From 3c7ab9286a66e4210a23011ceaf8860fabf51696 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Wed, 13 Feb 2013 09:58:25 +0100
Subject: [PATCH] Use separate root directories for different profiles

---
 Makefile         |   7 +-
 builder/Makefile |  42 ++++---
 builder/rules.mk | 307 -----------------------------------------------
 3 files changed, 29 insertions(+), 327 deletions(-)
 delete mode 100644 builder/rules.mk

diff --git a/Makefile b/Makefile
index cd8d08a2..6a046c09 100644
--- a/Makefile
+++ b/Makefile
@@ -16,13 +16,12 @@ null :=
 space := ${null} ${null}
 ${space} := ${space}
 
-prepared_stamp := $(GLUON_BUILDDIR)/prepared
+prepared_stamp := $(GLUON_BUILDDIR)/$(BOARD)/prepared
 
 define GluonProfile
 image/$(1): $(prepared_stamp)
 	$(MAKE) -C $(GLUON_BUILDERDIR) image \
 		PROFILE="$(1)" \
-		PACKAGE_DIR="$(GLUON_OPENWRTDIR)/bin/$(BOARD)/packages" \
 		$(if $(2),PACKAGES="$(2)")
 
 PROFILES += $(1)
@@ -32,8 +31,8 @@ endef
 include profiles.mk
 
 prepare:
-	mkdir -p $(GLUON_IMAGEDIR) $(GLUON_BUILDDIR)
-	echo 'src packages file:../openwrt/bin/$(BOARD)/packages' > $(GLUON_BUILDDIR)/opkg-$(BOARD).conf
+	mkdir -p $(GLUON_IMAGEDIR) $(GLUON_BUILDDIR)/$(BOARD)
+	echo 'src packages file:../openwrt/bin/$(BOARD)/packages' > $(GLUON_BUILDDIR)/$(BOARD)/opkg.conf
 
 	$(LN_S) $(GLUON_BUILDERDIR)/feeds.conf $(GLUON_OPENWRTDIR)/feeds.conf
 	$(GLUON_OPENWRTDIR)/scripts/feeds uninstall -a
diff --git a/builder/Makefile b/builder/Makefile
index f3c48a0d..e680b887 100644
--- a/builder/Makefile
+++ b/builder/Makefile
@@ -1,6 +1,7 @@
-# Makefile for OpenWrt
+# Greatly modified OpenWRT Image Builder Makefile
 #
 # Copyright (C) 2007-2010 OpenWrt.org
+# Copyright (C) 2013 Project Gluon
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -24,7 +25,17 @@ ifneq ($(OPENWRT_BUILD),1)
   export OPENWRT_BUILD
 endif
 
-include rules.mk
+include $(TOPDIR)/rules.mk
+
+PACKAGE_DIR := $(GLUON_OPENWRTDIR)/bin/$(BOARD)/packages
+BIN_DIR := $(GLUON_IMAGEDIR)/$(BOARD)/$(PROFILE)
+
+BOARD_BUILDDIR := $(GLUON_BUILDDIR)/$(BOARD)
+PROFILE_BUILDDIR := $(BOARD_BUILDDIR)/$(PROFILE)
+
+TMP_DIR := $(PROFILE_BUILDDIR)/tmp
+TARGET_DIR := $(PROFILE_BUILDDIR)/root
+
 include $(INCLUDE_DIR)/debug.mk
 include $(INCLUDE_DIR)/depends.mk
 
