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/* 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 GNU Emacs; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
* 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"
/* NOMULTIPLEJOBS should be defined if your system's shell
does not have "job control" (the ability to stop a program,
run some other program, then continue the first one). */
/* #define NOMULTIPLEJOBS */
/* INTERRUPT_INPUT controls a default for Unix systems.
VMS uses a separate mechanism. */
/* #define INTERRUPT_INPUT */
/* 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 HAVE_SOCKETS if system supports 4.2-compatible sockets. */
/* #define HAVE_SOCKETS */
/*
* Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
* The 4.2 opendir, etc., library functions.
*/
#define NONSYSTEM_DIR_LIBRARY
/* Define this symbol if your system has the functions bcopy, etc. */
/* #define BSTRING */
/* subprocesses should be defined if you want to
have code for asynchronous subprocesses
(as used in M-x compile and M-x shell).
This is generally OS dependent, and not supported
under most USG systems. */
#define subprocesses
/* 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 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 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$SYSTEM:SYSUAF.DAT for user
information. If you do use this, you must either make SYSUAF.DAT world
readable or install Emacs with SYSPRV. */
/* #define READ_SYSUAF */
/* On VMS these have a different name */
#define index strchr
#define rindex strrchr
#define unlink delete
#ifndef _GNUC_
extern double mth$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 read sys_read
#define write sys_write
/* sys_creat just calls the real creat with additional args of
"rfm=var", "rat=cr" to get "normal" VMS files... */
#define creat sys_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 fwrite sys_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 access sys_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 PURESIZE 330000
/* 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 ','
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