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9219b0660a
openwrt/rules.mk
Michael Pratt d87a8aa148
treewide: add ORIG_PATH variable 
Add a variable that stores the original value of $PATH
in the host system's shell, before Make alters it.

This can be useful for when it is necessary
to ignore symlinks and programs made by the build system.

Define this new variable before all instances of
'export PATH:=' or similar.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2023-06-05 08:31:47 +02:00

464 lines
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Makefile
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# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2006-2010 OpenWrt.org
# Copyright (C) 2016 LEDE Project
ifneq ($(__rules_inc),1)
__rules_inc=1
ifeq ($(DUMP),)
-include $(TOPDIR)/.config
endif
include $(TOPDIR)/include/debug.mk
include $(TOPDIR)/include/verbose.mk
ifneq ($(filter check,$(MAKECMDGOALS)),)
CHECK:=1
DUMP:=1
endif
export TMP_DIR:=$(TOPDIR)/tmp
export TMPDIR:=$(TMP_DIR)
qstrip=$(strip $(subst ",,$(1)))
#"))
empty:=
space:= $(empty) $(empty)
comma:=,
merge=$(subst $(space),,$(1))
confvar=$(shell echo '$(foreach v,$(1),$(v)=$(subst ','\'',$($(v))))' | $(MKHASH) md5)
strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
paren_left = (
paren_right = )
chars_lower = a b c d e f g h i j k l m n o p q r s t u v w x y z
chars_upper = A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
define sep
endef
define newline
endef
__tr_list = $(join $(join $(1),$(foreach char,$(1),$(comma))),$(2))
__tr_head_stripped = $(subst $(space),,$(foreach cv,$(call __tr_list,$(1),$(2)),$$$(paren_left)subst$(cv)$(comma)))
__tr_head = $(subst $(paren_left)subst,$(paren_left)subst$(space),$(__tr_head_stripped))
__tr_tail = $(subst $(space),,$(foreach cv,$(1),$(paren_right)))
__tr_template = $(__tr_head)$$(1)$(__tr_tail)
$(eval toupper = $(call __tr_template,$(chars_lower),$(chars_upper)))
$(eval tolower = $(call __tr_template,$(chars_upper),$(chars_lower)))
version_abbrev = $(if $(if $(CHECK),,$(DUMP)),$(1),$(shell printf '%.8s' $(1)))
_SINGLE=export MAKEFLAGS=$(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,$(CONFIG_TARGET_BOARD))
SUBTARGET:=$(call qstrip,$(CONFIG_TARGET_SUBTARGET))
TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
BUILD_SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
NPROC:=$(shell sysctl -n hw.ncpu 2>/dev/null || nproc)
export SHELL:=/usr/bin/env bash
IS_PACKAGE_BUILD := $(if $(filter package/%,$(BUILD_SUBDIR)),1)
OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
ifneq (,$(findstring $(ARCH) , aarch64 aarch64_be powerpc ))
FPIC:=-DPIC -fPIC
else
FPIC:=-DPIC -fpic
endif
HOST_FPIC:=-DPIC -fPIC
ARCH_SUFFIX:=$(call qstrip,$(CONFIG_CPU_TYPE))
GCC_ARCH:=
ifneq ($(ARCH_SUFFIX),)
ARCH_SUFFIX:=_$(ARCH_SUFFIX)
endif
ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
endif
ifdef CONFIG_HAS_SPE_FPU
TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
endif
ifdef CONFIG_MIPS64_ABI
ifneq ($(CONFIG_MIPS64_ABI_O32),y)
ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
endif
endif
DEFAULT_SUBDIR_TARGETS:=clean download prepare compile update refresh prereq dist distcheck configure check check-depends
define DefaultTargets
$(foreach t,$(DEFAULT_SUBDIR_TARGETS) $(1),
.$(t):
$(t): .$(t)
.PHONY: $(t) .$(t)
)
endef
DL_DIR=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)$(if $(DL_SUBDIR),/$(DL_SUBDIR))
OUTPUT_DIR:=$(if $(call qstrip,$(CONFIG_BINARY_FOLDER)),$(call qstrip,$(CONFIG_BINARY_FOLDER)),$(TOPDIR)/bin)
