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+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license
+# at http://www.opensource.org/licenses/CDDL-1.0
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each file.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+#
+# Copyright (C) 2012, Nexenta Systems, Inc. All rights reserved.
+#
+
+# include guard
+ifeq (,$(__patch_mk))
+
+patchdir = $(CURDIR)/patches
+patches := $(shell cd "$(patchdir)" && ls -1 | sort)
+
+# Try different path levels:
+applied-%-stamp: $(patchdir)/% unpack-stamp
+ cd "$(sourcedir)" && \
+ patch -p1 -t < $< || \
+ patch -p0 -t < $< || \
+ patch -p2 -t < $<
+ touch $@
+
+
+patch-stamp: $(patches:%=applied-%-stamp)
+
+pre-configure:: patch-stamp
+
+__patch_mk := included
+endif
+