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1 /* Definitions file for GNU Emacs running on the GNU Hurd.
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2 Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
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3
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4 This file is part of GNU Emacs.
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5
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6 GNU Emacs is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 GNU Emacs is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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272
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20
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21 /* Synched up with: FSF 19.31. */
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22
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23 /* Get most of the stuff from bsd4.3 */
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24 #include "bsd4-3.h"
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25
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26 /* For mem-limits.h. */
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27 #define BSD4_2
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28
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29 #undef SYSTEM_TYPE
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30 #define SYSTEM_TYPE "gnu"
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31
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32 /* XXX should getloadavg be in libc? Should we have a libutil?
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33 #define HAVE_GETLOADAVG */
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34
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35 #define LIBS_DEBUG
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36
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37 /* XXX emacs should not expect TAB3 to be defined. */
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38 #define TABDLY OXTABS
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39 #define TAB3 OXTABS
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40
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41 /* GNU needs its own crt0, and libc defines data_start. */
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42 #define ORDINARY_LINK
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43 #define DATA_START ({ extern int data_start; (char *) &data_start; })
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44
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45 /* GNU now always uses the ELF format. */
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163
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46 #define UNEXEC "unexelf.o"
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0
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47
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48 /* Some losing code fails to include this and then assumes
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49 that because it is braindead that O_RDONLY==0. */
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50 #ifndef NOT_C_CODE
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51 #include <fcntl.h>
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52 #endif
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365
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53
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54 #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) && defined(HAVE_PTSNAME)
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55 /* UNIX98 PTYs are available.
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56 Added by Florian Weimer <Florian.Weimer@RUS.Uni-Stuttgart.DE>,
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57 RUS-CERT, University of Stuttgart. Based on Emacs code for DGUX. */
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58
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59 #define PTY_ITERATION for (i = 0; i < 1; i++)
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60 /* no iteration at all */
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61
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62 /* Use getpt() if it's available, because it provides Unix98 PTY
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63 emulation for kernels which doesn't support it natively. */
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64
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65 #ifdef HAVE_GETPT
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66 #define PTY_OPEN \
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67 do { \
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68 fd = getpt(); \
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69 if (fcntl (fd, F_SETFL, O_NDELAY) == -1) \
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70 fatal ("could not set master PTY to non-block mode"); \
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71 } while (0)
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72
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73 #else
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74 /* the master PTY device */
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75 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
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76 #endif
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77
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78 /* This sets the name of the slave side of the PTY. grantpt(3) and
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79 unlockpt(3) may fork a subprocess, so keep sigchld_handler() from
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80 intercepting that death. */
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81
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82 #define PTY_TTY_NAME_SPRINTF \
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83 { \
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84 char *ptsname(), *ptyname; \
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85 \
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367
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86 EMACS_BLOCK_SIGNAL (SIGCHLD); \
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365
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87 if (grantpt(fd) == -1) \
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88 fatal("could not grant slave pty"); \
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89 if (unlockpt(fd) == -1) \
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90 fatal("could not unlock slave pty"); \
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91 if (!(ptyname = ptsname(fd))) \
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92 fatal ("could not enable slave pty"); \
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93 strncpy(pty_name, ptyname, sizeof(pty_name)); \
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94 pty_name[sizeof(pty_name) - 1] = 0; \
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367
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95 EMACS_UNBLOCK_SIGNAL (SIGCHLD); \
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365
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96 }
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97
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98 #endif
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