@@ -37,16 +48,16 @@ include $(INCLUDE_DIR)/package-ipkg.mk
 
 # override variables from rules.mk
 OPKG:= \
-  IPKG_TMP="$(TOPDIR)/tmp/ipkgtmp" \
+  IPKG_TMP="$(TMP_DIR)/ipkgtmp" \
   IPKG_INSTROOT="$(TARGET_DIR)" \
-  IPKG_CONF_DIR="$(TOPDIR)/tmp" \
+  IPKG_CONF_DIR="$(TMP_DIR)" \
   IPKG_OFFLINE_ROOT="$(TARGET_DIR)" \
   $(STAGING_DIR_HOST)/bin/opkg \
-	-f $(GLUONDIR)/build/opkg-$(BOARD).conf \
+	-f $(BOARD_BUILDDIR)/opkg.conf \
 	--force-depends \
 	--force-overwrite \
 	--force-postinstall \
-	--cache $(TOPDIR)/dl \
+	--cache $(TMP_DIR)/dl \
 	--offline-root $(TARGET_DIR) \
 	--add-dest root:/ \
 	--add-arch all:100 \
@@ -55,8 +66,8 @@ OPKG:= \
 define Profile
   $(eval $(call Profile/Default))
   $(eval $(call Profile/$(1)))
-  ifeq ($(USER_PROFILE),)
-    USER_PROFILE:=$(1)
+  ifeq ($(PROFILE),)
+    PROFILE:=$(1)
   endif
   $(1)_NAME:=$(NAME)
   $(1)_PACKAGES:=$(PACKAGES)
@@ -64,7 +75,7 @@ endef
 
 include $(INCLUDE_DIR)/target.mk
 
-BUILD_PACKAGES:=$(sort $(DEFAULT_PACKAGES) $(USER_PACKAGES) $($(USER_PROFILE)_PACKAGES) kernel)
+BUILD_PACKAGES:=$(sort $(DEFAULT_PACKAGES) $(USER_PACKAGES) $($(PROFILE)_PACKAGES) kernel)
 # "-pkgname" in the package list means remove "pkgname" from the package list
 BUILD_PACKAGES:=$(filter-out $(filter -%,$(BUILD_PACKAGES)) $(patsubst -%,%,$(filter -%,$(BUILD_PACKAGES))),$(BUILD_PACKAGES))
 PACKAGES:=
@@ -77,10 +88,10 @@ prepare: FORCE
 	$(MAKE) package_index
 
 _call_image:
-	echo 'Building images for $(BOARD)$(if $($(USER_PROFILE)_NAME), - $($(USER_PROFILE)_NAME))'
+	echo 'Building images for $(BOARD)$(if $($(PROFILE)_NAME), - $($(PROFILE)_NAME))'
 	echo 'Packages: $(BUILD_PACKAGES)'
 	echo
-	rm -rf $(TARGET_DIR)
+	rm -rf $(TARGET_DIR) $(BIN_DIR) $(TMP_DIR)
 	mkdir -p $(TARGET_DIR) $(BIN_DIR) $(TMP_DIR) $(TARGET_DIR)/tmp
 	$(OPKG) update
 	$(MAKE) package_install
@@ -140,16 +151,15 @@ build_image: FORCE
 	@echo Building images...
 	$(call Image/mkfs/prepare)
 	$(NO_TRACE_MAKE) -C $(TOPDIR)/target/linux/$(BOARD)/image install TARGET_BUILD=1 IB=1 IMG_PREFIX="gluon-$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))" \
-		$(if $(USER_PROFILE),PROFILE="$(USER_PROFILE)")
+		PROFILE="$(PROFILE)" TARGET_DIR="$(TARGET_DIR)" BIN_DIR="$(BIN_DIR)" TMP_DIR="$(TMP_DIR)"
 
 image:
 	(unset PROFILE FILES PACKAGES MAKEFLAGS; \
 	$(MAKE) _call_image \
-		$(if $(PROFILE),USER_PROFILE="$(PROFILE)") \
+		$(if $(PROFILE),PROFILE="$(PROFILE)") \
 		$(if $(FILES),USER_FILES="$(FILES)") \
 		$(if $(PACKAGES),USER_PACKAGES="$(PACKAGES)") \
-		BIN_DIR="$(GLUON_IMAGEDIR)" \
-		$(if $(PACKAGE_DIR),PACKAGE_DIR="$(PACKAGE_DIR)"))
+	)
 
