rules.mk

   1 #
   2 # Copyright (C) 2006-2010 OpenWrt.org
   3 # Copyright (C) 2016 LEDE Project
   4 #
   5 # This is free software, licensed under the GNU General Public License v2.
   6 # See /LICENSE for more information.
   7 #
   8
   9 ifneq ($(__rules_inc),1)
  10 __rules_inc=1
  11
  12 ifeq ($(DUMP),)
  13   -include $(TOPDIR)/.config
  14 endif
  15 include $(TOPDIR)/include/debug.mk
  16 include $(TOPDIR)/include/verbose.mk
  17
  18 ifneq ($(filter check,$(MAKECMDGOALS)),)
  19 CHECK:=1
  20 DUMP:=1
  21 endif
  22
  23 export TMP_DIR:=$(TOPDIR)/tmp
  24 export TMPDIR:=$(TMP_DIR)
  25
  26 qstrip=$(strip $(subst ",,$(1)))
  27 #"))
  28
  29 empty:=
  30 space:= $(empty) $(empty)
  31 comma:=,
  32 merge=$(subst $(space),,$(1))
  33 confvar=$(shell echo '$(foreach v,$(1),$(v)=$(subst ','\'',$($(v))))' | $(STAGING_DIR_HOST)/bin/mkhash md5)
  34 strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
  35
  36 paren_left = (
  37 paren_right = )
  38 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
  39 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
  40
  41 define sep
  42
  43 endef
  44
  45 define newline
  46
  47
  48 endef
  49
  50 __tr_list = $(join $(join $(1),$(foreach char,$(1),$(comma))),$(2))
  51 __tr_head_stripped = $(subst $(space),,$(foreach cv,$(call __tr_list,$(1),$(2)),$$$(paren_left)subst$(cv)$(comma)))
  52 __tr_head = $(subst $(paren_left)subst,$(paren_left)subst$(space),$(__tr_head_stripped))
  53 __tr_tail = $(subst $(space),,$(foreach cv,$(1),$(paren_right)))
  54 __tr_template = $(__tr_head)$$(1)$(__tr_tail)
  55
  56 $(eval toupper = $(call __tr_template,$(chars_lower),$(chars_upper)))
  57 $(eval tolower = $(call __tr_template,$(chars_upper),$(chars_lower)))
  58
  59 version_abbrev = $(if $(if $(CHECK),,$(DUMP)),$(1),$(shell printf '%.8s' $(1)))
  60
  61 _SINGLE=export MAKEFLAGS=$(space);
  62 CFLAGS:=
  63 ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
  64 ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
  65 BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
  66 SUBTARGET:=$(call qstrip,$(CONFIG_TARGET_SUBTARGET))
  67 TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
  68 export EXTRA_OPTIMIZATION:=$(filter-out -fno-plt,$(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION)))
  69 TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
  70 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
  71 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
  72 BUILD_SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
  73 export SHELL:=/usr/bin/env bash
  74
  75 IS_PACKAGE_BUILD := $(if $(filter package/%,$(BUILD_SUBDIR)),1)
  76
  77 OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
  78
  79 ifeq ($(ARCH),powerpc)
  80   FPIC:=-fPIC
  81 else
  82   FPIC:=-fpic
  83 endif
  84
  85 HOST_FPIC:=-fPIC
  86
  87 ARCH_SUFFIX:=$(call qstrip,$(CONFIG_CPU_TYPE))
  88 GCC_ARCH:=
  89
  90 ifneq ($(ARCH_SUFFIX),)
  91   ARCH_SUFFIX:=_$(ARCH_SUFFIX)
  92 endif
  93 ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
  94   GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
  95 endif
  96 ifdef CONFIG_HAS_SPE_FPU
  97   TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
  98 endif
  99 ifdef CONFIG_MIPS64_ABI
 100   ifneq ($(CONFIG_MIPS64_ABI_O32),y)
 101      ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
 102   endif
 103 endif
 104
 105 DEFAULT_SUBDIR_TARGETS:=clean download prepare compile update refresh prereq dist distcheck configure check check-depends
 106
 107 define DefaultTargets
 108 $(foreach t,$(DEFAULT_SUBDIR_TARGETS) $(1),
 109   .$(t):
 110   $(t): .$(t)
 111   .PHONY: $(t) .$(t)
 112 )
 113 endef
 114
 115 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
 116 OUTPUT_DIR:=$(if $(call qstrip,$(CONFIG_BINARY_FOLDER)),$(call qstrip,$(CONFIG_BINARY_FOLDER)),$(TOPDIR)/bin)
 117 BIN_DIR:=$(OUTPUT_DIR)/targets/$(BOARD)/$(SUBTARGET)
 118 INCLUDE_DIR:=$(TOPDIR)/include
 119 SCRIPT_DIR:=$(TOPDIR)/scripts
 120 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
 121 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 122   GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
 123   LIBC:=$(call qstrip,$(CONFIG_LIBC))
 124   REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
 125   GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
 126   DIR_SUFFIX:=_$(LIBC)$(if $(CONFIG_arm),_eabi)
 127   BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_MUSL),,-$(LIBC))
