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, 2001, 2002, 2003, 2004,
   3                  2005, 2006, 2007  Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs; see the file COPYING.  If not, write to
  19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22 /* This file was written by Bill Burton <billb@progress.com>.  Parts were
  23    adapted from m-ptx1-2.h and process.c as distributed with the Emacs 18.57
  24    on the Sequent Public software tape. Other parts were adapted from
  25    usg5-4.h. */
  26
  27 /* Use the SysVr3 file for base configuration even though much is changed.  */
  28 #include "usg5-3.h"
  29
  30 /* Undo these defines because they are incorrect or need to be changed.  */
  31 #undef LIB_X11_LIB
  32 #undef LIBX10_SYSTEM
  33 #undef LIBX11_SYSTEM
  34 #undef USG_SHARED_LIBRARIES
  35
  36 /* <sys/stat.h> *defines* stat as a static function.  If "static"
  37    is blank, then many files will have a public definition for stat.  */
  38 #undef static
  39
  40 /* PTX supports job control.  */
  41 #undef NOMULTIPLEJOBS
  42
  43 /* PTX has System V streams.  */
  44 #define SYSV_STREAMS
  45
  46 /* Leave out -lPW since it conflicts with term.o and because we're not sure
  47    if the alloca found there by autoconf should be trusted on PTX.  */
  48 #define LIB_STANDARD -lc
  49
  50 /* Local define.  If TCP/IP is not installed, comment this out.  */
  51 #define TCPIP_INSTALLED
  52
  53 #ifdef TCPIP_INSTALLED
  54 #define HAVE_SOCKETS
  55 #else
  56 #undef subprocesses
  57 #endif
  58
  59 #ifdef HAVE_X_WINDOWS
  60
  61 #define LIBX11_SYSTEM -lsocket -linet -lnsl
  62 /* This is also defined so that lib-src/profile can link.  */
  63 #define LIBS_SYSTEM -lseq
  64
  65 #else /* ! HAVE_X_WINDOWS */
  66
  67 #ifdef HAVE_SOCKETS
  68 #define LIBS_SYSTEM -lsocket -linet -lnsl -lseq
  69 #else
  70 #define LIBS_SYSTEM -lseq
  71 #endif
  72
  73 #endif /* ! HAVE_X_WINDOWS */
  74
  75 /* No <sioctl.h> */
  76 #define NO_SIOCTL_H
  77
  78 /* If we have X windows, configure should find gettimeofday in -lX11.
  79    Since we emulate gettimeofday below, we really have it anyway.  */
  80 #ifndef HAVE_GETTIMEOFDAY
  81 #define HAVE_GETTIMEOFDAY
  82 #endif
  83
  84 #ifdef emacs
  85 #include <sys/stropts.h>        /* Support for pty's */
  86 #include <sys/conf.h>
  87
  88 /*#define BROKEN_SIGIO*/        /* BROKEN_SIGIO is already defined. PTX
  89                                    has SIGIO, but it's just an alias for
  90                                    SIGPOLL.  */
  91
  92 /* Emulate gettimeofday() except for the time zone information which Emacs
  93    doesn't use anyway.  Get_process_stats() is in -lseq.  */
  94 #include <sys/procstats.h>
  95 #define gettimeofday(tp, tzp) get_process_stats (tp, PS_SELF, 0, 0)
  96
  97 /* Define timezone since it's not in sys/time.h.  Unfortunately, this causes
  98    trouble when building with X since this struct is defined in
  99    <X11/Xos.h>.  */
 100 struct timezone
 101 {
 102   int tz_minuteswest;
 103   int tz_dsttime;
 104 };
 105
 106 /* Unfortunately, this define is not checked in all files including
 107    <X11/Xos.h> so we can't use it.  */
 108 /* #define XOS_NEEDS_TIME_H */
 109
 110 /* In ptx/WINDOWS, this prevents problems with the timezone struct being
 111    redefined in <X11/Xos.h>.  It seems the necessary include files are
 112    included via systime.h so leaving them out here is not a problem.  This
 113    may not work in X11R5 or X11R6.  */
 114 #define __TIMEVAL__
 115
 116 #endif  /* emacs */
 117
 118 /* PTX doesn't have FIONREAD at all. */
 119 #undef INTERRUPT_INPUT
 120 #define BROKEN_FIONREAD
 121
 122 /* We can support this */
 123 #define CLASH_DETECTION
 124
 125 /* PTX has termios */
 126 #define HAVE_TERMIOS
 127 #undef HAVE_TERMIO
 128 #undef BROKEN_TIOCGWINSZ
 129 #undef BROKEN_TIOCGETC
 130
 131 /* It is possible to receive SIGCHLD when there are no children
 132    waiting, because a previous waitsys cleaned up the carcass of child
 133    without clearing the SIGCHLD pending info.  So, use a non-blocking
 134    wait3 instead, which maps to waitpid in SysVr4.  */
 135 /* Not sure if this is used but PTX does support waitpid.  */
 136 /*#define HAVE_WAIT_HEADER*/
 137 /*#define WAITTYPE int*/
 138 #define wait3(status, options, rusage) \
 139   waitpid ((pid_t) -1, (status), (options))
 140 /*#define WRETCODE(w) (w >> 8)*/
 141
 142 /* PTX has pty's but not like System V */
 143 #define HAVE_PTYS
 144 #undef SYSV_PTYS
 145
 146 /* Provide pty support which is defined into process.c:allocate_pty.
 147    Basic ideas for handling getpseudotty were lifted from process.c in
 148    Emacs 18.57 included on the Sequent Public Software tape.  However, this
 149    implementation bears almost no resemblance to the original and does not
 150    require that process.c be patched.  */
 151 #define PTY_ITERATION                                           \
 152   char *mastername, *slavename;                                 \
 153   while (1)
 154
 155 #define PTY_OPEN                                                \
 156   if (failed_count++ >= 5) break;                               \
 157   if ((fd = getpseudotty (&slavename, &mastername)) < 0) {      \
 158     error("Out of ptys.");                                      \
 159     continue;                                                   \
 160   }                                                             \
 161   strcpy (pty_name, slavename);
 162
 163 /* Define these to prevent the default logic in process.c:allocate_pty
 164    from being used.  */
 165 #define PTY_NAME_SPRINTF
 166 #define PTY_TTY_NAME_SPRINTF
 167
 168 /* PTX doesn't seem to have memmove.  */
 169 #define MEMMOVE_MISSING
 170
 171 /* Kenneth Stailey <kstailey@eagle.dol-esa.gov> says this is needed.  */
 172 #define POSIX_SIGNALS
 173
 174 /* arch-tag: 4f5e3abc-643b-413a-bae6-ed212d3af997
 175    (do not change this comment) */