| 1 | /* Template for system description header files. |
| 2 | This file describes the parameters that system description files |
| 3 | should define or not. |
| 4 | Copyright (C) 1985, 1986, 1992, 1999, 2002, 2003, 2004, |
| 5 | 2005, 2006 Free Software Foundation, Inc. |
| 6 | |
| 7 | This file is part of GNU Emacs. |
| 8 | |
| 9 | GNU Emacs is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2, or (at your option) |
| 12 | any later version. |
| 13 | |
| 14 | GNU Emacs is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with GNU Emacs; see the file COPYING. If not, write to |
| 21 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 22 | Boston, MA 02110-1301, USA. */ |
| 23 | |
| 24 | /* SYSTEM_TYPE should indicate the kind of system you are using. |
| 25 | It sets the Lisp variable system-type. */ |
| 26 | |
| 27 | #define SYSTEM_TYPE "cygwin" |
| 28 | |
| 29 | /* Emacs can read input using SIGIO and buffering characters itself, |
| 30 | or using CBREAK mode and making C-g cause SIGINT. |
| 31 | The choice is controlled by the variable interrupt_input. |
| 32 | |
| 33 | Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO) |
| 34 | |
| 35 | Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros |
| 36 | to indicate whether or not signal-driven I/O is possible. It uses |
| 37 | INTERRUPT_INPUT to decide whether to use it by default. |
| 38 | |
| 39 | SIGIO can be used only on systems that implement it (4.2 and 4.3). |
| 40 | CBREAK mode has two disadvantages |
| 41 | 1) At least in 4.2, it is impossible to handle the Meta key properly. |
| 42 | I hear that in system V this problem does not exist. |
| 43 | 2) Control-G causes output to be discarded. |
| 44 | I do not know whether this can be fixed in system V. |
| 45 | |
| 46 | Another method of doing input is planned but not implemented. |
| 47 | It would have Emacs fork off a separate process |
| 48 | to read the input and send it to the true Emacs process |
| 49 | through a pipe. */ |
| 50 | |
| 51 | #undef INTERRUPT_INPUT |
| 52 | |
| 53 | /* |
| 54 | * Define HAVE_TERMIOS if the system provides POSIX-style |
| 55 | * functions and macros for terminal control. |
| 56 | * |
| 57 | * Define HAVE_TERMIO if the system provides sysV-style ioctls |
| 58 | * for terminal control. |
| 59 | * |
| 60 | * Do not define both. HAVE_TERMIOS is preferred, if it is |
| 61 | * supported on your system. |
| 62 | */ |
| 63 | |
| 64 | #define HAVE_TERMIOS |
| 65 | |
| 66 | /* |
| 67 | * Define HAVE_PTYS if the system supports pty devices. |
| 68 | */ |
| 69 | |
| 70 | #define HAVE_PTYS |
| 71 | #define PTY_ITERATION for (i = 0; i < 1; i++) /* ick */ |
| 72 | #define PTY_NAME_SPRINTF /* none */ |
| 73 | #define PTY_TTY_NAME_SPRINTF /* none */ |
| 74 | #define PTY_OPEN \ |
| 75 | do \ |
| 76 | { \ |
| 77 | int dummy; \ |
| 78 | SIGMASKTYPE mask; \ |
| 79 | mask = sigblock (sigmask (SIGCHLD)); \ |
| 80 | if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) \ |
| 81 | fd = -1; \ |
| 82 | sigsetmask (mask); \ |
| 83 | emacs_close (dummy); \ |
| 84 | } \ |
| 85 | while (0) |
| 86 | |
| 87 | /* Define this symbol if your system has the functions bcopy, etc. */ |
| 88 | |
| 89 | #define BSTRING |
| 90 | |
| 91 | /* subprocesses should be defined if you want to |
| 92 | have code for asynchronous subprocesses |
| 93 | (as used in M-x compile and M-x shell). |
| 94 | This is generally OS dependent, and not supported |
| 95 | under most USG systems. */ |
| 96 | |
| 97 | #define subprocesses |
| 98 | |
| 99 | /* Define CLASH_DETECTION if you want lock files to be written |
| 100 | so that Emacs can tell instantly when you try to modify |
| 101 | a file that someone else has modified in his Emacs. */ |
| 102 | |
| 103 | #define CLASH_DETECTION |
| 104 | |
| 105 | /* If the system's imake configuration file defines `NeedWidePrototypes' |
| 106 | as `NO', we must define NARROWPROTO manually. Such a define is |
| 107 | generated in the Makefile generated by `xmkmf'. If we don't |
| 108 | define NARROWPROTO, we will see the wrong function prototypes |
| 109 | for X functions taking float or double parameters. */ |
| 110 | |
| 111 | #define NARROWPROTO 1 |
| 112 | |
| 113 | /* used in various places to enable cygwin-specific code changes */ |
| 114 | #define CYGWIN 1 |
| 115 | |
| 116 | #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base) |
| 117 | #define GETPGRP_NO_ARG 1 |
| 118 | #define SYSV_SYSTEM_DIR 1 |
| 119 | #define LIB_STANDARD_LIBSRC |
| 120 | #define UNEXEC unexcw.o |
| 121 | #define POSIX_SIGNALS 1 |
| 122 | /* force the emacs image to start high in memory, so dll relocation |
| 123 | can put things in low memory without causing all sorts of grief for |
| 124 | emacs lisp pointers */ |
| 125 | #define DATA_SEG_BITS 0x20000000 |
| 126 | #define LINKER $(CC) -Wl,--image-base,DATA_SEG_BITS |
| 127 | |
| 128 | /* Use terminfo instead of termcap. Fewer environment variables to |
| 129 | go wrong, more terminal types. */ |
| 130 | #define TERMINFO |
| 131 | |
| 132 | #define HAVE_SOCKETS |
| 133 | /* C-g aborts emacs without this */ |
| 134 | /*#define HAVE_VFORK*/ |
| 135 | /* Xaw3d causes problems -- might have been fixed by NARROWPROTO |
| 136 | above, but I haven't tried it */ |
| 137 | /*#undef HAVE_XAW3D*/ |
| 138 | |
| 139 | /* vfork() interacts badly with setsid(), causing ptys to fail to |
| 140 | change their controlling terminal */ |
| 141 | #define vfork fork |
| 142 | |
| 143 | /* the end */ |
| 144 | |
| 145 | /* arch-tag: 5ae7ba00-83b0-4ab3-806a-3e845779191b |
| 146 | (do not change this comment) */ |