 128   TARGET_DIR_NAME = target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
 129   TOOLCHAIN_DIR_NAME = toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
 130 else
 131   ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
 132     GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
 133   else
 134     GNU_TARGET_NAME=$(shell gcc -dumpmachine)
 135   endif
 136   REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
 137   LIBC:=$(call qstrip,$(CONFIG_LIBC))
 138   TARGET_DIR_NAME:=target-$(GNU_TARGET_NAME)_$(LIBC)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
 139   TOOLCHAIN_DIR_NAME:=toolchain-$(GNU_TARGET_NAME)
 140 endif
 141
 142 ifeq ($(or $(CONFIG_EXTERNAL_TOOLCHAIN),$(CONFIG_GCC_VERSION_4_8),$(CONFIG_TARGET_uml)),)
 143   ifeq ($(CONFIG_GCC_USE_EMBEDDED_PATH_REMAP),y)
 144     iremap = -fmacro-prefix-map=$(1)=$(2)
 145   else
 146     iremap = -iremap$(1):$(2)
 147   endif
 148 endif
 149
 150 PACKAGE_DIR:=$(BIN_DIR)/packages
 151 PACKAGE_DIR_ALL:=$(TOPDIR)/staging_dir/packages/$(BOARD)
 152 BUILD_DIR:=$(BUILD_DIR_BASE)/$(TARGET_DIR_NAME)
 153 STAGING_DIR:=$(TOPDIR)/staging_dir/$(TARGET_DIR_NAME)
 154 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/$(TOOLCHAIN_DIR_NAME)
 155 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
 156 STAMP_DIR:=$(BUILD_DIR)/stamp
 157 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
 158 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
 159 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
 160 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
 161 STAGING_DIR_IMAGE:=$(STAGING_DIR)/image
 162 BUILD_LOG_DIR:=$(TOPDIR)/logs
 163 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
 164
 165 BUILD_DIR_HOST:=$(if $(IS_PACKAGE_BUILD),$(BUILD_DIR_BASE)/hostpkg,$(BUILD_DIR_BASE)/host)
 166 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
 167 STAGING_DIR_HOSTPKG:=$(TOPDIR)/staging_dir/hostpkg
 168
 169 TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
 170 TARGET_INIT_PATH:=$(call qstrip,$(CONFIG_TARGET_INIT_PATH))
 171 TARGET_INIT_PATH:=$(if $(TARGET_INIT_PATH),$(TARGET_INIT_PATH),/usr/sbin:/sbin:/usr/bin:/bin)
 172 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
 173 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
 174 TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
 175 TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
 176 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
 177 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
 178 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 179 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
 180 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
 181 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
 182 else
 183 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
 184 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
 185 endif
 186 LIBRPC=-lrpc
 187 LIBRPC_DEPENDS=+librpc
 188
 189 ifeq ($(CONFIG_ARCH_64BIT),y)
 190   LIB_SUFFIX:=64
 191 endif
 192
 193 ifndef DUMP
 194   ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 195     -include $(TOOLCHAIN_DIR)/info.mk
 196     export GCC_HONOUR_COPTS:=0
 197     TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
 198     TARGET_CFLAGS+= -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result
 199     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include
 200     ifeq ($(CONFIG_USE_MUSL),y)
 201       TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include/fortify
 202     endif
 203     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include
 204     TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
 205     TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
 206   else
 207     ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
 208       TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
 209       TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
 210       TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
 211       TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
 212       TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
 213       ifneq ($(TOOLCHAIN_BIN_DIRS),)
 214         TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
 215       endif
 216       ifneq ($(TOOLCHAIN_INC_DIRS),)
 217         TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
 218       endif
 219       ifneq ($(TOOLCHAIN_LIB_DIRS),)
 220         TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
