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authorDave Love <fx@gnu.org>2000-07-05 17:00:06 +0000
committerDave Love <fx@gnu.org>2000-07-05 17:00:06 +0000
commitd72c1cadc493353965f5f57d7098a1cb3170aeb4 (patch)
tree68792057cb90387bb5f1990a6bc56c2f39b0b8cc /src/syswait.h
parent66a4b280fb3c740413f1f40a4bcdf08b31bd1b69 (diff)
downloademacs-d72c1cadc493353965f5f57d7098a1cb3170aeb4.tar.gz
Use the autoconf recommended approach. Old code #if'd out in case we
need to revert.
Diffstat (limited to 'src/syswait.h')
-rw-r--r--src/syswait.h64
1 files changed, 63 insertions, 1 deletions
diff --git a/src/syswait.h b/src/syswait.h
index 1889c36a32e..d3edfdf0768 100644
--- a/src/syswait.h
+++ b/src/syswait.h
@@ -1,5 +1,5 @@
/* Define wait system call interface for Emacs.
- Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 2000 Free Software Foundation, Inc.
This file is part of GNU Emacs.
@@ -22,7 +22,65 @@ Boston, MA 02111-1307, USA. */
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
+
+/* Try the approach recommended by autoconf. If this doesn't cause
+ trouble anywhere, remove the original code, which is #if'd out
+ below. */
+
+#if 1
+#undef WAITTYPE
+#define WAITTYPE int
+#define WRETCODE(w) WEXITSTATUS (w)
+
+#include <sys/types.h>
+#if HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+
+#if defined (HPUX) || defined (convex)
+/* HPUX version 7 has broken definitions of these. */
+/* pvogel@convex.com says the convex does too. */
+#undef WTERMSIG
+#undef WSTOPSIG
+#undef WIFSTOPPED
+#undef WIFSIGNALED
+#undef WIFEXITED
+#endif /* HPUX || convex */
+
+#ifndef WEXITSTATUS
+# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
+#endif
+#ifndef WIFEXITED
+# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
+#endif
+#ifndef WIFSTOPPED
+#define WIFSTOPPED(w) ((w&0377) == 0177)
+#endif
+#ifndef WIFSIGNALED
+#define WIFSIGNALED(w) ((w&0377) != 0177 && (w&~0377) == 0)
+#endif
+#ifndef WIFEXITED
+#define WIFEXITED(w) ((w&0377) == 0)
+#endif
+#ifndef WRETCODE
+#define WRETCODE(w) (w >> 8)
+#endif
+#ifndef WSTOPSIG
+#define WSTOPSIG(w) (w >> 8)
+#endif
+#ifndef WTERMSIG
+#define WTERMSIG(w) (w & 0377)
+#endif
+#ifndef WCOREDUMP
+#define WCOREDUMP(w) ((w&0200) != 0)
+#endif
+
+#else /* !1 */
+
#ifndef WAITTYPE
#ifdef WAIT_USE_INT
@@ -88,6 +146,8 @@ Boston, MA 02111-1307, USA. */
#endif /* not WAIT_USE_INT */
#endif /* no WAITTYPE */
+#endif /* 1 */
+
#else /* VMS */
#define WAITTYPE int
@@ -104,3 +164,5 @@ Boston, MA 02111-1307, USA. */
#include "vmsproc.h"
#endif /* VMS */
+
+#endif /* EMACS_SYSWAIT_H */