 0x00000000
#else
#define TEXT_START 0x00400000
#define TEXT_END 0
#define DATA_START 0x00800000
#define DATA_END 0

#endif

#if 0 /* I refuse to promulgate a recommendation that would make
         users unable to debug - RMS.  */
/* delete the following line to foil optimization, enable debugging */
#define C_DEBUG_SWITCH "-O"
#endif

/* AIX utimes allegedly causes SIGSEGV.  */
#undef HAVE_UTIMES /* override configuration decision */

/* Data type of load average, as read out of kmem.  */

#define LOAD_AVE_TYPE long	/* For AIX (sysV) */

/* Convert that into an integer that is 100 for a load average of 1.0  */

#define LOAD_AVE_CVT(x) (int) (((double) (x)/65535.0) * 100.0)

/* This page was added in June 1990.  It may be incorrect for some versions
   of aix, so delete it if it causes trouble.  */

/* AIX386 has BSD4.3 PTYs */

#define HAVE_PTYS

/* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */

/* Specify the font for X to use.  */

#define X_DEFAULT_FONT "8x13"


/* sioctl.h should not be included, says bytheway@cs.utah.edu.  */
#undef NEED_SIOCTL
/* I'm guessing that that means it doesn't want ptem.h either.  */
#undef NEED_PTEM_H

/* Here override various assumptions in ymakefile */

/* 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.  */

#ifdef __GNUC__
#define HAVE_ALLOCA
#define alloca(n) __builtin_alloca(n)
#if __GNUC__ < 2
#define LIB_STANDARD "/usr/local/lib/gcc-gnulib -lbsd -lrts -lc "
#endif
/* -g fails to work, so it is omitted.  */
/* tranle says that -fstrength-reduce does not help.  */
#define C_DEBUG_SWITCH
#else
#define C_ALLOCA
#define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
#define LIBS_MACHINE "-lbsd -lrts"
#endif

#define OBJECTS_MACHINE "hftctl.o"
#define LD_SWITCH_MACHINE "-T0x00400000 -K -e start"
#define LIBS_DEBUG		/* no -lg on aix ps/2 */

#ifdef USG5_3
#define XICCC
#undef LD_SWITCH_MACHINE
#define LD_SWITCH_MACHINE "-T0x0 -K -e start"

/* Things defined in s-usg5-3.h that need to be overridden.  */
#undef BROKEN_TIOCGETC
#undef BROKEN_TIOCGWINSZ
#undef LIBX10_SYSTEM
#undef LIBX11_SYSTEM
#undef LIB_X11_LIB
#endif

/* Shared libraries are supported in a patch release of ps/2 1.2.1.
   If the system has them, the user can turn them on, and this code
   will make them work.  */
#define USG_SHARED_LIBRARIES /* Assume that by 19's release everyone has this.  */

#ifdef USG_SHARED_LIBRARIES
#define ORDINARY_LINK
#undef LIB_STANDARD
#undef LD_SWITCH_MACHINE
#if __GNUC__ > 1
#define LD_SWITCH_MACHINE "-shlib"
#endif
#endif