--- /dev/null
+CONTRIB.build/ = $(BUILD/)contrib/
+CONTRIB.download/ = $(SRC/)download/
+CONTRIB.host = $(if $(filter 1,$(BUILD.cross)),$(BUILD.spec))
+
+###############################################################################
+
+##
+## $(1) = module name (uppercase)
+##
+define import.CONTRIB.defs
+ ##
+ ## import gcc/g++ support mainly so we can force contrib choice of
+ ## gcc executable, and debug/optimization flags.
+ ##
+ $$(eval $$(call import.GCC,$(1)))
+
+ ##
+ ## common values useful across targets
+ ##
+ $(1).src/ = $$(SRC/)contrib/$($(1).name)/
+ $(1).build/ = $$(CONTRIB.build/)$($(1).name)/
+ $(1).deps = $$(foreach n,$($(1).prerequisites),$$($$n.INSTALL.target))
+
+ ##
+ ## target: fetch
+ ##
+ $(1).FETCH.tar = $$(CONTRIB.download/)$$(notdir $$($(1).FETCH.url))
+ $(1).FETCH.url = FETCH_IS_UNDEFINED
+ $(1).FETCH.target = $$($(1).FETCH.tar)
+ define $(1).FETCH
+ $$(call FETCH,$$@,$$($(1).FETCH.url))
+ endef
+
+ ##
+ ## target: extract
+ ##
+ $(1).EXTRACT.tarbase = $$(strip $$(foreach x,tar.bz2 tar.gz,$$(patsubst %.$$(x),%,$$(filter %.$$(x),$$(notdir $$($(1).FETCH.url))))))
+ $(1).EXTRACT.dir/ = $$($(1).build/)$$($(1).EXTRACT.tarbase)/
+ $(1).EXTRACT.target = $$($(1).build/).stamp.extract
+ define $(1).EXTRACT
+ $$(RM.exe) -fr $$($(1).EXTRACT.dir/)
+ $$(TAR.exe) xfC $$($(1).FETCH.tar) $$($(1).build/)
+ $$(TOUCH.exe) $$@
+ endef
+
+ ##
+ ## target: patch
+ ##
+ $(1).PATCH.srcs = $$(wildcard \
+ $$($(1).src/)A??-*.patch \
+ $$($(1).src/)P??-$$(BUILD.system)*.patch )
+
+ # extra line feed is required
+ define $(1).PATCH.item
+ $$(PATCH.exe) -t -N -p1 -d $$(1) < $$(2)
+
+ endef
+
+ $(1).PATCH.target = $$($(1).build/).stamp.patch
+ define $(1).PATCH
+ $$(foreach p,$$($(1).PATCH.srcs),$$(call $(1).PATCH.item,$$($(1).EXTRACT.dir/),$$(p)))
+ $$(TOUCH.exe) $$@
+ endef
+
+ ##
+ ## target: configure
+ ##
+ $(1).CONFIGURE.sete = set -e;
+ $(1).CONFIGURE.dir = $$($(1).EXTRACT.dir/)
+ $(1).CONFIGURE.bootstrap =
+ $(1).CONFIGURE.exe = ./configure
+ $(1).CONFIGURE.host = $$(CONTRIB.host)
+ $(1).CONFIGURE.prefix = $$(call fn.ABSOLUTE,$$(CONTRIB.build/))
+ $(1).CONFIGURE.deps = --disable-dependency-tracking
+ $(1).CONFIGURE.shared = --disable-shared
+ $(1).CONFIGURE.static = --enable-static
+ $(1).CONFIGURE.extra =
+
+ $(1).CONFIGURE.args.dir = cd $$(1);
+ $(1).CONFIGURE.args.host = --host=$$(1)
+ $(1).CONFIGURE.args.prefix = --prefix=$$(1)
+
+ $(1).CONFIGURE.args = !sete @dir !bootstrap !env !exe @host @prefix !deps !shared !static !extra
+
+ $(1).CONFIGURE.env.CC = CC=$$($(1).GCC.gcc)
+ $(1).CONFIGURE.env.CFLAGS = CFLAGS="$$(call fn.ARGS,$(1).GCC,*archs *sysroot *minver ?extra)"
+ $(1).CONFIGURE.env.CXX = CXX=$$($(1).GCC.gxx)
+ $(1).CONFIGURE.env.CXXFLAGS = CXXFLAGS="$$(call fn.ARGS,$(1).GCC,*archs *sysroot *minver ?extra)"
+ $(1).CONFIGURE.env.CPPFLAGS = CPPFLAGS="$$(call fn.ARGS,$(1).GCC,*archs *sysroot *minver ?extra)"
