--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/makefiles/altclasses/Makefile	Tue Apr 10 08:22:03 2012 -0700
@@ -0,0 +1,84 @@
+#
+# Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code 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
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+#
+# Makefile for building alternate runtime classes (not used by default)
+#
+
+BUILDDIR = ..
+
+PRODUCT = altclasses
+
+include $(BUILDDIR)/common/Defs.gmk
+
+# Root of alternate class sources
+
+ALTCLASSES_SRCDIR = $(CLOSED_SRC)/share/altclasses
+
+# Alternate runtime classes
+
+ALTRT_JAR_FILE = $(LIBDIR)/alt-rt.jar
+ALTRT_JAR_SOURCE_FILE = $(TEMPDIR)/alt-rt.jarsrclist
+ALTRT_JAR_SOURCES = $(wildcard $(ALTCLASSES_SRCDIR)/java/*/*.java)
+
+# Use a special file suffix for the file that holds the source list
+
+.SUFFIXES: .jarsrclist
+
+# Build rules
+
+all build: 
+	@if [ -d $(ALTCLASSES_SRCDIR) ] ; then \
+	   $(MAKE) $(ALTRT_JAR_FILE); \
+	fi
+
+# Source list file creation
+
+$(ALTRT_JAR_SOURCE_FILE): $(ALTRT_JAR_SOURCES) FRC
+	$(prep-target)
+	$(ECHO) $(ALTRT_JAR_SOURCES) > $@
+
+clean clobber::
+	$(RM) $(ALTRT_JAR_FILE) $(ALTRT_JAR_SOURCE_FILE) 
+	$(RM) -r $(ALTRT_JAR_SOURCE_FILE).classes
+
+include $(BUILDDIR)/common/Classes.gmk
+
+# Pattern rule to turn a source list file into a jar file
+$(LIBDIR)/%.jar : $(TEMPDIR)/%.jarsrclist
+	$(prep-target)
+	$(RM) -r $(<).classes
+	$(MKDIR) -p $(<).classes
+	$(JAVAC_CMD) -implicit:none -d $(<).classes @$<
+	$(BOOT_JAR_CMD) cf $@ -C $(<).classes . $(BOOT_JAR_JFLAGS)
+
+# Force target
+
+FRC:
+
+# Non file targets
+
+.PHONY: all build clean clobber
+