src/s/usg5-4-2.h

   1 /* s/ file for System V release 4.2.
   2
   3    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   4                  2008, 2009, 2010, 2011  Free Software Foundation, Inc.
   5
   6 This file is part of GNU Emacs.
   7
   8 GNU Emacs is free software: you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation, either version 3 of the License, or
  11 (at your option) any later version.
  12
  13 GNU Emacs is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21
  22 #include "usg5-4.h"
  23
  24 /* fnf@cygnus.com says these exist.  */
  25 #define HAVE_TCATTR
  26 /* #define HAVE_GETWD  (appears to be buggy on SVR4.2) */
  27 #undef HAVE_GETWD
  28
  29 /* Info from fnf@cygnus.com suggests this is appropriate.  */
  30 #define POSIX_SIGNALS
  31
  32 /* We don't need the definition from usg5-3.h with POSIX_SIGNALS.  */
  33 #undef sigsetmask
  34 #undef HAVE_SYSV_SIGPAUSE
  35
  36 /* Motif needs -lgen.  */
  37 #define LIBS_SYSTEM -lsocket -lnsl -lelf -lgen
  38
  39 /* This is the same definition as in usg5-4.h, but with sigblock/sigunblock
  40    rather than sighold/sigrelse, which appear to be BSD4.1 specific and won't
  41    work if POSIX_SIGNALS is defined.  It may also be appropriate for SVR4.x
  42    (x<2) but I'm not sure.   fnf@cygnus.com */
  43 /* This sets the name of the slave side of the PTY.  On SysVr4,
  44    grantpt(3) forks a subprocess, so keep sigchld_handler() from
  45    intercepting that death.  If any child but grantpt's should die
  46    within, it should be caught after sigrelse(2). */
  47
  48 #undef PTY_TTY_NAME_SPRINTF
  49 #define PTY_TTY_NAME_SPRINTF                    \
  50   {                                             \
  51     char *ptsname(), *ptyname;                  \
  52                                                 \
  53     sigblock(sigmask(SIGCLD));                  \
  54     if (grantpt(fd) == -1)                      \
  55       fatal("could not grant slave pty");       \
  56     sigunblock(sigmask(SIGCLD));                \
  57     if (unlockpt(fd) == -1)                     \
  58       fatal("could not unlock slave pty");      \
  59     if (!(ptyname = ptsname(fd)))               \
  60       fatal ("could not enable slave pty");     \
  61     strncpy(pty_name, ptyname, sizeof(pty_name)); \
  62     pty_name[sizeof(pty_name) - 1] = 0;         \
  63   }
  64
  65 /* Use libw.a along with X11R6 Xt.  */
  66 #define NEED_LIBW
  67
  68 /* ryanr@ellingtn.ftc.nrcs.usda.gov (Richard Anthony Ryan) says -lXimp
  69    is needed in UNIX_SV ... 4.2 1.1.2.  */
  70 #define LIB_MOTIF -lXm -lXimp
  71
  72 /* arch-tag: 9bbfcfc1-19be-45a1-9699-af57b87da2c6
  73    (do not change this comment) */