src/s/ptx.h

   1 /* Definitions file for GNU Emacs running on Sequent DYNIX/ptx 1.x/2.x
   2    Copyright (C) 1987, 1990 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /* This file was written by Bill Burton <billb@progress.com>.  Parts were
  21    adapted from m-ptx1-2.h and process.c as distributed with the Emacs 18.57
  22    on the Sequent Public software tape. Other parts were adapted from
  23    usg5-4.h. */
  24
  25 /* Use the SysVr3 file for base configuration even though much is changed.  */
  26 #include "usg5-3.h"
  27
  28 /* Undo these defines because they are incorrect or need to be changed.  */
  29 #undef LIB_X11_LIB
  30 #undef LIBX10_SYSTEM
  31 #undef LIBX11_SYSTEM
  32 #undef USG_SHARED_LIBRARIES
  33
  34 /* <sys/stat.h> *defines* stat as a static function.  If "static"
  35    is blank, then many files will have a public definition for stat.  */
  36 #undef static
  37
  38 /* PTX supports job control.  */
  39 #undef NOMULTIPLEJOBS
  40
  41 /* PTX has System V streams.  */
  42 #define SYSV_STREAMS
  43
  44 /* Leave out -lPW since it conflicts with term.o and because we're not sure
  45    if the alloca found there by autoconf should be trusted on PTX.  */
  46 #define LIB_STANDARD -lc
  47
  48 /* Local define.  If TCP/IP is not installed, comment this out.  */
  49 #define TCPIP_INSTALLED
  50
  51 #ifdef TCPIP_INSTALLED
  52 #define HAVE_SOCKETS
  53 #define HAVE_SELECT
  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 /* PTX has timeval */
  78 #define HAVE_TIMEVAL
  79
  80 /* If we have X windows, configure should find gettimeofday in -lX11.
  81    Since we emulate gettimeofday below, we really have it anyway.  */
  82 #ifndef HAVE_GETTIMEOFDAY
  83 #define HAVE_GETTIMEOFDAY
  84 #endif
  85
  86 #ifdef emacs
  87 #include <sys/stropts.h>        /* Support for pty's */
  88 #include <sys/conf.h>
  89
  90 /*#undef SIGIO*/                /* SIGIO is already undef'd elsewhere. PTX
  91                                    has SIGIO, but it's just an alias for
  92                                    SIGPOLL.  */
  93
  94 /* Emulate gettimeofday() except for the time zone information which Emacs
  95    doesn't use anyway.  Get_process_stats() is in -lseq.  */
  96 #include <sys/procstats.h>
  97 #define gettimeofday(tp, tzp) get_process_stats (tp, PS_SELF, 0, 0)
  98
  99 /* Define timezone since it's not in sys/time.h.  Unfortunately, this causes
 100    trouble when building with X since this struct is defined in
 101    <X11/Xos.h>.  */
 102 struct timezone
 103 {
 104   int tz_minuteswest;
 105   int tz_dsttime;
 106 };
 107
 108 /* Unfortunately, this define is not checked in all files including
 109    <X11/Xos.h> so we can't use it.  */
 110 /* #define XOS_NEEDS_TIME_H */
 111
 112 /* In ptx/WINDOWS, this prevents problems with the timezone struct being
 113    redefined in <X11/Xos.h>.  It seems the necessary include files are
 114    included via systime.h so leaving them out here is not a problem.  This
 115    may not work in X11R5 or X11R6.  */
 116 #define __TIMEVAL__
 117
 118 #endif  /* emacs */
 119
 120 /* PTX doesn't have FIONREAD at all. */
 121 #undef INTERRUPT_INPUT
 122 #define BROKEN_FIONREAD
 123
 124 /* We can support this */
 125 #define CLASH_DETECTION
 126
 127 /* PTX has termios */
 128 #define HAVE_TERMIOS
 129 #undef HAVE_TERMIO
 130 #undef BROKEN_TIOCGWINSZ
 131 #undef BROKEN_TIOCGETC
 132
 133 /* It is possible to receive SIGCHLD when there are no children
 134    waiting, because a previous waitsys cleaned up the carcass of child
 135    without clearing the SIGCHLD pending info.  So, use a non-blocking
 136    wait3 instead, which maps to waitpid in SysVr4.  */
 137 /* Not sure if this is used but PTX does support waitpid.  */
 138 /*#define HAVE_WAIT_HEADER*/
 139 /*#define WAITTYPE int*/
 140 #define wait3(status, options, rusage) \
 141   waitpid ((pid_t) -1, (status), (options))
 142 /*#define WRETCODE(w) (w >> 8)*/
 143
 144 /* PTX has pty's but not like System V */
 145 #define HAVE_PTYS
 146 #undef SYSV_PTYS
 147
 148 /* Provide pty support which is defined into process.c:allocate_pty.
 149    Basic ideas for handling getpseudotty were lifted from process.c in
 150    Emacs 18.57 included on the Sequent Public Software tape.  However, this
 151    implementation bears almost no resemblance to the original and does not
 152    require that process.c be patched.  */
 153 #define PTY_ITERATION                                           \
 154   char *mastername, *slavename;                                 \
 155   while (1)
 156
 157 #define PTY_OPEN                                                \
 158   if (failed_count++ >= 5) break;                               \
 159   if ((fd = getpseudotty (&slavename, &mastername)) < 0) {      \
 160     error("Out of ptys.");                                      \
 161     continue;                                                   \
 162   }                                                             \
 163   strcpy (pty_name, slavename);
 164
 165 /* Define these to prevent the default logic in process.c:allocate_pty
 166    from being used.  */
 167 #define PTY_NAME_SPRINTF
 168 #define PTY_TTY_NAME_SPRINTF
 169
 170 /* PTX doesn't seem to have memmove.  */
 171 #define MEMMOVE_MISSING