BIN_DIR:=$(OUTPUT_DIR)/targets/$(BOARD)/$(SUBTARGET)
INCLUDE_DIR:=$(TOPDIR)/include
SCRIPT_DIR:=$(TOPDIR)/scripts
BUILD_DIR_BASE:=$(TOPDIR)/build_dir
ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
LIBC:=$(call qstrip,$(CONFIG_LIBC))
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)$(if $(CONFIG_arm),_eabi)
BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_MUSL),,-$(LIBC))
TARGET_DIR_NAME = target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
TOOLCHAIN_DIR_NAME = toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
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=$(GNU_TARGET_NAME)
LIBC:=$(call qstrip,$(CONFIG_LIBC))
TARGET_DIR_NAME:=target-$(GNU_TARGET_NAME)_$(LIBC)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
TOOLCHAIN_DIR_NAME:=toolchain-$(GNU_TARGET_NAME)
endif
ifeq ($(or $(CONFIG_EXTERNAL_TOOLCHAIN),$(CONFIG_TARGET_uml)),)
iremap = -f$(if $(CONFIG_REPRODUCIBLE_DEBUG_INFO),file,macro)-prefix-map=$(1)=$(2)
endif
PACKAGE_DIR:=$(BIN_DIR)/packages
PACKAGE_DIR_ALL:=$(TOPDIR)/staging_dir/packages/$(BOARD)
BUILD_DIR:=$(BUILD_DIR_BASE)/$(TARGET_DIR_NAME)
STAGING_DIR:=$(TOPDIR)/staging_dir/$(TARGET_DIR_NAME)
BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/$(TOOLCHAIN_DIR_NAME)
TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
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-$(BOARD)
STAGING_DIR_IMAGE:=$(STAGING_DIR)/image
BUILD_LOG_DIR:=$(if $(call qstrip,$(CONFIG_BUILD_LOG_DIR)),$(call qstrip,$(CONFIG_BUILD_LOG_DIR)),$(TOPDIR)/logs)
PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
BUILD_DIR_HOST:=$(if $(IS_PACKAGE_BUILD),$(BUILD_DIR_BASE)/hostpkg,$(BUILD_DIR_BASE)/host)
STAGING_DIR_HOST:=$(abspath $(STAGING_DIR)/../host)
STAGING_DIR_HOSTPKG:=$(abspath $(STAGING_DIR)/../hostpkg)
TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
TARGET_INIT_PATH:=$(call qstrip,$(CONFIG_TARGET_INIT_PATH))
TARGET_INIT_PATH:=$(if $(TARGET_INIT_PATH),$(TARGET_INIT_PATH),/usr/sbin:/sbin:/usr/bin:/bin)
TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
TARGET_CXXFLAGS = $(TARGET_CFLAGS)
TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
ifneq ($(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 $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
else
LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
endif
ifeq ($(CONFIG_ARCH_64BIT),y)
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
TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include
ifeq ($(CONFIG_USE_MUSL),y)
TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include/fortify
endif
TARGET_CPPFLAGS+= -I$(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
endif
endif
endif
TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(STAGING_DIR_HOSTPKG)/bin:$(TARGET_PATH)
ifeq ($(CONFIG_SOFT_FLOAT),y)
SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
ifeq ($(CONFIG_arm),y)
TARGET_CFLAGS+= -mfloat-abi=soft
else
TARGET_CFLAGS+= -msoft-float
endif
else
SOFT_FLOAT_CONFIG_OPTION:=
ifeq ($(CONFIG_arm),y)
TARGET_CFLAGS+= -mfloat-abi=hard
endif
endif
export ORIG_PATH:=$(if $(ORIG_PATH),$(ORIG_PATH),$(PATH))
export PATH:=$(TARGET_PATH)
export STAGING_DIR STAGING_DIR_HOST STAGING_DIR_HOSTPKG
export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
export PKG_CONFIG
HOSTCC:=gcc
HOSTCXX:=g++
HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR_HOSTPKG)/include -I$(STAGING_DIR)/host/include)
HOST_CXXFLAGS:=
HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR_HOSTPKG)/lib -L$(STAGING_DIR)/host/lib)
