/* Define wait system call interface for Emacs.
- Copyright (C) 1993, 1994, 1995, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 2000, 2002, 2003, 2004,
+ 2005 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
/* Define the structure that the wait system call stores.
On many systems, there is a structure defined for this.
#ifndef VMS
-/* Try the approach recommended by autoconf. If this doesn't cause
- trouble anywhere, remove the original code, which is #if'd out
- below. */
+/* This is now really the approach recommended by Autoconf. If this
+ doesn't cause trouble anywhere, remove the original code, which is
+ #if'd out below. */
#if 1
#include <sys/types.h>
#ifdef HAVE_SYS_WAIT_H /* We have sys/wait.h with POSIXoid definitions. */
-
#include <sys/wait.h>
+#endif /* !HAVE_SYS_WAIT_H */
+
#ifndef WCOREDUMP /* not POSIX */
#define WCOREDUMP(status) ((status) & 0x80)
#endif
-
-#else /* !HAVE_SYS_WAIT_H */
-
-/* Note that sys/wait.h may still be included by stdlib.h or something
- according to XPG. */
-
-#undef WEXITSTATUS
+#ifndef WEXITSTATUS
#define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
-#undef WIFEXITED
+#endif
+#ifndef WIFEXITED
#define WIFEXITED(status) (WTERMSIG(status) == 0)
-#undef WIFSTOPPED
+#endif
+#ifndef WIFSTOPPED
#define WIFSTOPPED(status) (((status) & 0xff) == 0x7f)
-#undef WIFSIGNALED
+#endif
+#ifndef WIFSIGNALED
#define WIFSIGNALED(status) (!WIFSTOPPED(status) && !WIFEXITED(status))
-#undef WSTOPSIG
+#endif
+#ifndef WSTOPSIG
#define WSTOPSIG(status) WEXITSTATUS(status)
-#undef WTERMSIG
+#endif
+#ifndef WTERMSIG
#define WTERMSIG(status) ((status) & 0x7f)
-#undef WCOREDUMP
-#define WCOREDUMP(status) ((status) & 0x80)
-#endif /* HAVE_SYS_WAIT_H */
+#endif
#undef WAITTYPE
#define WAITTYPE int
#undef WRETCODE
#define WRETCODE(status) WEXITSTATUS (status)
-#else /* !1 */
+#else /* 0 */
#ifndef WAITTYPE
#define WCOREDUMP(w) ((w&0200) != 0)
#endif
-#else
+#else
#ifdef BSD4_1
#include <wait.h>
#endif /* not WAIT_USE_INT */
#endif /* no WAITTYPE */
-#endif /* 1 */
+#endif /* 0 */
#else /* VMS */
#endif /* VMS */
#endif /* EMACS_SYSWAIT_H */
+
+/* arch-tag: 7e5d9719-ec66-4b6f-89bb-563eea16a899
+ (do not change this comment) */