src/s/ptx.h

   1 /* Definitions file for GNU Emacs running on Sequent DYNIX/ptx 1.x/2.x
   2    Copyright (C) 1987, 1990, 1999 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* This file was written by Bill Burton <billb@progress.com>.  Parts were
  22    adapted from m-ptx1-2.h and process.c as distributed with the Emacs 18.57
  23    on the Sequent Public software tape. Other parts were adapted from
  24    usg5-4.h. */
  25
  26 /* Use the SysVr3 file for base configuration even though much is changed.  */
  27 #include "usg5-3.h"
  28
  29 /* Undo these defines because they are incorrect or need to be changed.  */
  30 #undef LIB_X11_LIB
  31 #undef LIBX10_SYSTEM
  32 #undef LIBX11_SYSTEM
  33 #undef USG_SHARED_LIBRARIES
  34
  35 /* <sys/stat.h> *defines* stat as a static function.  If "static"
  36    is blank, then many files will have a public definition for stat.  */
  37 #undef static
  38
  39 /* PTX supports job control.  */
  40 #undef NOMULTIPLEJOBS
  41
  42 /* PTX has System V streams.  */
  43 #define SYSV_STREAMS
  44
  45 /* Leave out -lPW since it conflicts with term.o and because we're not sure
  46    if the alloca found there by autoconf should be trusted on PTX.  */
  47 #define LIB_STANDARD -lc
  48
  49 /* Local define.  If TCP/IP is not installed, comment this out.  */
  50 #define TCPIP_INSTALLED
  51
  52 #ifdef TCPIP_INSTALLED
  53 #define HAVE_SOCKETS
  54 #else
  55 #undef subprocesses
  56 #endif
  57
  58 #ifdef HAVE_X_WINDOWS
  59
  60 #define LIBX11_SYSTEM -lsocket -linet -lnsl
  61 /* This is also defined so that lib-src/profile can link.  */
  62 #define LIBS_SYSTEM -lseq
  63
  64 #else /* ! HAVE_X_WINDOWS */
  65
  66 #ifdef HAVE_SOCKETS
  67 #define LIBS_SYSTEM -lsocket -linet -lnsl -lseq
  68 #else
  69 #define LIBS_SYSTEM -lseq
  70 #endif
  71
  72 #endif /* ! HAVE_X_WINDOWS */
  73
  74 /* No <sioctl.h> */
  75 #define NO_SIOCTL_H
  76
  77 /* If we have X windows, configure should find gettimeofday in -lX11.
  78    Since we emulate gettimeofday below, we really have it anyway.  */
  79 #ifndef HAVE_GETTIMEOFDAY
  80 #define HAVE_GETTIMEOFDAY
  81 #endif
  82
  83 #ifdef emacs
  84 #include <sys/stropts.h>        /* Support for pty's */
  85 #include <sys/conf.h>
  86
  87 /*#define BROKEN_SIGIO*/        /* BROKEN_SIGIO is already defined. PTX
  88                                    has SIGIO, but it's just an alias for
  89                                    SIGPOLL.  */
  90
  91 /* Emulate gettimeofday() except for the time zone information which Emacs
  92    doesn't use anyway.  Get_process_stats() is in -lseq.  */
  93 #include <sys/procstats.h>
  94 #define gettimeofday(tp, tzp) get_process_stats (tp, PS_SELF, 0, 0)
  95
  96 /* Define timezone since it's not in sys/time.h.  Unfortunately, this causes
  97    trouble when building with X since this struct is defined in
  98    <X11/Xos.h>.  */
  99 struct timezone
 100 {
 101   int tz_minuteswest;
 102   int tz_dsttime;
 103 };
 104
 105 /* Unfortunately, this define is not checked in all files including
 106    <X11/Xos.h> so we can't use it.  */
 107 /* #define XOS_NEEDS_TIME_H */
 108
 109 /* In ptx/WINDOWS, this prevents problems with the timezone struct being
 110    redefined in <X11/Xos.h>.  It seems the necessary include files are
 111    included via systime.h so leaving them out here is not a problem.  This
 112    may not work in X11R5 or X11R6.  */
 113 #define __TIMEVAL__
 114
 115 #endif  /* emacs */
 116
 117 /* PTX doesn't have FIONREAD at all. */
 118 #undef INTERRUPT_INPUT
 119 #define BROKEN_FIONREAD
 120
 121 /* We can support this */
 122 #define CLASH_DETECTION
 123
 124 /* PTX has termios */
 125 #define HAVE_TERMIOS
 126 #undef HAVE_TERMIO
 127 #undef BROKEN_TIOCGWINSZ
 128 #undef BROKEN_TIOCGETC
 129
 130 /* It is possible to receive SIGCHLD when there are no children
 131    waiting, because a previous waitsys cleaned up the carcass of child
 132    without clearing the SIGCHLD pending info.  So, use a non-blocking
 133    wait3 instead, which maps to waitpid in SysVr4.  */
 134 /* Not sure if this is used but PTX does support waitpid.  */
 135 /*#define HAVE_WAIT_HEADER*/
 136 /*#define WAITTYPE int*/
 137 #define wait3(status, options, rusage) \
 138   waitpid ((pid_t) -1, (status), (options))
 139 /*#define WRETCODE(w) (w >> 8)*/
 140
 141 /* PTX has pty's but not like System V */
 142 #define HAVE_PTYS
 143 #undef SYSV_PTYS
 144
 145 /* Provide pty support which is defined into process.c:allocate_pty.
 146    Basic ideas for handling getpseudotty were lifted from process.c in
 147    Emacs 18.57 included on the Sequent Public Software tape.  However, this
 148    implementation bears almost no resemblance to the original and does not
 149    require that process.c be patched.  */
 150 #define PTY_ITERATION                                           \
 151   char *mastername, *slavename;                                 \
 152   while (1)
 153
 154 #define PTY_OPEN                                                \
 155   if (failed_count++ >= 5) break;                               \
 156   if ((fd = getpseudotty (&slavename, &mastername)) < 0) {      \
 157     error("Out of ptys.");                                      \
 158     continue;                                                   \
 159   }                                                             \
 160   strcpy (pty_name, slavename);
 161
 162 /* Define these to prevent the default logic in process.c:allocate_pty
 163    from being used.  */
 164 #define PTY_NAME_SPRINTF
 165 #define PTY_TTY_NAME_SPRINTF
 166
 167 /* PTX doesn't seem to have memmove.  */
 168 #define MEMMOVE_MISSING
 169
 170 /* Kenneth Stailey <kstailey@eagle.dol-esa.gov> says this is needed.  */
 171 #define POSIX_SIGNALS