make-rules/prep-patch.mk
author Norm Jacobs <Norm.Jacobs@Oracle.COM>
Mon, 27 Apr 2015 10:19:50 -0500
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License (the "License").
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# You may not use this file except in compliance with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or http://www.opensolaris.org/os/licensing.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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# Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
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#
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GPATCH =	/usr/gnu/bin/patch
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PATCH_LEVEL ?=	1
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GPATCH_BACKUP =	--backup --version-control=numbered
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GPATCH_FLAGS =	--strip=$(PATCH_LEVEL) $(GPATCH_BACKUP)
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#
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# Rules for patching source that is downloaded and unpacked or pulled from
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# a source repository.  Patches should be named
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# patches/{patch-file-name}.patch{version} where {patch-file-name} is a
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# meaningful name for the patch contents and {version} corresponds to the
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# COMPONENT_NAME{version} of the source to be patched.  Typically, version
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# would be something like "_1", "_2", ...  After all {version} patches have
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# been applied, a final set of patches without a {version} suffix may be
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# applied.
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#
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# PATCH_DIR can be overridden to move patches to a different location
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# PATCH_PATTERN can be overridden to adjust the patch naming scheme that the
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#     build recognizes.
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# EXTRA_PATCHES{version} can be defined in the component Makefile to include
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#     additional patches.
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#
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PATCH_PATTERN ?=	*.patch*
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PATCH_DIR ?=		patches
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# patches specific to parfait builds.
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PARFAIT_PATCH_DIR =	parfait
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PATCHES =	$(shell find $(PATCH_DIR) $(PARFAIT_PATCH_DIR) -type f \
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			 -name '$(PATCH_PATTERN)' 2>/dev/null | \
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				LC_COLLATE=C sort)
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PATHCES +=	$(EXTRA_PATCHES)
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TMP_SUFFIXES = $(patsubst .patch_%,%, $(filter-out .patch,$(suffix $(PATCHES))))
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define patch-rule
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ifeq ($(1),_0)
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PATCH_PATTERN$(1) ?=	%.patch
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PATCHES$(1) = $(filter %.patch,$(PATCHES))
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else
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PATCH_PATTERN$(1) ?=	%.patch$(1)
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PATCHES$(1) = $(filter %.patch$(1),$(PATCHES))
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endif
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ifneq ($$(PATCHES$(1)),)
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PATCH_STAMPS$(1) += $$(PATCHES$(1):$(PATCH_DIR)/%=$$(SOURCE_DIR$(1))/.patched-%)
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# We should unpack the source that we patch before we patch it.
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$$(PATCH_STAMPS$(1)::	$$(UNPACK_STAMP$(1)) unpack
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$$(SOURCE_DIR$(1))/.patched-%:	$(PATCH_DIR)/%
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	$(GPATCH) -d $$(@D) $$(GPATCH_FLAGS) < $$<
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	$(TOUCH) $$(@)
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patch::	$$(PATCH_STAMPS$(1))
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REQUIRED_PACKAGES += text/gnu-patch
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endif
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endef
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#
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# Define the rules required to download any source archives and augment any
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# cleanup macros.
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#
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$(foreach suffix, $(TMP_SUFFIXES), $(eval $(call patch-rule,_$(suffix))))
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$(eval $(call patch-rule,))	# this must be last so we don't drop *.patch_%.