/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* 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 <esr@snark.thyrsus.com>. */ /* Use the SysVr3 file for at least base configuration. */ #include "usg5-3.h" #define USG5_4 /* We do have multiple jobs. Handle ^Z. */ #undef NOMULTIPLEJOBS /* Motif needs -lgen. */ #define LIBS_SYSTEM -lsocket -lnsl -lelf -lgen #define ORDINARY_LINK #if 0 #ifdef ORDINARY_LINK #define LIB_STANDARD -lc /usr/ucblib/libucb.a #else #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/ucblib/libucb.a /usr/ccs/lib/crtn.o #endif #else #ifdef ORDINARY_LINK #define LIB_STANDARD #else #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 #endif #endif /* there are no -lg libraries on this system, and no libPW */ #define LIBS_DEBUG /* Undump with ELF */ #undef COFF #define UNEXEC unexelf.o /* <sys/stat.h> *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 <sys/filio.h>. Get <sys/ttold.h> to get struct * tchars. But get <termio.h> first to make sure ttold.h doesn't * interfere. And don't try to use SIGIO yet. */ #ifndef NOT_C_CODE #include <sys/wait.h> #endif #ifdef emacs #ifndef NO_FILIO_H #include <sys/filio.h> #endif #include <termio.h> #include <sys/ttold.h> #include <signal.h> #include <sys/stream.h> #include <sys/stropts.h> #include <sys/termios.h> #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 #undef BROKEN_TIOCGWINSZ #undef BROKEN_TIOCGETC /* 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. */ #undef FIRST_PTY_LETTER #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); /* Undo the SVr3 X11 library definition */ #undef LIB_X11_LIB /* The definition of this in s-usg5-3.h is not needed in 5.4. */ /* liblnsl_s should never be used. The _s suffix implies a shared library, as opposed to a DLL. Share libraries were used in SVR3, and are available only in order to allow SVR3 binaries to run. They should not be linked in to new binaries. -- caraway!pinkas@caraway.intel.com. */ #undef LIBX10_SYSTEM #undef LIBX11_SYSTEM /* 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 <weiand@khof.com> says this is needed for Motif on SINIX. */ #undef LIBS_SYSTEM #define LIBS_SYSTEM -lgen /* arch-tag: 1a0ed909-5faa-434b-b7c3-9d86c63d53a6 (do not change this comment) */