1 files changed, 42 insertions, 0 deletions
diff --git a/lib/wait.h b/lib/wait.h
new file mode 100644
index 0000000..81df938
--- /dev/null
+++ b/lib/wait.h
@@ -0,0 +1,42 @@
+/* wait.h -- POSIX macros for evaluating exit statuses
+   Copyright (C) 1990 Free Software Foundation, Inc.
+
+   This program 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 2, or (at your option)
+   any later version.
+
+   This program 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.  */
+
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/types.h>		/* For pid_t. */
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>	/* for rusage */
+#endif
+#include <sys/wait.h>
+#endif
+#ifndef WIFSTOPPED
+#define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
+#endif
+#ifndef WIFSIGNALED
+#define WIFSIGNALED(w) (((w) & 0xff) != 0x7f && ((w) & 0xff) != 0)
+#endif
+#ifndef WIFEXITED
+#define WIFEXITED(w) (((w) & 0xff) == 0)
+#endif
+#ifndef WCOREDUMP	/* not POSIX, but common and useful */
+#define WCOREDUMP(w) (((w) & 0x80) != 0)
+#endif
+
+#ifndef WSTOPSIG
+#define WSTOPSIG(w) (((w) >> 8) & 0xff)
+#endif
+#ifndef WTERMSIG
+#define WTERMSIG(w) ((w) & 0x7f)
+#endif
+#ifndef WEXITSTATUS
+#define WEXITSTATUS(w) (((w) >> 8) & 0xff)
+#endif