-.SILENT: kernel image
+.SILENT: prepare image
 
diff --git a/builder/rules.mk b/builder/rules.mk
deleted file mode 100644
index e657eec7..00000000
--- a/builder/rules.mk
+++ /dev/null
@@ -1,307 +0,0 @@
-#
-# Copyright (C) 2006-2010 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-ifneq ($(__rules_inc),1)
-__rules_inc=1
-
-ifeq ($(DUMP),)
-  -include $(TOPDIR)/.config
-endif
-include $(TOPDIR)/include/debug.mk
-include $(TOPDIR)/include/verbose.mk
-
-TMP_DIR:=$(TOPDIR)/tmp
-
-GREP_OPTIONS=
-export GREP_OPTIONS
-
-qstrip=$(strip $(subst ",,$(1)))
-#"))
-
-empty:=
-space:= $(empty) $(empty)
-merge=$(subst $(space),,$(1))
-confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
-strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
-
-define sep
-
-endef
-
-_SINGLE=export MAKEFLAGS=$(space);
-CFLAGS:=
-ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
-ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
-BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
-TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
-TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
-BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
-SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
-export SHELL:=/usr/bin/env bash
-
-OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
-
-ifeq ($(ARCH),powerpc)
-  FPIC:=-fPIC
-else
-  FPIC:=-fpic
-endif
-
-HOST_FPIC:=-fPIC
-
-ARCH_SUFFIX:=
-GCC_ARCH:=
-
-ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
-  ARCH_SUFFIX:=_$(patsubst -march=arm%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
-  GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
-endif
-ifneq ($(findstring -mips32r2,$(TARGET_OPTIMIZATION)),)
-  ARCH_SUFFIX:=_r2
-endif
-ifdef CONFIG_HAS_SPE_FPU
-  TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
-endif
-
-DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
-BIN_DIR:=$(TOPDIR)/bin/$(BOARD)
-INCLUDE_DIR:=$(TOPDIR)/include
-SCRIPT_DIR:=$(TOPDIR)/scripts
-BUILD_DIR_BASE:=$(TOPDIR)/build_dir
-BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
-STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
-ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
-  GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
-  LIBC:=$(call qstrip,$(CONFIG_LIBC))
-  LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
-  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
-  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
-  DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
-  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
-  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
-  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
-  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
-  PACKAGE_DIR:=$(BIN_DIR)/packages
-else
-  ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
-    GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
-  else
-    GNU_TARGET_NAME=$(shell gcc -dumpmachine)
-  endif
-  REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
-  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
-  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
-  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
-  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
-  PACKAGE_DIR:=$(BIN_DIR)/packages
-endif
-STAMP_DIR:=$(BUILD_DIR)/stamp
-STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
-TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
-TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
-STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
-BUILD_LOG_DIR:=$(TOPDIR)/logs
-
-TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
-TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
-TARGET_CXXFLAGS = $(TARGET_CFLAGS)
-TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
-TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
-ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
-LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
-LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
-LIBGCC_A=$(realpath $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a))
-else
-LIBGCC_A=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a)
-LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
-endif
-LIBRPC=-lrpc
-LIBRPC_DEPENDS=+librpc
-
-ifneq ($(findstring $(ARCH) , mips64 x86_64 ),)
-  LIB_SUFFIX:=64
-endif
-
-ifndef DUMP
-  ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
-    -include $(TOOLCHAIN_DIR)/info.mk
-    export GCC_HONOUR_COPTS:=0
-    TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
-    TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable)
