/* Define wait system call interface for Emacs.
- Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 2000 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, 675 Mass Ave, Cambridge, MA 02139, 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.
But on vanilla-ish USG systems there is not. */
+#ifndef EMACS_SYSWAIT_H
+#define EMACS_SYSWAIT_H
+
#ifndef VMS
+
+/* 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
+#ifndef WEXITSTATUS
+#define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
+#endif
+#ifndef WIFEXITED
+#define WIFEXITED(status) (WTERMSIG(status) == 0)
+#endif
+#ifndef WIFSTOPPED
+#define WIFSTOPPED(status) (((status) & 0xff) == 0x7f)
+#endif
+#ifndef WIFSIGNALED
+#define WIFSIGNALED(status) (!WIFSTOPPED(status) && !WIFEXITED(status))
+#endif
+#ifndef WSTOPSIG
+#define WSTOPSIG(status) WEXITSTATUS(status)
+#endif
+#ifndef WTERMSIG
+#define WTERMSIG(status) ((status) & 0x7f)
+#endif
+
+#undef WAITTYPE
+#define WAITTYPE int
+#undef WRETCODE
+#define WRETCODE(status) WEXITSTATUS (status)
+
+#else /* 0 */
+
#ifndef WAITTYPE
#ifdef WAIT_USE_INT
#else /* not WAIT_USE_INT */
-#if (!defined (BSD) && !defined (UNIPLUS) && !defined (STRIDE) && !(defined (HPUX) && !defined (NOMULTIPLEJOBS)) && !defined (HAVE_WAIT_HEADER)) || defined (LINUX)
+#if (!defined (BSD_SYSTEM) && !defined (UNIPLUS) && !defined (STRIDE) && !(defined (HPUX) && !defined (NOMULTIPLEJOBS)) && !defined (HAVE_WAIT_HEADER))
#define WAITTYPE int
#define WIFSTOPPED(w) ((w&0377) == 0177)
#define WIFSIGNALED(w) ((w&0377) != 0177 && (w&~0377) == 0)
#define WIFEXITED(w) ((w&0377) == 0)
#define WRETCODE(w) (w >> 8)
#define WSTOPSIG(w) (w >> 8)
-#define WTERMSIG(w) (w & 0377)
+#define WTERMSIG(w) (w & 0177)
#ifndef WCOREDUMP
#define WCOREDUMP(w) ((w&0200) != 0)
#endif
-#else
+#else
#ifdef BSD4_1
#include <wait.h>
#ifndef WIFEXITED
#define WIFEXITED(w) (WTERMSIG (w) == 0)
#endif
-#endif /* BSD or UNIPLUS or STRIDE */
+#endif /* BSD_SYSTEM || UNIPLUS || STRIDE || HPUX */
#endif /* not WAIT_USE_INT */
#endif /* no WAITTYPE */
+#endif /* 0 */
+
#else /* VMS */
#define WAITTYPE int
#include "vmsproc.h"
#endif /* VMS */
+
+#endif /* EMACS_SYSWAIT_H */
+
+/* arch-tag: 7e5d9719-ec66-4b6f-89bb-563eea16a899
+ (do not change this comment) */