rust/prepare.mk: Don't remove the $(nop) command below!

# Copyright 2014 The Rust Project Developers. See the COPYRIGHT# file at the top-level directory of this distribution and at# http://rust-lang.org/COPYRIGHT.## Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license#<LICENSE-MIT or http://opensource.org/licenses/MIT>, at your# option. This file may not be copied, modified, or distributed# except according to those terms.# Basic support for producing installation images.## The 'prepare' build target copies all release artifacts from the build# directory to some other location, placing all binaries, libraries, and# docs in their final locations relative to each other.## It requires the following variables to be set:## PREPARE_HOST - the host triple# PREPARE_TARGETS - the target triples, space separated# PREPARE_DEST_DIR - the directory to put the imagePREPARE_STAGE=2DEFAULT_PREPARE_DIR_CMD = umask 022 && mkdir -pDEFAULT_PREPARE_BIN_CMD = install -m755DEFAULT_PREPARE_LIB_CMD = install -m644DEFAULT_PREPARE_MAN_CMD = install -m644# Create a directory# $(1) is the directorydefinePREPARE_DIR @$(Q)$(call E, prepare: $(1))$(Q)$(PREPARE_DIR_CMD)$(1)endef# Copy an executable# $(1) is the filename/libname-globdefinePREPARE_BIN @$(call E, prepare: $(PREPARE_DEST_BIN_DIR)/$(1))$(Q)$(PREPARE_BIN_CMD)$(PREPARE_SOURCE_BIN_DIR)/$(1)$(PREPARE_DEST_BIN_DIR)/$(1)endef# Copy a dylib or rlib# $(1) is the filename/libname-glob## XXX: Don't remove the $(nop) command below!# Yeah, that's right, it's voodoo. Something in the way this macro is being expanded# causes it to parse incorrectly. Throwing in that empty command seems to fix the# problem. I'm sorry, just don't remove the $(nop), alright?definePREPARE_LIB$(nop) @$(call E, prepare: $(PREPARE_WORKING_DEST_LIB_DIR)/$(1))$(Q)LIB_NAME="$(notdir$(lastword$(wildcard$(PREPARE_WORKING_SOURCE_LIB_DIR)/$(1))))"; \ MATCHES="$(filter-out%$(notdir$(lastword$(wildcard$(PREPARE_WORKING_SOURCE_LIB_DIR)/$(1)))),\$(wildcard$(PREPARE_WORKING_DEST_LIB_DIR)/$(1)))"; \ if [ -n "$$MATCHES" ]; then \ echo "warning: one or libraries matching Rust library '$(1)'" && \ echo " (other than '$$LIB_NAME' itself) already present" && \ echo " at destination $(PREPARE_WORKING_DEST_LIB_DIR):" && \ echo $$MATCHES ; \ fi$(Q)$(PREPARE_LIB_CMD) `ls -drt1 $(PREPARE_WORKING_SOURCE_LIB_DIR)/$(1) | tail -1` $(PREPARE_WORKING_DEST_LIB_DIR)/endef# Copy a man page# $(1) - source dirdefinePREPARE_MAN @$(call E, prepare: $(PREPARE_DEST_MAN_DIR)/$(1))$(Q)$(PREPARE_MAN_CMD)$(PREPARE_SOURCE_MAN_DIR)/$(1)$(PREPARE_DEST_MAN_DIR)/$(1)endefPREPARE_TOOLS = $(filter-out compiletest, $(TOOLS))# $(1) is tool# $(2) is stage# $(3) is host# $(4) tagdefineDEF_PREPARE_HOST_TOOLprepare-host-tool-$(1)-$(2)-$(3)-$(4): prepare-maybe-clean-$(4) \$$(foreach dep,$$(TOOL_DEPS_$(1)),prepare-host-lib-$$(dep)-$(2)-$(3)-$(4)) \$$(HBIN$(2)_H_$(3))/$(1)$$(X_$(3)) \ prepare-host-dirs-$(4)$$(if$$(findstring$(2), $$(PREPARE_STAGE)),\$$(if$$(findstring$(3), $$(PREPARE_HOST)),\$$(call PREPARE_BIN,$(1)$$(X_$$(PREPARE_HOST))),),)$$(if$$(findstring$(2), $$(PREPARE_STAGE)),\$$(if$$(findstring$(3), $$(PREPARE_HOST)),\$$(call PREPARE_MAN,$(1).1),),)endef# For host libraries only install dylibs, not rlibs since the host libs are only# used to support rustc and rustc uses dynamic linking## $(1) is tool# $(2) is stage# $(3) is host# $(4) tagdefineDEF_PREPARE_HOST_LIBprepare-host-lib-$(1)-$(2)-$(3)-$(4): PREPARE_WORKING_SOURCE_LIB_DIR=$$(PREPARE_SOURCE_LIB_DIR)prepare-host-lib-$(1)-$(2)-$(3)-$(4): PREPARE_WORKING_DEST_LIB_DIR=$$(PREPARE_DEST_LIB_DIR)prepare-host-lib-$(1)-$(2)-$(3)-$(4): prepare-maybe-clean-$(4) \$$(foreach dep,$$(RUST_DEPS_$(1)),prepare-host-lib-$$(dep)-$(2)-$(3)-$(4))\$$(HLIB$(2)_H_$(3))/stamp.