#

# 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

#

#

#

# Rules and Macros for generating an IPS package manifest and publishing an

# IPS package to a pkg depot.

#

# To use these rules, include ../make-rules/ips.mk in your Makefile

# and define an "install" target appropriate to building your component.

# Ex:

#

#	install:	$(BUILD_DIR)/build/$(MACH32)/.installed \

#	 		$(BUILD_DIR)/build/$(MACH64)/.installed

#

# This set of rules makes the "publish" target the default target for make(1)

#

PKGDEPEND =	/usr/bin/pkgdepend

PKGFMT =	/usr/bin/pkgfmt

PKGMOGRIFY =	/usr/bin/pkgmogrify

PKGSEND =	/usr/bin/pkgsend

ifeq   ($(strip $(PKGLINT_COMPONENT)),)

PKGLINT =	/usr/bin/pkglint

else

PKGLINT =	${WS_TOOLS}/pkglint

endif

PKGMANGLE =	$(WS_TOOLS)/userland-mangler

# Package headers should all pretty much follow the same format

METADATA_TEMPLATE =		$(WS_TOP)/transforms/manifest-metadata-template

COPYRIGHT_TEMPLATE =		$(WS_TOP)/transforms/copyright-template

# order is important

GENERATE_TRANSFORMS +=		$(WS_TOP)/transforms/generate-cleanup

PKGMOGRIFY_TRANSFORMS +=	$(WS_TOP)/transforms/libtool-drop

COMPARISON_TRANSFORMS +=	$(WS_TOP)/transforms/comparison-cleanup

COMPARISON_TRANSFORMS +=	$(PKGMOGRIFY_TRANSFORMS)

LICENSE_TRANSFORMS =		$(WS_TOP)/transforms/license-changes

# order is important

PUBLISH_TRANSFORMS +=	$(LICENSE_TRANSFORMS)

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/variant-cleanup

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/autopyc

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/defaults

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/actuators

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/devel

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/docs

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/locale

PUBLISH_TRANSFORMS +=	$(PKGMOGRIFY_TRANSFORMS)

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/incorporate

PUBLISH_TRANSFORMS +=	$(WS_TOP)/transforms/publish-cleanup

PKG_MACROS +=		MACH=$(MACH)

PKG_MACROS +=		MACH32=$(MACH32)

PKG_MACROS +=		MACH64=$(MACH64)

PKG_MACROS +=		PUBLISHER=$(PUBLISHER)

PKG_MACROS +=		PUBLISHER_LOCALIZABLE=$(PUBLISHER_LOCALIZABLE)

PKG_MACROS +=		CONSOLIDATION=$(CONSOLIDATION)

PKG_MACROS +=		BUILD_VERSION=$(BUILD_VERSION)

PKG_MACROS +=		SOLARIS_VERSION=$(SOLARIS_VERSION)

PKG_MACROS +=		OS_VERSION=$(OS_VERSION)

PKG_MACROS +=		HUMAN_VERSION=$(HUMAN_VERSION)

PKG_MACROS +=		IPS_COMPONENT_VERSION=$(IPS_COMPONENT_VERSION)

PKG_MACROS +=		COMPONENT_VERSION=$(COMPONENT_VERSION)

PKG_MACROS +=		COMPONENT_PROJECT_URL=$(COMPONENT_PROJECT_URL)

PKG_MACROS +=		COMPONENT_ARCHIVE_URL=$(COMPONENT_ARCHIVE_URL)

PKG_MACROS +=		COMPONENT_HG_URL=$(COMPONENT_HG_URL)

PKG_MACROS +=		COMPONENT_HG_REV=$(COMPONENT_HG_REV)

PKG_MACROS +=		COMPONENT_NAME=$(COMPONENT_NAME)

PKG_MACROS +=		TPNO=$(TPNO)

# Add any TPNO_* Makefile macros to the pkgmogrify arguments.

$(foreach macro, $(filter TPNO_%, $(.VARIABLES)), \

    $(eval PKG_MACROS += $(macro)=$$($(macro))) \

)

