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+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)shell.h 8.1 (Berkeley) 5/31/93
+ */
+
+/*
+ * The follow should be set to reflect the type of system you have:
+ * JOBS -> 1 if you have Berkeley job control, 0 otherwise.
+ * SYMLINKS -> 1 if your system includes symbolic links, 0 otherwise.
+ * SHORTNAMES -> 1 if your linker cannot handle long names.
+ * define BSD if you are running 4.2 BSD or later.
+ * define SYSV if you are running under System V.
+ * define DEBUG=1 to compile in debugging (set global "debug" to turn on)
+ * define DEBUG=2 to compile in and turn on debugging.
+ *
+ * When debugging is on, debugging info will be written to $HOME/trace and
+ * a quit signal will generate a core dump.
+ */
+
+
+#define JOBS 1
+#define SYMLINKS 1
+#ifndef BSD
+#define BSD 1
+#endif
+#define DEBUG 1
+
+#ifdef __STDC__
+typedef void *pointer;
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#else /* not __STDC__ */
+typedef char *pointer;
+#ifndef NULL
+#define NULL 0
+#endif
+#endif /* not __STDC__ */
+#define STATIC /* empty */
+#define MKINIT /* empty */
+
+#include <sys/cdefs.h>
+
+extern char nullstr[1]; /* null string */
+
+
+#ifdef DEBUG
+#define TRACE(param) trace param
+#else
+#define TRACE(param)
+#endif
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