$(1) \ prepare-host-dirs-$(4)$$(if$$(findstring$(2), $$(PREPARE_STAGE)),\$$(if$$(findstring$(3), $$(PREPARE_HOST)),\$$(call PREPARE_LIB,$$(call CFG_LIB_GLOB_$$(PREPARE_HOST),$(1))),),)endef# $(1) is stage# $(2) is target# $(3) is host# $(4) tagdefineDEF_PREPARE_TARGET_N# Rebind PREPARE_*_LIB_DIR to point to rustlib, then install the libs for the targetsprepare-target-$(2)-host-$(3)-$(1)-$(4): PREPARE_WORKING_SOURCE_LIB_DIR=$$(PREPARE_SOURCE_LIB_DIR)/rustlib/$(2)/libprepare-target-$(2)-host-$(3)-$(1)-$(4): PREPARE_WORKING_DEST_LIB_DIR=$$(PREPARE_DEST_LIB_DIR)/rustlib/$(2)/libprepare-target-$(2)-host-$(3)-$(1)-$(4): prepare-maybe-clean-$(4) \$$(foreach crate,$$(TARGET_CRATES), \$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(crate)) \$$(if$$(findstring$(2),$$(CFG_HOST)), \$$(foreach crate,$$(HOST_CRATES), \$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(crate)),)# Only install if this host and target combo is being prepared. Also be sure to# *not* install the rlibs for host crates because there's no need to statically# link against most of them. They just produce a large amount of extra size# bloat.$$(if$$(findstring$(1), $$(PREPARE_STAGE)),\$$(if$$(findstring$(2), $$(PREPARE_TARGETS)),\$$(if$$(findstring$(3), $$(PREPARE_HOST)),\$$(call PREPARE_DIR,$$(PREPARE_WORKING_DEST_LIB_DIR))\$$(foreach crate,$$(TARGET_CRATES),\$$(call PREPARE_LIB,$$(call CFG_LIB_GLOB_$(2),$$(crate)))\$$(call PREPARE_LIB,$$(call CFG_RLIB_GLOB,$$(crate))))\$$(if$$(findstring$(2),$$(CFG_HOST)),\$$(foreach crate,$$(HOST_CRATES),\$$(call PREPARE_LIB,$$(call CFG_LIB_GLOB_$(2),$$(crate)))),)\$$(call PREPARE_LIB,libmorestack.a) \$$(call PREPARE_LIB,libcompiler-rt.a),),),)endefdefineDEF_PREPAREprepare-base-$(1): PREPARE_SOURCE_DIR=$$(PREPARE_HOST)/stage$$(PREPARE_STAGE)prepare-base-$(1): PREPARE_SOURCE_BIN_DIR=$$(PREPARE_SOURCE_DIR)/binprepare-base-$(1): PREPARE_SOURCE_LIB_DIR=$$(PREPARE_SOURCE_DIR)/$$(CFG_LIBDIR_RELATIVE)prepare-base-$(1): PREPARE_SOURCE_MAN_DIR=$$(S)/manprepare-base-$(1): PREPARE_DEST_BIN_DIR=$$(PREPARE_DEST_DIR)/binprepare-base-$(1): PREPARE_DEST_LIB_DIR=$$(PREPARE_DEST_DIR)/$$(CFG_LIBDIR_RELATIVE)prepare-base-$(1): PREPARE_DEST_MAN_DIR=$$(PREPARE_DEST_DIR)/share/man/man1prepare-base-$(1): prepare-everything-$(1)prepare-everything-$(1): prepare-host-$(1) prepare-targets-$(1)prepare-host-$(1): prepare-host-tools-$(1)prepare-host-tools-$(1): \$$(foreach tool, $$(PREPARE_TOOLS),\$$(foreach host,$$(CFG_HOST),\ prepare-host-tool-$$(tool)-$$(PREPARE_STAGE)-$$(host)-$(1)))prepare-host-dirs-$(1): prepare-maybe-clean-$(1)$$(call PREPARE_DIR,$$(PREPARE_DEST_BIN_DIR))$$(call PREPARE_DIR,$$(PREPARE_DEST_LIB_DIR))$$(call PREPARE_DIR,$$(PREPARE_DEST_MAN_DIR))$$(foreach tool,$$(PREPARE_TOOLS),\$$(foreach host,$$(CFG_HOST),\$$(eval$$(call DEF_PREPARE_HOST_TOOL,$$(tool),$$(PREPARE_STAGE),$$(host),$(1)))))$$(foreach lib,$$(CRATES),\$$(foreach host,$$(CFG_HOST),\$$(eval$$(call DEF_PREPARE_HOST_LIB,$$(lib),$$(PREPARE_STAGE),$$(host),$(1)))))prepare-targets-$(1):\$$(foreach host,$$(CFG_HOST),\$$(foreach target,$$(CFG_TARGET),\ prepare-target-$$(target)-host-$$(host)-$$(PREPARE_STAGE)-$(1)))$$(foreach host,$$(CFG_HOST),\$$(foreach target,$$(CFG_TARGET), \$$(eval$$(call DEF_PREPARE_TARGET_N,$$(PREPARE_STAGE),$$(target),$$(host),$(1)))))prepare-maybe-clean-$(1):$$(if$$(findstring true,$$(PREPARE_CLEAN)),\ @$$(call E, cleaning destination $$(PREPARE_DEST_DIR)),)$$(if$$(findstring true,$$(PREPARE_CLEAN)),\$$(Q)rm -rf $$(PREPARE_DEST_DIR),)endef