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diff --git a/src/third_party/js-1.7/jsutil.h b/src/third_party/js-1.7/jsutil.h
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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * PR assertion checker.
+ */
+
+#ifndef jsutil_h___
+#define jsutil_h___
+
+JS_BEGIN_EXTERN_C
+
+#ifdef DEBUG
+
+extern JS_PUBLIC_API(void)
+JS_Assert(const char *s, const char *file, JSIntn ln);
+#define JS_ASSERT(_expr) \
+    ((_expr)?((void)0):JS_Assert(# _expr,__FILE__,__LINE__))
+
+#define JS_NOT_REACHED(_reasonStr) \
+    JS_Assert(_reasonStr,__FILE__,__LINE__)
+
+#else
+
+#define JS_ASSERT(expr) ((void) 0)
+#define JS_NOT_REACHED(reasonStr)
+
+#endif /* defined(DEBUG) */
+
+/*
+ * Compile-time assert. "condition" must be a constant expression.
+ * The macro should be used only once per source line in places where
+ * a "typedef" declaration is allowed.
+ */
+#define JS_STATIC_ASSERT(condition)                                           \
+    JS_STATIC_ASSERT_IMPL(condition, __LINE__)
+#define JS_STATIC_ASSERT_IMPL(condition, line)                                \
+    JS_STATIC_ASSERT_IMPL2(condition, line)
+#define JS_STATIC_ASSERT_IMPL2(condition, line)                               \
+    typedef int js_static_assert_line_##line[(condition) ? 1 : -1]
+
+/*
+** Abort the process in a non-graceful manner. This will cause a core file,
+** call to the debugger or other moral equivalent as well as causing the
+** entire process to stop.
+*/
+extern JS_PUBLIC_API(void) JS_Abort(void);
+
+#ifdef XP_UNIX
+
+typedef struct JSCallsite JSCallsite;
+
+struct JSCallsite {
+    uint32      pc;
+    char        *name;
+    const char  *library;
+    int         offset;
+    JSCallsite  *parent;
+    JSCallsite  *siblings;
+    JSCallsite  *kids;
+    void        *handy;
+};
+
+extern JSCallsite *JS_Backtrace(int skip);
+
+#endif
+
+JS_END_EXTERN_C
+
+#endif /* jsutil_h___ */