PKG_MACROS +=		PYTHON_2.6_ONLY=\#

PKG_MACROS +=		PYTHON_2.7_ONLY=\#

PKG_OPTIONS +=		$(PKG_MACROS:%=-D %)

MANGLED_DIR =	$(PROTO_DIR)/mangled

PKG_PROTO_DIRS += $(MANGLED_DIR) $(PROTO_DIR) $(@D) $(COMPONENT_DIR) $(COMPONENT_SRC)

MANIFEST_BASE =		$(BUILD_DIR)/manifest-$(MACH)

CANONICAL_MANIFESTS =	$(wildcard *.p5m)

# Look for manifests which need to be duplicated for each version of python.

ifeq ($(findstring -PYVER,$(CANONICAL_MANIFESTS)),-PYVER)

UNVERSIONED_MANIFESTS = $(filter-out %GENFRAG.p5m,$(filter-out %-PYVER.p5m,$(CANONICAL_MANIFESTS)))

PY_MANIFESTS = $(filter %-PYVER.p5m,$(CANONICAL_MANIFESTS))

PYV_MANIFESTS = $(foreach v,$(shell echo $(PYTHON_VERSIONS) | tr -d .),$(shell echo $(PY_MANIFESTS) | sed -e 's/-PYVER.p5m/-$(v).p5m/g'))

PYNV_MANIFESTS = $(shell echo $(PY_MANIFESTS) | sed -e 's/-PYVER//')

else

UNVERSIONED_MANIFESTS = $(CANONICAL_MANIFESTS)

endif

# Look for manifests which need to be duplicated for each version of perl.

ifeq ($(findstring -PERLVER,$(UNVERSIONED_MANIFESTS)),-PERLVER)

NOPERL_MANIFESTS = $(filter-out %GENFRAG.p5m,$(filter-out %-PERLVER.p5m,$(UNVERSIONED_MANIFESTS)))

PERL_MANIFESTS = $(filter %-PERLVER.p5m,$(UNVERSIONED_MANIFESTS))

PERLV_MANIFESTS = $(foreach v,$(shell echo $(PERL_VERSIONS) | tr -d .),$(shell echo $(PERL_MANIFESTS) | sed -e 's/-PERLVER.p5m/-$(v).p5m/g'))

PERLNV_MANIFESTS = $(shell echo $(PERL_MANIFESTS) | sed -e 's/-PERLVER//')

else

NOPERL_MANIFESTS = $(UNVERSIONED_MANIFESTS)

endif

# Look for manifests which need to be duplicated for each version of ruby.

# NOPERL_MANIFESTS represents the manifests that are not Python or

# Perl manifests.  Extract the Ruby Manifests from NOPERL_MANIFESTS.

# Any remaining manifests are stored in NONRUBY_MANIFESTS

ifeq ($(findstring -RUBYVER,$(NOPERL_MANIFESTS)),-RUBYVER)

NORUBY_MANIFESTS = $(filter-out %GENFRAG.p5m,\

		   $(filter-out %-RUBYVER.p5m,$(NOPERL_MANIFESTS)))

RUBY_MANIFESTS = $(filter %-RUBYVER.p5m,$(NOPERL_MANIFESTS))

RUBYV_MANIFESTS = $(foreach v,$(shell echo $(RUBY_VERSIONS)),\

                      $(shell echo $(RUBY_MANIFESTS) |\

                      sed -e 's/-RUBYVER.p5m/-$(shell echo $(v) |\

                      cut -d. -f1,2 | tr -d .).p5m/g'))

RUBYNV_MANIFESTS = $(shell echo $(RUBY_MANIFESTS) | sed -e 's/-RUBYVER//')

else

NORUBY_MANIFESTS = $(NOPERL_MANIFESTS)

endif

VERSIONED_MANIFESTS = \

	$(PYV_MANIFESTS) $(PYNV_MANIFESTS) \

	$(PERLV_MANIFESTS) $(PERLNV_MANIFESTS) \

	$(RUBYV_MANIFESTS) $(RUBYNV_MANIFESTS) \

	$(NORUBY_MANIFESTS)