BUILD_KEY=$(TOPDIR)/key-build
FAKEROOT:=$(STAGING_DIR_HOST)/bin/fakeroot
TARGET_AR:=$(TARGET_CROSS)gcc-ar
TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
TARGET_NM:=$(TARGET_CROSS)gcc-nm
TARGET_CC:=$(TARGET_CROSS)gcc
TARGET_CXX:=$(TARGET_CROSS)g++
KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
FILECMD:=$(STAGING_DIR_HOST)/bin/file
SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
ESED:=$(STAGING_DIR_HOST)/bin/sed -E -i -e
MKHASH:=$(STAGING_DIR_HOST)/bin/mkhash
# MKHASH is used in /scripts, so we export it here.
export MKHASH
CP:=cp -fpR
LN:=ln -sf
XARGS:=xargs -r
BASH:=bash
TAR:=tar
FIND:=find
PATCH:=patch
PYTHON:=python3
ifeq ($(HOST_OS),Darwin)
TRUE:=/usr/bin/env gtrue
FALSE:=/usr/bin/env gfalse
else
TRUE:=/usr/bin/env true
FALSE:=/usr/bin/env false
endif
INSTALL_BIN:=install -m0755
INSTALL_SUID:=install -m4755
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:=$(HOSTCC)
HOSTCXX_NOCACHE:=$(HOSTCXX)
export TARGET_CC_NOCACHE
export TARGET_CXX_NOCACHE
export HOSTCC_NOCACHE
export HOSTCXX_NOCACHE
ifneq ($(CONFIG_CCACHE),)
TARGET_CC:= ccache $(TARGET_CC)
TARGET_CXX:= ccache $(TARGET_CXX)
HOSTCC:= ccache $(HOSTCC)
HOSTCXX:= ccache $(HOSTCXX)
export CCACHE_BASEDIR:=$(TOPDIR)
export CCACHE_DIR:=$(if $(call qstrip,$(CONFIG_CCACHE_DIR)),$(call qstrip,$(CONFIG_CCACHE_DIR)),$(TOPDIR)/.ccache)
export CCACHE_COMPILERCHECK:=%compiler% -dumpmachine; %compiler% -dumpversion
endif
TARGET_CONFIGURE_OPTS = \
AR="$(TARGET_AR)" \
AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
LD=$(TARGET_CROSS)ld \
NM="$(TARGET_NM)" \
CC="$(TARGET_CC)" \
GCC="$(TARGET_CC)" \
CXX="$(TARGET_CXX)" \
RANLIB="$(TARGET_RANLIB)" \
STRIP=$(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 $(call qstrip,$(CONFIG_SSTRIP_ARGS))
endif
endif
RSTRIP= \
export CROSS="$(TARGET_CROSS)" \
$(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
$(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" \
PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
$(SCRIPT_DIR)/rstrip.sh
endif
NINJA = \
MAKEFLAGS="$(MAKE_JOBSERVER)" \
$(STAGING_DIR_HOST)/bin/ninja \
$(if $(findstring c,$(OPENWRT_VERBOSE)),-v) \
$(if $(MAKE_JOBSERVER),,-j1)
ifeq ($(CONFIG_IPV6),y)
DISABLE_IPV6:=
else
DISABLE_IPV6:=--disable-ipv6
endif
TAR_OPTIONS:=-xf -
ifeq ($(CONFIG_BUILD_LOG),y)
BUILD_LOG:=1
endif
export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
export HOST_GNULIB_SRCDIR:=$(STAGING_DIR_HOST)/share/gnulib
export M4:=$(STAGING_DIR_HOST)/bin/m4
define shvar
V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
endef
define shexport
export $(call shvar,$(1))=$$(call $(1))
endef
# Execute commands under flock
# $(1) => The shell expression.
# $(2) => The lock name. If not given, the global lock will be used.
ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
define locked
SHELL= \
flock \
$(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
-c '$(subst ','\'',$(1))'
endef
else
locked=$(1)
endif
# Recursively copy paths into another directory, purge dangling
# symlinks before.
# $(1) => File glob expression
# $(2) => Destination directory
define file_copy
for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
( cd $$src_dir; find -type f -or -type d ) | \
( cd $(2); while :; do \
read FILE; \
[ -z "$$FILE" ] && break; \
[ -L "$$FILE" ] || continue; \
echo "Removing symlink $(2)/$$FILE"; \
rm -f "$$FILE"; \
done; ); \
done; \
$(CP) $(1) $(2)
endef
# Calculate sha256sum of any plain file within a given directory
# $(1) => Input directory
# $(2) => If set, recurse into subdirectories
define sha256sums
(cd $(1); find . $(if $(2),,-maxdepth 1) -type f -not -name 'sha256sums' -printf "%P\n" | sort | \
xargs -r $(MKHASH) -n sha256 | sed -ne 's!^\(.*\) \(.*\)$$!\1 *\2!p' > sha256sums)
endef
# file extension
ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
# Count Git commits of a package
# $(1) => if non-empty: count commits since last ": [uU]pdate to " or ": [bB]ump to " in commit message
define commitcount
$(shell \
if git log -1 >/dev/null 2>/dev/null; then \
if [ -n "$(1)" ]; then \
last_bump="$$(git log --pretty=format:'%h %s' . | \
grep -m 1 -e ': [uU]pdate to ' -e ': [bB]ump to ' | \
cut -f 1 -d ' ')"; \
fi; \
if [ -n "$$last_bump" ]; then \
echo -n $$(($$(git rev-list --count "$$last_bump..HEAD" .) + 1)); \
else \
git rev-list --count HEAD .; \
fi; \
else \
secs="$$(($(SOURCE_DATE_EPOCH) % 86400))"; \
date="$$(date --utc --date="@$(SOURCE_DATE_EPOCH)" "+%y%m%d")"; \
printf '%s.%05d' "$$date" "$$secs"; \
fi; \
)
endef
abi_version_str = $(subst -,,$(subst _,,$(subst .,,$(1))))
COMMITCOUNT = $(if $(DUMP),0,$(call commitcount))
AUTORELEASE = $(if $(DUMP),0,$(call commitcount,1))
all:
FORCE: ;
.PHONY: FORCE
check: FORCE
@true
val.%:
@$(if $(filter undefined,$(origin $*)),\
echo "$* undefined" >&2, \
echo '$(subst ','"'"',$($*))' \
)
var.%:
@$(if $(filter undefined,$(origin $*)),\
echo "$* undefined" >&2, \
echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
)
endif #__rules_inc
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