--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make-rules/prep-download.mk	Mon Apr 27 10:19:50 2015 -0500
@@ -0,0 +1,67 @@
+#
+# 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 usr/src/OPENSOLARIS.LICENSE
+# or http://www.opensolaris.org/os/licensing.
+# 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 and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# 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) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
+#
+
+FETCH =		$(WS_TOOLS)/userland-fetch
+
+#
+# Anything that we download must have a COMPONENT_ARCHIVE_URL{_[0-9]+} macro
+# that tells us where the canonical source for the archive can be found.  The
+# macro for the first archive is typically un-suffixed.  By convention,
+# subsequent archives will include a _[0-9]+ in the macro name.  This allows
+# an abitrary number of archives to be downloaded for a particular component
+# Makefile.  It is also important to note that there is a corresponding
+# COMPONENT_ARCHIVE macro defining a local file name for the archive, and
+# optional COMPONENT_ARCHIVE_HASH and COMPONENT_SIG_URL containing a hash of
+# the file and signature for verification of its contents.
+#
+
+TMP_SUFFIXES = $(subst COMPONENT_ARCHIVE_URL_,, \
+		$(filter COMPONENT_ARCHIVE_URL_%, $(.VARIABLES)))
+
+# Template for download rules.
+define download-rules
+ifdef COMPONENT_ARCHIVE_URL$(1)
+
+ARCHIVES += $$(COMPONENT_ARCHIVE$(1))
+CLOBBER_PATHS += $$(COMPONENT_ARCHIVE$(1))
+
+download::	$$(USERLAND_ARCHIVES)$$(COMPONENT_ARCHIVE$(1))
+
+$$(USERLAND_ARCHIVES)$$(COMPONENT_ARCHIVE$(1)):	$(MAKEFILE_PREREQ)
+	$$(FETCH) --file $$@ \
+		$$(COMPONENT_ARCHIVE_URL$(1):%=--url %) \
+		$$(COMPONENT_ARCHIVE_HASH$(1):%=--hash %) \
+		$$(COMPONENT_SIG_URL$(1):%=--sigurl %)
+	$$(TOUCH) $$@
+
+REQUIRED_PACKAGES += runtime/python-27
+
+endif
+endef
+
+#
+# Define the rules required to download any source archives and augment any
+# cleanup macros.
+#
+$(eval $(call download-rules,))
+$(foreach suffix, $(TMP_SUFFIXES), $(eval $(call download-rules,_$(suffix))))