GENERATED =		$(MANIFEST_BASE)-generated

COMBINED =		$(MANIFEST_BASE)-combined

MANIFESTS =		$(VERSIONED_MANIFESTS:%=$(MANIFEST_BASE)-%)

DEPENDED=$(VERSIONED_MANIFESTS:%.p5m=$(MANIFEST_BASE)-%.depend)

RESOLVED=$(VERSIONED_MANIFESTS:%.p5m=$(MANIFEST_BASE)-%.depend.res)

PUBLISHED=$(RESOLVED:%.depend.res=%.published)

COPYRIGHT_FILE ?=	$(COMPONENT_NAME)-$(COMPONENT_VERSION).copyright

IPS_COMPONENT_VERSION ?=	$(COMPONENT_VERSION)

.DEFAULT:		publish

.SECONDARY:

# allow publishing to be overridden, such as when

# a package is for one architecture only.

PUBLISH_STAMP ?= $(BUILD_DIR)/.published-$(MACH)

publish:		build install $(PUBLISH_STAMP)

sample-manifest:	$(GENERATED).p5m

$(GENERATED).p5m:	install

	$(PKGSEND) generate $(PKG_HARDLINKS:%=--target %) $(PROTO_DIR) | \

	$(PKGMOGRIFY) $(PKG_OPTIONS) /dev/fd/0 $(GENERATE_TRANSFORMS) | \

		sed -e '/^$$/d' -e '/^#.*$$/d' | $(PKGFMT) | \

		cat $(METADATA_TEMPLATE) - >$@

# copy the canonical manifest(s) to the build tree

$(MANIFEST_BASE)-%.generate:	%.p5m canonical-manifests

	cat $(METADATA_TEMPLATE) $< >$@

# The text of a transform that will emit a dependency conditional on the

# presence of a particular version of a runtime, which will then draw in the

# runtime-version-specific version of the package we're operating on.  $(1) is

# the name of the runtime package, and $(2) is the version suffix.

mkgeneric = \

	echo "<transform set name=pkg.fmri value=(?:pkg:/)?(.+)-\#\#\#PYV\#\#\#@(.*)" \

		"-> emit depend nodrop=true type=conditional" \

		"predicate=$(1)-$(2) fmri=%<1>-$(2)@%<2>>" >> $@;

# Define and execute a macro that generates a rule to create a manifest for a

# python module specific to a particular version of the python runtime.

# Creates build/manifest-*-modulename-##.p5m file where ## is replaced with

# the version number.

define python-manifest-rule

$(MANIFEST_BASE)-%-$(shell echo $(1) | tr -d .).mogrified: PKG_MACROS += PYTHON_$(1)_ONLY=

$(MANIFEST_BASE)-%-$(shell echo $(1) | tr -d .).p5m: %-PYVER.p5m

	if [ -f $$*-$(shell echo $(1) | tr -d .)GENFRAG.p5m ]; then cat $$*-$(shell echo $(1) | tr -d .)GENFRAG.p5m >> $$@; fi

	$(PKGMOGRIFY) -D PYVER=$(1) -D PYV=$(shell echo $(1) | tr -d .) $$< > $$@

endef

$(foreach ver,$(PYTHON_VERSIONS),$(eval $(call python-manifest-rule,$(ver))))

# A rule to create a helper transform package for python, that will insert the

# appropriate conditional dependencies into a python library's

# runtime-version-generic package to pull in the version-specific bits when the

# corresponding version of python is on the system.

$(BUILD_DIR)/mkgeneric-python: $(WS_TOP)/make-rules/shared-macros.mk

	$(RM) $@

	$(foreach ver,$(shell echo $(PYTHON_VERSIONS) | tr -d .), \

		$(call mkgeneric,runtime/python,$(ver)))

