--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/s/vms.h	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,217 @@
+/* system description header for VMS
+   Copyright (C) 1986 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. */
+
+/*
+ *	Define symbols to identify the version of Unix this is.
+ *	Define all the symbols that apply correctly.
+ */
+
+#ifndef VMS		    /* Decus cpp doesn't define this but VAX C does */
+#define VMS
+#endif /* VMS */
+/* Note that this file is used indirectly via vms4-0.h, or some other
+   such file.  These other files define a symbol VMS4_0, VMS4_2, etc.  */
+
+/* SYSTEM_TYPE should indicate the kind of system you are using.
+ It sets the Lisp variable system-type.  */
+
+#define SYSTEM_TYPE "vax-vms"
+
+/* Letter to use in finding device name of first pty,
+  if system supports pty's.  'a' means it is /dev/ptya0  */
+
+#define FIRST_PTY_LETTER 'a'
+
+/*
+ *	Define HAVE_PTYS if the system supports pty devices.
+ */
+
+/* #define HAVE_PTYS */
+
+/*
+ *	Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
+ *      The 4.2 opendir, etc., library functions.
+ *	(This is autoconfed, but configure probably doesn't
+ *	work on this system.)
+ */
+
+#define NONSYSTEM_DIR_LIBRARY
+
+/* If your system uses COFF (Common Object File Format) then define the
+   preprocessor symbol "COFF". */
+
+/* #define COFF */
+
+/* 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 the maximum record length for print strings, if needed. */
+
+#define MAX_PRINT_CHARS 300
+
+
+/* Here, on a separate page, add any special hacks needed
+   to make Emacs work on this system.  For example,
+   you might define certain system call names that don't
+   exist on your system, or that do different things on
+   your system and must be used only through an encapsulation
+   (Which you should place, by convention, in sysdep.c).  */
+
+/* Do you have the sharable library bug?  If you link with a sharable
+   library that contains psects with the NOSHR attribute and also refer to
+   those psects in your program, the linker give you a private version of
+   the psect which is not related to the version used by the sharable
+   library.  The end result is that your references to variables in that
+   psect have absolutely nothing to do with library references to what is
+   supposed to be the same variable.  If you intend to link with the standard
+   C library (NOT the sharable one) you don't need to define this.  (This
+   is NOT fixed in V4.4...) */
+
+#define SHARABLE_LIB_BUG
+
+/* Partially due to the above mentioned bug and also so that we don't need
+   to require that people have a sharable C library, the default for Emacs
+   is to link with the non-shared library.  If you want to link with the
+   shared library, define this and remake xmakefile and fileio.c. This allows
+   us to ship a guaranteed executable image. */
+
+#define LINK_CRTL_SHARE
+
+/* Define this if you want to read the file SYS$SYSTEM:SYSUAF.DAT for user
+   information.  If you do use this, you must either make SYSUAF.DAT world 
+   readable or install Emacs with SYSPRV.  */
+
+/* #define READ_SYSUAF */
+
+/* On VMS these have a different name */
+
+#define unlink delete
+
+#ifndef _GNUC_
+extern double mth$dmod(double, double);
+#define drem mth$dmod
+#endif
+
+/* Some time routines are missing in the VAX C RTL, or needs some
+   extra bit of code */
+#define tzset sys_tzset
+#define localtime sys_localtime
+#define gmtime sys_gmtime
+
+/* On later versions of VMS these exist in the C run time library, but
+   we are using our own implementations.  Hide their names to avoid
+   linker errors */
+#define rename sys_rename
+#define execvp sys_execvp
+#define system sys_system
+
+#ifndef GNU_MALLOC
+/* Hide these names so that we don't get linker errors */
+#define malloc sys_malloc
+#define free sys_free
+#define realloc sys_realloc
+#define calloc sys_calloc
+
+/* Don't use the standard brk and sbrk */
+#define sbrk sys_sbrk
+#define brk sys_brk
+#endif
+
+/* On VMS we want to avoid reading and writing very large amounts of
+   data at once, so we redefine read and write here. */
+
+#define ENCAPSULATE_READ
+#define ENCAPSULATE_WRITE
+
+/* sys_creat just calls the real creat with additional args of
+   "rfm=var", "rat=cr" to get "normal" VMS files... */
+#define ENCAPSULATE_CREAT
+
+/* fwrite forces an RMS PUT on every call.  This is abysmally slow, so
+   we emulate fwrite with fputc, which forces buffering and is much
+   faster! */
+#define ENCAPSULATE_FWRITE
+
+/* getuid only returns the member number, which is not unique on most VMS
+   systems.  We emulate it with (getgid()<<16 | getuid()). */
+#define getuid sys_getuid
+
+/* If user asks for TERM, check first for EMACS_TERM.  */
+#define getenv sys_getenv
+  
+/* Standard C abort is less useful than it should be. */
+#define abort sys_abort
+
+/* Case conflicts with C library fread. */
+#define Fread F_read
+
+/* Case conflicts with C library srandom. */
+#define Srandom S_random
+
+/* variable length too long... maybe */
+#if 0
+#define do_line_insertion_deletion_costs do_line_insertion_deletion_cost
+#endif
+
+/* Cause initialization of vmsfns.c to be run.  */
+#define SYMS_SYSTEM syms_of_vmsfns ()
+
+/* VAXCRTL access doesn't deal with SYSPRV very well (among other oddities...)
+   Here, we use $CHKPRO to really determine access. */
+#define ENCAPSULATE_ACCESS
+
+#define	PAGESIZE	512
+
+#define	_longjmp	longjmp
+#define	_setjmp		setjmp
+
+globalref char sdata[];
+#define DATA_START (((int) sdata + 511) & ~511)
+#define TEXT_START 512
+
+/* Baud-rate values from tty status are not standard.  */
+
+#define BAUD_CONVERT  \
+{ 0, 50, 75, 110, 134, 150, 300, 600, 1200, 1800, \
+  2000, 2400, 3600, 4800, 7200, 9600, 19200 }
+
+#define SYSTEM_PURESIZE_EXTRA 50000
+
+/* Stdio FILE type has extra indirect on VMS, so must alter this macro.  */
+
+#define PENDING_OUTPUT_COUNT(FILE) ((*(FILE))->_ptr - (*(FILE))->_base)
+
+#define NULL_DEVICE "NLA0:"
+
+#define TERMCAP_NAME "emacs_library:[etc]termcap.dat"
+
+#define EXEC_SUFFIXES ".exe:.com"
+
+/* Case conflict with Xlib XFree () */
+#define xfree emacs_xfree
+
+/* What separator do we use in paths?  */
+#define SEPCHAR ','