+ $(1).CONFIGURE.env.LDFLAGS = LDFLAGS="$$(call fn.ARGS,$(1).GCC,*archs *sysroot *minver)"
+
+ $(1).CONFIGURE.env.args = !CC !CFLAGS !CXX !CXXFLAGS !CPPFLAGS !LDFLAGS
+ $(1).CONFIGURE.env = $$(call fn.ARGS,$(1).CONFIGURE.env,$$($(1).CONFIGURE.env.args))
+
+ $(1).CONFIGURE.target = $$($(1).build/).stamp.configure
+ define $(1).CONFIGURE
+ $$(call fn.ARGS,$(1).CONFIGURE,$$($(1).CONFIGURE.args))
+ $$(TOUCH.exe) $$@
+ endef
+
+ ##
+ ## target: build
+ ##
+ $(1).BUILD.make = $$(MAKE)
+ $(1).BUILD.dir = $$($(1).EXTRACT.dir/)
+ $(1).BUILD.extra =
+ $(1).BUILD.ntargets =
+
+ $(1).BUILD.args = !make @dir !extra !ntargets
+ $(1).BUILD.args.dir = -C $$(1)
+
+ $(1).BUILD.target = $$($(1).build/).stamp.build
+ define $(1).BUILD
+ $$(call fn.ARGS,$(1).BUILD,$$($(1).BUILD.args))
+ $$(TOUCH.exe) $$@
+ endef
+
+ ##
+ ## target: install
+ ##
+ $(1).INSTALL.make = $$(MAKE)
+ $(1).INSTALL.dir = $$($(1).EXTRACT.dir/)
+ $(1).INSTALL.extra =
+ $(1).INSTALL.ntargets =
+
+ $(1).INSTALL.args = !make @dir !extra !ntargets
+ $(1).INSTALL.args.dir = -C $$(1) install
+
+ $(1).INSTALL.mkdirs = $$(CONTRIB.build/)lib/ $$(CONTRIB.build/)include/
+ $(1).INSTALL.target = $$($(1).build/).stamp.install
+ define $(1).INSTALL
+ $$(call fn.ARGS,$(1).INSTALL,$$($(1).INSTALL.args))
+ $$(TOUCH.exe) $$@
+ endef
+
+ ##
+ ## target: uninstall
+ ##
+ $(1).UNINSTALL.make = $$(MAKE)
+ $(1).UNINSTALL.dir = $$($(1).EXTRACT.dir/)
+ $(1).UNINSTALL.extra =
+ $(1).UNINSTALL.ntargets = uninstall
+
+ $(1).UNINSTALL.args = !make @dir !extra !ntargets
+ $(1).UNINSTALL.args.dir = -C $$(1)
+
+ define $(1).UNINSTALL
+ $$(call fn.ARGS,$(1).UNINSTALL,$$($(1).UNINSTALL.args))
+ $$(RM.exe) -f $$($(1).INSTALL.target)
+ endef
+
+ ##
+ ## target: clean
+ ##
+ $(1).CLEAN.make = $$(MAKE)
+ $(1).CLEAN.dir = $$($(1).EXTRACT.dir/)
+ $(1).CLEAN.extra =
+ $(1).CLEAN.ntargets = clean
+
+ $(1).CLEAN.args = !make @dir !extra !ntargets
+ $(1).CLEAN.args.dir = -C $$(1)
+
+ define $(1).CLEAN
+ $$(call fn.ARGS,$(1).CLEAN,$$($(1).CLEAN.args))
+ $$(RM.exe) -f $$($(1).BUILD.target)
+ endef
+
+ ##
+ ## other values used to aid prerequisite dirs and cleanup
+ ##
+ $(1).out += $$($(1).build/)
+ $(1).out += $$($(1).FETCH.target)
+ $(1).out += $$($(1).EXTRACT.target)
+ $(1).out += $$($(1).PATCH.target)
+ $(1).out += $$($(1).CONFIGURE.target)
+ $(1).out += $$($(1).BUILD.target)
+ $(1).out += $$($(1).INSTALL.mkdirs)
+ $(1).out += $$($(1).INSTALL.target)
+
+ BUILD.out += $$($(1).out)
+endef
+
+###############################################################################
+
+##
+## $(1) = module name
+##
+define import.CONTRIB.rules
+
+##
+## target: fetch
+##
+$($(1).name).fetch: $$($(1).FETCH.target)
+
+$$($(1).FETCH.target): | $$(dir $$($(1).FETCH.target))
+ $$($(1).FETCH)
+
+##
+## target: extract
+## must touch dir after extraction because old timestamp is restored via tar.