# Build Python version-wrapping manifests from the generic version.

# Creates build/manifest-*-modulename.p5m file.

$(MANIFEST_BASE)-%.p5m: %-PYVER.p5m $(BUILD_DIR)/mkgeneric-python

	$(PKGMOGRIFY) -D PYV=###PYV### $(BUILD_DIR)/mkgeneric-python \

		$(WS_TOP)/transforms/mkgeneric $< > $@

	if [ -f $*-GENFRAG.p5m ]; then cat $*-GENFRAG.p5m >> $@; fi

# Define and execute a macro that generates a rule to create a manifest for a

# perl module specific to a particular version of the perl runtime.

define perl-manifest-rule

$(MANIFEST_BASE)-%-$(shell echo $(1) | tr -d .).p5m: %-PERLVER.p5m

	$(PKGMOGRIFY) -D PERLVER=$(1) -D PLV=$(shell echo $(1) | tr -d .) \

		-D PERL_ARCH=$(call PERL_ARCH_FUNC,$(PERL.$(1))) $$< > $$@

endef

$(foreach ver,$(PERL_VERSIONS),$(eval $(call perl-manifest-rule,$(ver))))

# A rule to create a helper transform package for perl, that will insert the

# appropriate conditional dependencies into a perl library's

# runtime-version-generic package to pull in the version-specific bits when the

# corresponding version of perl is on the system.

$(BUILD_DIR)/mkgeneric-perl: $(WS_TOP)/make-rules/shared-macros.mk

	$(RM) $@

	$(foreach ver,$(shell echo $(PERL_VERSIONS) | tr -d .), \

		$(call mkgeneric,runtime/perl,$(ver)))

# Build Perl version-wrapping manifests from the generic version.

$(MANIFEST_BASE)-%.p5m: %-PERLVER.p5m $(BUILD_DIR)/mkgeneric-perl

	$(PKGMOGRIFY) -D PLV=### $(BUILD_DIR)/mkgeneric-perl \

		$(WS_TOP)/transforms/mkgeneric $< > $@

	if [ -f $*-GENFRAG.p5m ]; then cat $*-GENFRAG.p5m >> $@; fi

# Define and execute a macro that generates a rule to create a manifest for a

# ruby module specific to a particular version of the ruby runtime.

# Creates build/manifest-*-modulename-##.p5m file where ## is replaced with

# the version number.

define ruby-manifest-rule

$(MANIFEST_BASE)-%-$(shell echo $(1) | tr -d .).mogrified: \

	PKG_MACROS += RUBY_VERSION=$(1) RUBY_LIB_VERSION=$(2) \

	    RUBYV=$(subst .,,$(1))

$(MANIFEST_BASE)-%-$(shell echo $(1) | tr -d .).p5m: %-RUBYVER.p5m

	if [ -f $$*-$(shell echo $(1) | tr -d .)GENFRAG.p5m ]; then \

		cat $$*-$(shell echo $(1) | tr -d .)GENFRAG.p5m >> $$@; \

	fi

	$(PKGMOGRIFY) -D RUBY_VERSION=$(1) -D RUBY_LIB_VERSION=$(2) \

	    -D RUBYV=$(shell echo $(1) | tr -d .) $$< > $$@

endef

$(foreach ver,$(RUBY_VERSIONS),\

	$(eval $(call ruby-manifest-rule,$(shell echo $(ver) | \

	    cut -d. -f1,2),$(ver))))

# A rule to create a helper transform package for ruby, that will insert the

# appropriate conditional dependencies into a ruby library's

# runtime-version-generic package to pull in the version-specific bits when the

# corresponding version of ruby is on the system.

$(BUILD_DIR)/mkgeneric-ruby: $(WS_TOP)/make-rules/shared-macros.mk

	$(RM) $@

	$(foreach ver,$(RUBY_VERSIONS),\

		$(call mkgeneric,runtime/ruby,$(shell echo $(ver) | \

		    cut -d. -f1,2 | tr -d .)))

