/* Definitions file for GNU Emacs running on AT&T's System V Release 4 Copyright (C) 1987, 1990, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 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 3 of the License, 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. If not, see . */ /* This file written by James Van Artsdalen of Dell Computer Corporation. * james@bigtex.cactus.org. Subsequently improved for Dell 2.2 by Eric * S. Raymond . */ /* Use the SysVr3 file for at least base configuration. */ #define USG /* System III, System V, etc */ #define USG5 #define USG5_4 /* SYSTEM_TYPE should indicate the kind of system you are using. It sets the Lisp variable system-type. */ #define SYSTEM_TYPE "usg-unix-v" /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */ /* #define INTERRUPT_INPUT */ /* * Define HAVE_TERMIO if the system provides sysV-style ioctls * for terminal control. */ #define HAVE_TERMIO /* * Define HAVE_PTYS if the system supports pty devices. */ /* Some versions of V.3 have this, but not all. #define HAVE_PTYS #define SYSV_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 SYSV_SYSTEM_DIR to use the V.3 getdents/readir * library functions. Almost, but not quite the same as * the 4.2 functions */ #define SYSV_SYSTEM_DIR /* 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 supposed to work now on system V release 2. */ #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 */ /* The file containing the kernel's symbol table is called /unix. */ #define KERNEL_FILE "/unix" /* The symbol in the kernel where the load average is found is named avenrun. */ #define LDAV_SYMBOL "avenrun" /* Define this if system V IPC is available. */ #define HAVE_SYSVIPC /* Special hacks needed to make Emacs run on this system. */ /* * Make the sigsetmask function go away. Don't know what the * ramifications of this are, but doesn't seem possible to * emulate it properly anyway at this point. */ #define sigsetmask(mask) /* Null expansion */ /* setjmp and longjmp can safely replace _setjmp and _longjmp, but they will run slower. */ #define _setjmp setjmp #define _longjmp longjmp /* On USG systems these have different names */ #ifndef HAVE_INDEX #define index strchr #endif /* ! defined (HAVE_INDEX) */ #ifndef HAVE_RINDEX #define rindex strrchr #endif /* ! defined (HAVE_RINDEX) */ /* USG systems tend to put everything declared static into the initialized data area, which becomes pure after dumping Emacs. Foil this. Emacs carefully avoids static vars inside functions. */ #define static /* Compiler bug bites on many systems when default ADDR_CORRECT is used. */ #define ADDR_CORRECT(x) (x) /* Use terminfo instead of termcap. */ #define TERMINFO /* The docs for system V/386 suggest v.3 has sigpause, so let's give it a try. */ #define HAVE_SYSV_SIGPAUSE /* If we're using the System V X port, BSD bstring functions will be handy */ #ifdef HAVE_X_WINDOWS #define BSTRING #endif /* HAVE_X_WINDOWS */ /* Enable support for shared libraries in unexec. */ #define USG_SHARED_LIBRARIES /* On USG systems signal handlers return void */ #define SIGTYPE void #define START_FILES pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o #define LIB_STANDARD -lc /usr/ccs/lib/crtn.o /* there are no -lg libraries on this system, and no libPW */ #define LIBS_DEBUG /* Undump with ELF */ #undef COFF #define UNEXEC unexelf.o /* *defines* stat(2) as a static function. If "static" * is blank, then many files will have a public definition for stat(2). */ #undef static /* Get FIONREAD from . Get to get struct * tchars. But get first to make sure ttold.h doesn't * interfere. And don't try to use SIGIO yet. */ #ifndef NOT_C_CODE #include #endif #ifdef emacs #ifndef NO_FILIO_H #include #endif #include #include #include #include #include #include #define BROKEN_SIGIO #endif /* Some SVr4s don't define NSIG in sys/signal.h for ANSI environments; * instead, there's a system variable _sys_nsig. Unfortunately, we need the * constant to dimension an array. So wire in the appropriate value here. */ #define NSIG_MINIMUM 32 /* We need bss_end from emacs.c for undumping */ #ifndef USG_SHARED_LIBRARIES #define USG_SHARED_LIBRARIES #endif /* We can support this */ #define CLASH_DETECTION #define HAVE_PTYS #define HAVE_TERMIOS /* It is possible to receive SIGCHLD when there are no children waiting, because a previous waitsys(2) cleaned up the carcass of child without clearing the SIGCHLD pending info. So, use a non-blocking wait3 instead, which maps to waitpid(2) in SysVr4. */ #define HAVE_WAIT_HEADER #define WAITTYPE int #define wait3(status, options, rusage) \ waitpid ((pid_t) -1, (status), (options)) #define WRETCODE(w) (w >> 8) /* TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY subprocesses the usual way. But TIOCSIGNAL does work for PTYs, and this is all we need. */ #define TIOCSIGSEND TIOCSIGNAL /* This change means that we don't loop through allocate_pty too many times in the (rare) event of a failure. */ #define FIRST_PTY_LETTER 'z' /* This sets the name of the master side of the PTY. */ #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx"); /* This sets the name of the slave side of the PTY. On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler() from intercepting that death. If any child but grantpt's should die within, it should be caught after sigrelse(2). */ #define PTY_TTY_NAME_SPRINTF \ { \ char *ptsname (), *ptyname; \ \ sighold (SIGCLD); \ if (grantpt (fd) == -1) \ { emacs_close (fd); return -1; } \ sigrelse (SIGCLD); \ if (unlockpt (fd) == -1) \ { emacs_close (fd); return -1; } \ if (!(ptyname = ptsname (fd))) \ { emacs_close (fd); return -1; } \ strncpy (pty_name, ptyname, sizeof (pty_name)); \ pty_name[sizeof (pty_name) - 1] = 0; \ } /* Push various streams modules onto a PTY channel. */ #define SETUP_SLAVE_PTY \ if (ioctl (xforkin, I_PUSH, "ptem") == -1) \ fatal ("ioctl I_PUSH ptem", errno); \ if (ioctl (xforkin, I_PUSH, "ldterm") == -1) \ fatal ("ioctl I_PUSH ldterm", errno); \ if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \ fatal ("ioctl I_PUSH ttcompat", errno); /* Tell x11term.c and keyboard.c we have the system V streams feature. */ #define SYSV_STREAMS /* This definition was suggested for next release. So give it a try. */ #define HAVE_SOCKETS /* Markus Weiand says this is needed for Motif on SINIX. */ #define LIBS_SYSTEM -lgen /* arch-tag: 1a0ed909-5faa-434b-b7c3-9d86c63d53a6 (do not change this comment) */