src/s/cygwin.h

   1 /* System description header file for Cygwin.
   2
   3 Copyright (C) 1985-1986, 1992, 1999, 2002-2012 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 3 of the License, or
  10 (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #define PTY_ITERATION           int i; for (i = 0; i < 1; i++) /* ick */
  21 #define PTY_NAME_SPRINTF        /* none */
  22 #define PTY_TTY_NAME_SPRINTF    /* none */
  23 #define PTY_OPEN                                        \
  24   do                                                    \
  25     {                                                   \
  26       int dummy;                                        \
  27       SIGMASKTYPE mask;                                 \
  28       mask = sigblock (sigmask (SIGCHLD));              \
  29       if (-1 == openpty (&fd, &dummy, pty_name, 0, 0))  \
  30         fd = -1;                                        \
  31       sigsetmask (mask);                                \
  32       if (fd >= 0)                                      \
  33         emacs_close (dummy);                            \
  34     }                                                   \
  35   while (0)
  36
  37 /* Used in various places to enable cygwin-specific code changes.  */
  38 #define CYGWIN 1
  39
  40 /* Emacs supplies its own malloc, but glib (part of Gtk+) calls
  41    memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
  42    As malloc is not the Cygwin malloc, the Cygwin memalign always
  43    returns ENOSYS.  A workaround is to set G_SLICE=always-malloc. */
  44 #define G_SLICE_ALWAYS_MALLOC