# Build Ruby version-wrapping manifests from the generic version.

# Creates build/manifest-*-modulename.p5m file.

#

# ###PYV### is used here as the mkgeneric() call used to create 

# mkgeneric-ruby uses this value version subsitute key.  We also

# use the same key, ###PYV###, to pick up the required entry

# in mkgeneric when pkgmogrify is invoked

$(MANIFEST_BASE)-%.p5m: %-RUBYVER.p5m $(BUILD_DIR)/mkgeneric-ruby

	$(PKGMOGRIFY) -D RUBYV=###PYV### $(BUILD_DIR)/mkgeneric-ruby \

		$(WS_TOP)/transforms/mkgeneric $< > $@

	if [ -f $*-GENFRAG.p5m ]; then cat $*-GENFRAG.p5m >> $@; fi

# mogrify non-parameterized manifests

$(MANIFEST_BASE)-%.mogrified:	%.p5m $(BUILD_DIR)

	$(PKGMOGRIFY) $(PKG_OPTIONS) $< \

		$(PUBLISH_TRANSFORMS) | \

		sed -e '/^$$/d' -e '/^#.*$$/d' | uniq >$@

# mogrify parameterized manifests

$(MANIFEST_BASE)-%.mogrified:	$(MANIFEST_BASE)-%.p5m $(BUILD_DIR)

	$(PKGMOGRIFY) $(PKG_OPTIONS) $< \

		$(PUBLISH_TRANSFORMS) | \

		sed -e '/^$$/d' -e '/^#.*$$/d' | uniq >$@

# mangle the file contents

$(BUILD_DIR) $(MANGLED_DIR):

	$(MKDIR) $@

PKGMANGLE_OPTIONS = -D $(MANGLED_DIR) $(PKG_PROTO_DIRS:%=-d %)

$(MANIFEST_BASE)-%.mangled:	$(MANIFEST_BASE)-%.mogrified $(MANGLED_DIR)

	$(PKGMANGLE) $(PKGMANGLE_OPTIONS) -m $< >$@

# generate dependencies

PKGDEPEND_GENERATE_OPTIONS = -m $(PKG_PROTO_DIRS:%=-d %)

$(MANIFEST_BASE)-%.depend:	$(MANIFEST_BASE)-%.mangled

	$(PKGDEPEND) generate $(PKGDEPEND_GENERATE_OPTIONS) $< >$@

# These files should contain a list of packages that the component is known to

# depend on.  Using resolve.deps is not required, but significantly speeds up

# the "pkg resolve" step.

EXTDEPFILES ?= $(wildcard $(sort $(addsuffix ../resolve.deps, $(dir $(DEPENDED)))))

# If the package contains no automatically discoverable dependencies, then

# we can speed up resolution by providing a dummy resolve.deps to skip loading

# all the possible packages for resolution.  Unfortunately, pkgdepend does not

# accept a completely empty resolve.deps, so we pass the userland-incorporation

# as a quick, content-free placeholder.

NULLDEPFILE = $(BUILD_DIR)/null-resolve.deps

# This is a target that should only be run by hand, and not something that

# .resolved-$(MACH) should depend on.

sample-resolve.deps:

	@echo "<transform depend type=(require|require-any) -> print %(fmri)>" > rd-trans

	@for i in build/*.depend; do \

		$(PKGMOGRIFY) -O /dev/null $$i rd-trans | tr " " "\n" | sort -u > m1; \

		$(PKGMOGRIFY) -O /dev/null $$i.res rd-trans | tr " " "\n" | sort -u > m2; \

		comm -13 m1 m2; \

	done | sed -e 's/@[^ ]*//g' -e 's,pkg:/,,g' | sort -u > resolve.deps

	@$(RM) rd-trans m1 m2

	@if [[ ! -s resolve.deps ]]; then \

		echo "No computed dependencies found; removing empty resolve.deps."; \

		$(RM) resolve.deps; \

	fi

# resolve the dependencies all at once

$(BUILD_DIR)/.resolved-$(MACH):	$(DEPENDED)

	if [[ "$(EXTDEPFILES)" == "$(NULLDEPFILE)" ]] ; then \

	  echo 'consolidation/userland/userland-incorporation' > $(NULLDEPFILE) ; \

	fi

	$(PKGDEPEND) resolve $(EXTDEPFILES:%=-e %) -m $(DEPENDED)

	$(TOUCH) $@

# lint the manifests all at once

$(BUILD_DIR)/.linted-$(MACH):	$(BUILD_DIR)/.resolved-$(MACH)

	@echo "VALIDATING MANIFEST CONTENT: $(RESOLVED)"

