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/* System description header file for Darwin (Mac OS X).
Copyright (C) 2001-2012 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
/* Define symbols to identify the version of Unix this is.
Define all the symbols that apply correctly. */
#define BSD4_2
/* BSD4_3 and BSD4_4 are already defined in sys/param.h */
#define BSD_SYSTEM
/* More specific than the above two. We cannot use __APPLE__ as this
may not be defined on non-OSX Darwin, and we cannot define DARWIN
here because Panther and lower CoreFoundation.h uses DARWIN to
distinguish OS X from pure Darwin. */
#define DARWIN_OS
#define PTY_NAME_SPRINTF /* none */
#define PTY_TTY_NAME_SPRINTF /* none */
/* Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
But we don't have to block SIGCHLD because it is blocked in the
implementation of grantpt. */
#define PTY_OPEN \
do \
{ \
int slave; \
if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) \
fd = -1; \
else \
emacs_close (slave); \
} \
while (0)
/* PTYs only work correctly on Darwin 7 or higher. So make the default
for process-connection-type dependent on the kernel version. */
#define MIN_PTY_KERNEL_VERSION '7'
/* Avoid the use of the name init_process (process.c) because it is
also the name of a Mach system call. */
#define init_process emacs_init_process
/* Definitions for how to compile & link. */
#ifdef HAVE_NS
#define SYSTEM_PURESIZE_EXTRA 200000
#endif
#ifdef emacs
#define malloc unexec_malloc
#define realloc unexec_realloc
#define free unexec_free
/* Don't use posix_memalign because it is not compatible with unexmacosx.c. */
#undef HAVE_POSIX_MEMALIGN
#endif
/* The following solves the problem that Emacs hangs when evaluating
(make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile
does not exist. Also, setsid is not allowed in the vfork child's
context as of Darwin 9/Mac OS X 10.5. */
#undef HAVE_WORKING_VFORK
#define vfork fork
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