-    TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
-    TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
-    TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
-  else
-    ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
-      TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
-      TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
-      TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
-      TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
-      TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
-      ifneq ($(TOOLCHAIN_BIN_DIRS),)
-        TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
-      endif
-      ifneq ($(TOOLCHAIN_INC_DIRS),)
-        TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
-      endif
-      ifneq ($(TOOLCHAIN_LIB_DIRS),)
-        TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
-      endif
-      TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
-    endif
-  endif
-endif
-TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
-
-ifeq ($(CONFIG_SOFT_FLOAT),y)
-  SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
-  TARGET_CFLAGS+= -msoft-float
-else
-  SOFT_FLOAT_CONFIG_OPTION:=
-endif
-
-export PATH:=$(TARGET_PATH)
-export STAGING_DIR
-export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
-
-PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
-
-export PKG_CONFIG
-
-HOSTCC:=gcc
-HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include
-HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
-HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
-
-TARGET_CC:=$(TARGET_CROSS)gcc
-TARGET_AR:=$(TARGET_CROSS)ar
-TARGET_RANLIB:=$(TARGET_CROSS)ranlib
-TARGET_CXX:=$(if $(CONFIG_INSTALL_LIBSTDCPP),$(TARGET_CROSS)g++,no)
-KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
-SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
-CP:=cp -fpR
-LN:=ln -sf
-
-INSTALL_BIN:=install -m0755
-INSTALL_DIR:=install -d -m0755
-INSTALL_DATA:=install -m0644
-INSTALL_CONF:=install -m0600
-
-TARGET_CC_NOCACHE:=$(TARGET_CC)
-TARGET_CXX_NOCACHE:=$(TARGET_CXX)
-HOSTCC_NOCACHE:=$(HOSTCC)
-export TARGET_CC_NOCACHE
-export TARGET_CXX_NOCACHE
-export HOSTCC_NOCACHE
-
-ifneq ($(CONFIG_CCACHE),)
-  TARGET_CC:= ccache_cc
-  TARGET_CXX:= ccache_cxx
-  HOSTCC:= ccache $(HOSTCC)
-endif
-
-TARGET_CONFIGURE_OPTS = \
-  AR=$(TARGET_CROSS)ar \
-  AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
-  LD=$(TARGET_CROSS)ld \
-  NM=$(TARGET_CROSS)nm \
-  CC="$(TARGET_CC)" \
-  GCC="$(TARGET_CC)" \
-  CXX="$(TARGET_CXX)" \
-  RANLIB=$(TARGET_CROSS)ranlib \
-  STRIP=$(TARGET_CROSS)strip \
-  OBJCOPY=$(TARGET_CROSS)objcopy \
-  OBJDUMP=$(TARGET_CROSS)objdump \
-  SIZE=$(TARGET_CROSS)size
-
-# strip an entire directory
-ifneq ($(CONFIG_NO_STRIP),)
-  RSTRIP:=:
-  STRIP:=:
-else
-  ifneq ($(CONFIG_USE_STRIP),)
-    STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
-  else
-    ifneq ($(CONFIG_USE_SSTRIP),)
-      STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
-    endif
-  endif
-  RSTRIP:= \
-    export CROSS="$(TARGET_CROSS)" \
-		$(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
-		$(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
-    NM="$(TARGET_CROSS)nm" \
-    STRIP="$(STRIP)" \
-    STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
-    $(SCRIPT_DIR)/rstrip.sh
-endif
-
-ifeq ($(CONFIG_ENABLE_LOCALE),true)
-  DISABLE_NLS:=--enable-nls
-else
-  DISABLE_NLS:=--disable-nls
-endif
-
-ifeq ($(CONFIG_IPV6),y)
-  DISABLE_IPV6:=
-else
-  DISABLE_IPV6:=--disable-ipv6
-endif
-
-ifeq ($(CONFIG_TAR_VERBOSITY),y)
-  TAR_OPTIONS:=-xvf -
-else
-  TAR_OPTIONS:=-xf -
-endif
-
-ifeq ($(CONFIG_BUILD_LOG),y)
-  BUILD_LOG:=1
-endif
-
-define shvar
-V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
-endef
-
-define shexport
-$(call shvar,$(1))=$$(call $(1))
-export $(call shvar,$(1))
-endef
-
-define include_mk
-$(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
-endef
-
-# Execute commands under flock
-# $(1) => The shell expression.
-# $(2) => The lock name. If not given, the global lock will be used.
-define locked
-	SHELL= \
-	$(STAGING_DIR_HOST)/bin/flock \
-		$(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
-		-c '$(subst ','\'',$(1))'
-endef
-
-# file extension
-ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
-
-all:
-FORCE: ;
-.PHONY: FORCE
-
-val.%:
-	@$(if $(filter undefined,$(origin $*)),\
-		echo "$* undefined" >&2, \
-		echo '$(subst ','"'"',$($*))' \
-	)
-
-var.%:
-	@$(if $(filter undefined,$(origin $*)),\
-		echo "$* undefined" >&2, \
-		echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
-	)
-
-endif #__rules_inc