obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 237 insertions, 0 deletions

diff --git a/libjava/classpath/java/lang/Enum.java b/libjava/classpath/java/lang/Enum.java
new file mode 100644
index 000000000..46d28243f
--- /dev/null
+++ b/libjava/classpath/java/lang/Enum.java
@@ -0,0 +1,237 @@
+/* Enum.java - Base class for all enums
+   Copyright (C) 2004, 2005 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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.
+
+GNU Classpath 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.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.lang;
+
+import java.io.Serializable;
+import java.lang.reflect.Field;
+
+/**
+ * This class represents a Java enumeration.  All enumerations are
+ * subclasses of this class.
+ *
+ * @author Tom Tromey (tromey@redhat.com)
+ * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
+ * @since 1.5
+ */
+public abstract class Enum<T extends Enum<T>>
+  implements Comparable<T>, Serializable
+{
+
+  /**
+   * For compatability with Sun's JDK
+   */
+  private static final long serialVersionUID = -4300926546619394005L;
+
+  /**
+   * The name of this enum constant.
+   */
+  final String name;
+
+  /**
+   * The number of this enum constant.  Each constant is given a number
+   * which matches the order in which it was declared, starting with zero.
+   */
+  final int ordinal;
+
+  /**
+   * This constructor is used by the compiler to create enumeration constants.
+   *
+   * @param name the name of the enumeration constant.
+   * @param ordinal the number of the enumeration constant, based on the
+   *                declaration order of the constants and starting from zero.
+   */
+  protected Enum(String name, int ordinal)
+  {
+    this.name = name;
+    this.ordinal = ordinal;
+  }
+
+  /**
+   * Returns an Enum for a enum class given a description string of
+   * the enum constant.
+   *
+   * @exception NullPointerException when etype or s are null.
+   * @exception IllegalArgumentException when there is no value s in
+   * the enum etype.
+   */
+  public static <S extends Enum<S>> S valueOf(Class<S> etype, String s)
+  {
+    if (etype == null || s == null)
+      throw new NullPointerException();
+
+    try
+      {
+        // XXX We should not use getDeclaredField, because it does
+        // an unnecessary security check.
+        Field f = etype.getDeclaredField(s);
+        if (! f.isEnumConstant())
+          throw new IllegalArgumentException(s);
+        Class.setAccessible(f);
+        @SuppressWarnings("unchecked")
+          S val = (S) f.get(null);
+        return val;
+      }
+    catch (NoSuchFieldException exception)
+      {
+        throw new IllegalArgumentException(s);
+      }
+    catch (IllegalAccessException exception)
+      {
+        throw new Error("Unable to access Enum class");
+      }
+  }
+
+  /**
+   * Returns true if this enumeration is equivalent to the supplied object,
+   * <code>o</code>.  Only one instance of an enumeration constant exists,
+   * so the comparison is simply done using <code>==</code>.
+   *
+   * @param o the object to compare to this.
+   * @return true if <code>this == o</code>.
+   */
+  public final boolean equals(Object o)
+  {
+    // Enum constants are singular, so we need only compare `=='.
+    return this == o;
+  }
+
+  /**
+   * Returns the hash code of this constant.  This is simply the ordinal.
+   *
+   * @return the hash code of this enumeration constant.
+   */
+  public final int hashCode()
+  {
+    return ordinal;
+  }
+
+  /**
+   * Returns a textual representation of this enumeration constant.
+   * By default, this is simply the declared name of the constant, but
+   * specific enumeration types may provide an implementation more suited
+   * to the data being stored.
+   *
+   * @return a textual representation of this constant.
+   */
+  public String toString()
+  {
+    return name;
+  }
+
+  /**
+   * Returns an integer which represents the relative ordering of this
+   * enumeration constant.  Enumeration constants are ordered by their
+   * ordinals, which represents their declaration order.  So, comparing
+   * two identical constants yields zero, while one declared prior to
+   * this returns a positive integer and one declared after yields a
+   * negative integer.
+   *
+   * @param e the enumeration constant to compare.
+   * @return a negative integer if <code>e.ordinal < this.ordinal</code>,
+   *         zero if <code>e.ordinal == this.ordinal</code> and a positive
+   *         integer if <code>e.ordinal > this.ordinal</code>.
+   * @throws ClassCastException if <code>e</code> is not an enumeration
+   *                            constant of the same class.
+   */
+  public final int compareTo(T e)
+  {
+    if (getDeclaringClass() != e.getDeclaringClass())
+      throw new ClassCastException();
+    return ordinal - e.ordinal;
+  }
+
+  /**
+   * Cloning of enumeration constants is prevented, to maintain their
+   * singleton status.
+   *
+   * @return the cloned object.
+   * @throws CloneNotSupportedException as enumeration constants can't be
+   *         cloned.
+   */
+  protected final Object clone() throws CloneNotSupportedException
+  {
+    throw new CloneNotSupportedException("can't clone an enum constant");
+  }
+
+  /**
+   * Returns the name of this enumeration constant.
+   *
+   * @return the name of the constant.
+   */
+  public final String name()
+  {
+    return name;
+  }
+
+  /**
+   * Returns the number of this enumeration constant, which represents
+   * the order in which it was originally declared, starting from zero.
+   *
+   * @return the number of this constant.
+   */
+  public final int ordinal()
+  {
+    return ordinal;
+  }
+
+  /**
+   * Returns the type of this enumeration constant.  This is the class
+   * corresponding to the declaration of the enumeration.
+   *
+   * @return the type of this enumeration constant.
+   */
+  public final Class<T> getDeclaringClass()
+  {
+    Class k = getClass();
+    // We might be in an anonymous subclass of the enum class, so go
+    // up one more level.
+    if (k.getSuperclass() != Enum.class)
+      k = k.getSuperclass();
+    return k;
+  }
+
+  /**
+   * Enumerations can not have finalization methods.
+   *
+   * @since 1.6
+   */
+  protected final void finalize()
+  {
+  }
+
+}