--- /dev/null
+/* Machine description file for intel 386.
+ Copyright (C) 1987 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
+Intel 386 (-machine=intel386 or -machine=is386.h)
+
+ The possibilities for -opsystem are: bsd4-2, usg5-2-2, usg5-3,
+ isc2-2, 386-ix, esix, linux, sco3.2v4, and xenix.
+
+ 18.58 should support a wide variety of operating systems.
+ Use isc2-2 for Interactive 386/ix version 2.2.
+ Use 386ix for prior versions.
+ Use esix for Esix.
+ Use linux for Linux.
+ It isn't clear what to do on an SCO system.
+
+ -machine=is386 is used for an Integrated Solutions 386 machine.
+ It may also be correct for Microport systems.
+
+Cubix QBx/386 (-machine=intel386 -opsystem=usg5-3)
+
+ Changes merged in 19.1. Systems before 2/A/0 may fail to compile etags.c
+ due to a compiler bug.
+
+Prime EXL (-machine=intel386 -opsystem=usg5-3)
+
+ Minor changes merged in 19.1.
+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
+
+/* 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. */
+
+/* Mly 16-Jan-96 16:38:32: this is part of a prototype -- same bug present in
+ other m*.h files */
+#define CRT0_DUMMIES int bogus_fp,
+
+/* crt0.c should define a symbol `start' and do .globl with a dot. */
+
+#define DOT_GLOBAL_START
+
+#ifdef XENIX
+/* Data type of load average, as read out of kmem. */
+#define LOAD_AVE_TYPE short
+
+/* Convert that into an integer that is 100 for a load average of 1.0 */
+#define LOAD_AVE_CVT(x) (((double) (x)) * 100.0 / FSCALE)
+
+#define FSCALE 256.0 /* determined by experimentation... */
+#endif
+
+
+#ifdef SOLARIS2
+/* 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 */
+/* This is totally uncalibrated. */
+#define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE))
+
+/* configure thinks solaris X86 has gethostname, but it does not work,
+ so undefine it. */
+#undef HAVE_GETHOSTNAME
+
+#else /* not SOLARIS2 */
+#ifdef USG5_4 /* Older USG systems do not support the load average. */
+/* 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 */
+/* This is totally uncalibrated. */
+
+#define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE))
+#define FSCALE 256.0
+#endif
+#endif /* not SOLARIS2 */
+
+/* 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 */
+
+#ifdef XENIX
+
+/* 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
+
+#define STACK_DIRECTION -1
+
+/* Since cannot purify, use standard Xenix 386 startup code. */
+
+#define START_FILES "/lib/386/Sseg.o pre-crt0.o /lib/386/Scrt0.o"
+
+/* These really use terminfo. */
+
+#define LIBS_TERMCAP "/lib/386/Slibcurses.a /lib/386/Slibtinfo.a /lib/386/Slibx.a"
+
+/* Standard libraries for this machine. Since `-l' doesn't work in `ld'. */
+/* '__fltused' is unresolved w/o Slibcfp.a */
+#define LIB_STANDARD "/lib/386/Slibcfp.a /lib/386/Slibc.a"
+#else /* not XENIX */
+
+#ifdef USG
+
+#define NO_REMAP
+#define TEXT_START 0
+#endif /* USG */
+#endif /* not XENIX */
+
+#ifdef linux
+/* libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared library, */
+/* we cannot get the maximum address for brk */
+#define ULIMIT_BREAK_VALUE (32*1024*1024)
+
+#define SEGMENT_MASK ((SEGMENT_SIZE)-1)
+#endif
+
+#ifdef __GNUC__
+/* GCC's alloca() is semi-broken. See lisp.h.
+
+ This brokenness has been confirmed under both Linux and NetBSD.
+ It may also exist on non-Intel architectures. */
+#define BROKEN_ALLOCA_IN_FUNCTION_CALLS
+#endif
+
+/* XEmacs change: John Hughes <john@AtlanTech.COM> says using vfork
+ under i386-unknown-sysv4.2 makes C-g sometimes cause a SIGSEGV
+ in TTY mode; the problem goes away if you use fork */
+#ifdef USG5_4_2
+#define vfork fork
+#endif
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