+##
+$($(1).name).extract: $$($(1).EXTRACT.target)
+
+$$($(1).EXTRACT.target): | $$(dir $$($(1).EXTRACT.target))
+$$($(1).EXTRACT.target): $$($(1).FETCH.target)
+ $$($(1).EXTRACT)
+
+$($(1).name).extract.touch:
+ $$(TOUCH.exe) $$($(1).EXTRACT.target)
+
+$($(1).name).extract.untouch:
+ $$(RM.exe) -f $$($(1).EXTRACT.target)
+
+##
+## target: patch
+##
+$($(1).name).patch: $$($(1).PATCH.target)
+
+$$($(1).PATCH.target): | $$(dir $$($(1).PATCH.target))
+$$($(1).PATCH.target): $$($(1).EXTRACT.target)
+ $$($(1).PATCH)
+
+$($(1).name).patch.touch:
+ $$(TOUCH.exe) $$($(1).PATCH.target)
+
+$($(1).name).patch.untouch:
+ $$(RM.exe) -f $$($(1).PATCH.target)
+
+##
+## target: configure
+##
+$($(1).name).configure: $$($(1).CONFIGURE.target)
+
+$$($(1).CONFIGURE.target): | $$(dir $$($(1).CONFIGURE.target))
+$$($(1).CONFIGURE.target): $$($(1).deps)
+$$($(1).CONFIGURE.target): $$($(1).PATCH.target)
+ $$($(1).CONFIGURE)
+
+$($(1).name).configure.touch:
+ $$(TOUCH.exe) $$($(1).CONFIGURE.target)
+
+$($(1).name).configure.untouch:
+ $$(RM.exe) -f $$($(1).CONFIGURE.target)
+
+##
+## target: build
+##
+$($(1).name).build: $$($(1).BUILD.target)
+
+$$($(1).BUILD.target): | $$(dir $$($(1).BUILD.target))
+$$($(1).BUILD.target): $$($(1).CONFIGURE.target)
+ -$$($(1).CLEAN)
+ +$$($(1).BUILD)
+
+$($(1).name).build.touch:
+ $$(TOUCH.exe) $$($(1).BUILD.target)
+
+$($(1).name).build.untouch:
+ $$(RM.exe) -f $$($(1).BUILD.target)
+
+##
+## target: install
+##
+$($(1).name).install: $$($(1).INSTALL.target)
+
+$$($(1).INSTALL.target): | $$(dir $$($(1).INSTALL.target)) $$($(1).INSTALL.mkdirs)
+$$($(1).INSTALL.target): $$($(1).BUILD.target)
+ $$($(1).INSTALL)
+
+$($(1).name).install.touch:
+ $$(TOUCH.exe) $$($(1).INSTALL.target)
+
+$($(1).name).install.untouch:
+ $$(RM.exe) -f $$($(1).INSTALL.target)
+
+##
+## target: uninstall
+##
+$($(1).name).uninstall:
+ -$$($(1).UNINSTALL)
+
+##
+## target: clean
+##
+$($(1).name).clean:
+ -$$($(1).CLEAN)
+
+##
+## target: xclean
+##
+$($(1).name).xclean: $($(1).name).uninstall
+ $$(RM.exe) -fr $$($(1).build/)
+
+##
+## alias: module name is same as build
+##
+$($(1).name): $($(1).name).build
+
+##
+## participate with global convenience targets
+##
+contrib.fetch: $($(1).name).fetch
+contrib.extract: $($(1).name).extract
+contrib.patch: $($(1).name).patch
+contrib.configure: $($(1).name).configure
+contrib.build: $($(1).name).build
+contrib.install: $($(1).name).install
+contrib.uninstall: $($(1).name).uninstall
+contrib.clean: $($(1).name).clean
+contrib.xclean: $($(1).name).xclean
+
+endef
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