--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/m/convex.h	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,173 @@
+/* machine description file for Convex (all models).
+   Copyright (C) 1987, 1994 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="bsd4-3"  */
+
+/* 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.  */
+#ifndef convex  /* The compiler doesn't always do this.  */
+#define convex
+#endif
+
+#ifndef __GNUC__ /* David M. Cooke <dcooke@haven.larc.nasa.gov>
+		    and Ralph Sobek <Ralph.Sobek@cerfacs.fr> agree
+		    must ignore one arg when compiled with convex compiler.  */
+#define CRT0_DUMMIES ignore,
+#else 
+#define CRT0_DUMMIES
+#endif
+
+/* crt0.c should define a symbol `start' and do .globl with a dot.  */
+
+#define DOT_GLOBAL_START
+
+/* 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  */
+
+#define LOAD_AVE_CVT(x) (int) ((x) * 100.0)
+
+/* 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 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
+
+/* Must use the system's termcap.  It does special things.  */
+  
+#define LIBS_TERMCAP -ltermcap
+  
+/* 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 */
+
+/* Addresses on the Convex have the high bit set.  */
+#define DATA_SEG_BITS (1 << (INTBITS-1))
+
+/* Right shift is logical shift.
+   And the usual way of handling such machines, which involves
+   copying the number into sign_extend_temp, does not work
+   for reasons as yet unknown.  */
+
+#define XREALINT(a)  sign_extend_lisp_int (a)
+
+/* Convex uses a special version of unexec.  */
+
+#define UNEXEC unexconvex.o
+
+/* you gotta define 'COFF' for post 6.1 unexec. */
+
+#define COFF
+#define TEXT_START 0x80001000
+
+/* Posix stuff for Convex OS 8.1 and up. */
+
+#define LD_SWITCH_MACHINE \
+    -e__start -L /usr/lib \
+    '-A__iob=___ap$$iob' '-A_use_libc_sema=___ap$$use_libc_sema'
+
+#ifdef _POSIX_SOURCE
+
+/* These symbols have been undefined to advance the state of the art. */
+
+#define S_IFMT _S_IFMT
+#define S_IFDIR _S_IFDIR
+
+#define S_IREAD _S_IREAD
+#define S_IWRITE _S_IWRITE
+#define S_IEXEC _S_IEXEC
+
+#endif
+
+/* Ptys may start below ptyp0; call a routine to hunt for where. */
+
+#undef FIRST_PTY_LETTER
+#define FIRST_PTY_LETTER first_pty_letter()
+
+#if 0
+/*
+ * Force a K&R compilation and libraries with the Convex V 4.0 C compiler
+ */
+#define C_SWITCH_MACHINE -pcc
+#define LIB_STANDARD -lc_old
+#define LIBS_MACHINE -lC2_old
+#define LD_SWITCH_MACHINE -X -NL -fn -Enoposix -A__iob=___ap\$$iob \
+ -A_use_libc_sema=___ap\$$use_libc_sema -L /usr/lib
+#endif
+
+/* Avoid error in xrdb.c - d.m.cooke@larc.nasa.gov.  */
+#define DECLARE_GETPWUID_WITH_UID_T
+
+/* Call getpgrp properly.  */
+#define GETPGRP_NO_ARG
+
+/* Tested for both Convex C and GNUC by d.m.cooke@larc.nasa.gov.  */
+#define LIBS_MACHINE -lC2
+
+/* Avoid error in getloadavg.c.  */
+#define NLIST_NAME_UNION  1
+
+#if 0  /* This is supposed to be an improvement.
+	  It would be good for people to try enabling this code
+	  and report the results.  */
+/* gcc -nostdlib prevents some math symbols from being included.
+   So we have to use -nostartfiles instead. */
+#define LINKER $(CC) -nostartfiles
+
+#define ORDINARY_LINK
+
+#undef LD_SWITCH_MACHINE
+#define LD_SWITCH_MACHINE \
+    -L /usr/lib \
+    '-A__iob=___ap$$iob' '-A_use_libc_sema=___ap$$use_libc_sema'
+#endif