	$(ENV) PYTHONPATH=$(WS_TOOLS)/python PROTO_PATH="$(PKG_PROTO_DIRS)"\

		SOLARIS_VERSION=$(SOLARIS_VERSION)\

		$(PKGLINT) $(CANONICAL_REPO:%=-c $(WS_LINT_CACHE)) \

			-f $(WS_TOOLS)/pkglintrc $(RESOLVED)

	$(TOUCH) $@

lintme: FRC

	@echo "VALIDATING MANIFEST CONTENT: $(RESOLVED)"

	$(ENV) PYTHONPATH=$(WS_TOOLS)/python PROTO_PATH="$(PKG_PROTO_DIRS)"\

		SOLARIS_VERSION=$(SOLARIS_VERSION)\

		$(PKGLINT) $(CANONICAL_REPO:%=-c $(WS_LINT_CACHE)) \

			-f $(WS_TOOLS)/pkglintrc $(RESOLVED)

FRC:

# published

PKGSEND_PUBLISH_OPTIONS = -s $(PKG_REPO) publish --fmri-in-manifest

PKGSEND_PUBLISH_OPTIONS += --no-catalog

PKGSEND_PUBLISH_OPTIONS += $(PKG_PROTO_DIRS:%=-d %)

PKGSEND_PUBLISH_OPTIONS += -T \*.py

$(MANIFEST_BASE)-%.published:	$(MANIFEST_BASE)-%.depend.res $(BUILD_DIR)/.linted-$(MACH)

	$(PKGSEND) $(PKGSEND_PUBLISH_OPTIONS) $<

	$(PKGFMT) <$< >$@

$(BUILD_DIR)/.published-$(MACH):	$(PUBLISHED)

ifndef DISABLE_IPS_CATALOG_AND_INDEX_UPDATES

	$(PKGREPO) refresh -s $(PKG_REPO)

endif

	$(TOUCH) $@

print-package-names:	canonical-manifests

	@cat $(VERSIONED_MANIFESTS) $(WS_TOP)/transforms/print-pkgs | \

		$(PKGMOGRIFY) $(PKG_OPTIONS) /dev/fd/0 | \

 		sed -e '/^$$/d' -e '/^#.*$$/d' | sort -u

print-package-paths:	canonical-manifests

	@cat $(VERSIONED_MANIFESTS) $(WS_TOP)/transforms/print-paths | \

		$(PKGMOGRIFY) $(PKG_OPTIONS) /dev/fd/0 | \

 		sed -e '/^$$/d' -e '/^#.*$$/d' | sort -u

install-packages:	publish

	@if [ $(IS_GLOBAL_ZONE) = 0 -o x$(ROOT) != x ]; then \

	    cat $(VERSIONED_MANIFESTS) $(WS_TOP)/transforms/print-paths | \

		$(PKGMOGRIFY) $(PKG_OPTIONS) /dev/fd/0 | \

 		sed -e '/^$$/d' -e '/^#.*$$/d' -e 's;/;;' | sort -u | \

		(cd $(PROTO_DIR) ; pfexec /bin/cpio -dump $(ROOT)) ; \

	else ; \

	    echo "unsafe to install package(s) automatically" ; \

        fi

$(RESOLVED):	install

canonical-manifests:	$(CANONICAL_MANIFESTS) Makefile $(PATCHES)

ifeq	($(strip $(CANONICAL_MANIFESTS)),)

	# If there were no canonical manifests in the workspace, nothing will

	# be published and we should fail.  A sample manifest can be generated

	# with

	#   $ gmake sample-manifest

	# Once created, it will need to be reviewed, edited, and added to the

	# workspace.

	$(error Missing canonical manifest(s))

endif

# This converts required paths to containing package names for be able to

# properly setup the build environment for a component.

required-pkgs.mk:	Makefile

	@echo "generating $@ from Makefile REQUIRED_* data"

	@pkg search -H -l '<$(DEPENDS:%=% OR) /bin/true>' \

		| sed -e 's/pkg:\/\(.*\)@.*/REQUIRED_PKGS += \1/g' >$@

pre-prep:	required-pkgs.mk

CLEAN_PATHS +=	required-pkgs.mk