 221       endif
 222       TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
 223     endif
 224   endif
 225 endif
 226 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(STAGING_DIR_HOSTPKG)/bin:$(TARGET_PATH)
 227
 228 ifeq ($(CONFIG_SOFT_FLOAT),y)
 229   SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
 230   ifeq ($(CONFIG_arm),y)
 231     TARGET_CFLAGS+= -mfloat-abi=soft
 232   else
 233     TARGET_CFLAGS+= -msoft-float
 234   endif
 235 else
 236   SOFT_FLOAT_CONFIG_OPTION:=
 237   ifeq ($(CONFIG_arm),y)
 238     TARGET_CFLAGS+= -mfloat-abi=hard
 239   endif
 240 endif
 241
 242 export PATH:=$(TARGET_PATH)
 243 export STAGING_DIR STAGING_DIR_HOST STAGING_DIR_HOSTPKG
 244 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
 245
 246 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
 247
 248 export PKG_CONFIG
 249
 250 HOSTCC:=gcc
 251 HOSTCXX:=g++
 252 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR_HOSTPKG)/include -I$(STAGING_DIR)/host/include)
 253 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
 254 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR_HOSTPKG)/lib -L$(STAGING_DIR)/host/lib)
 255
 256 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 257   TARGET_AR:=$(TARGET_CROSS)gcc-ar
 258   TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
 259   TARGET_NM:=$(TARGET_CROSS)gcc-nm
 260 else
 261   TARGET_AR:=$(TARGET_CROSS)ar
 262   TARGET_RANLIB:=$(TARGET_CROSS)ranlib
 263   TARGET_NM:=$(TARGET_CROSS)nm
 264 endif
 265
 266 BUILD_KEY=$(TOPDIR)/key-build
 267
 268 TARGET_CC:=$(TARGET_CROSS)gcc
 269 TARGET_CXX:=$(TARGET_CROSS)g++
 270 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
 271 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
 272 ESED:=$(STAGING_DIR_HOST)/bin/sed -E -i -e
 273 CP:=cp -fpR
 274 LN:=ln -sf
 275 XARGS:=xargs -r
 276
 277 BASH:=bash
 278 TAR:=tar
 279 FIND:=find
 280 PATCH:=patch
 281 PYTHON:=python
 282
 283 INSTALL_BIN:=install -m0755
 284 INSTALL_SUID:=install -m4755
 285 INSTALL_DIR:=install -d -m0755
 286 INSTALL_DATA:=install -m0644
 287 INSTALL_CONF:=install -m0600
 288
 289 TARGET_CC_NOCACHE:=$(TARGET_CC)
 290 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
 291 HOSTCC_NOCACHE:=$(HOSTCC)
 292 HOSTCXX_NOCACHE:=$(HOSTCXX)
 293 export TARGET_CC_NOCACHE
 294 export TARGET_CXX_NOCACHE
 295 export HOSTCC_NOCACHE
 296
 297 ifneq ($(CONFIG_CCACHE),)
 298   TARGET_CC:= ccache_cc
 299   TARGET_CXX:= ccache_cxx
 300   HOSTCC:= ccache $(HOSTCC)
 301   HOSTCXX:= ccache $(HOSTCXX)
 302 endif
 303
 304 TARGET_CONFIGURE_OPTS = \
 305   AR="$(TARGET_AR)" \
 306   AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
 307   LD=$(TARGET_CROSS)ld \
 308   NM="$(TARGET_NM)" \
 309   CC="$(TARGET_CC)" \
 310   GCC="$(TARGET_CC)" \
 311   CXX="$(TARGET_CXX)" \
 312   RANLIB="$(TARGET_RANLIB)" \
 313   STRIP=$(TARGET_CROSS)strip \
 314   OBJCOPY=$(TARGET_CROSS)objcopy \
 315   OBJDUMP=$(TARGET_CROSS)objdump \
 316   SIZE=$(TARGET_CROSS)size
 317
 318 # strip an entire directory
 319 ifneq ($(CONFIG_NO_STRIP),)
 320   RSTRIP:=:
 321   STRIP:=:
 322 else
 323   ifneq ($(CONFIG_USE_STRIP),)
 324     STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
 325   else
 326     ifneq ($(CONFIG_USE_SSTRIP),)
 327       STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
 328     endif
 329   endif
 330   RSTRIP= \
 331     export CROSS="$(TARGET_CROSS)" \
 332                 $(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
 333                 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
 334                 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
 335     NM="$(TARGET_CROSS)nm" \
 336     STRIP="$(STRIP)" \
 337     STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
 338     PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
 339     $(SCRIPT_DIR)/rstrip.sh
 340 endif
 341
 342 ifeq ($(CONFIG_IPV6),y)
 343   DISABLE_IPV6:=
 344 else
 345   DISABLE_IPV6:=--disable-ipv6
 346 endif
 347
 348 TAR_OPTIONS:=-xf -
 349
 350 ifeq ($(CONFIG_BUILD_LOG),y)
 351   BUILD_LOG:=1
 352 endif
 353
 354 export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
 355 export M4:=$(STAGING_DIR_HOST)/bin/m4
 356
 357 define shvar
 358 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
 359 endef
 360
 361 define shexport
 362 export $(call shvar,$(1))=$$(call $(1))
 363 endef
 364
 365 # Execute commands under flock
 366 # $(1) => The shell expression.
 367 # $(2) => The lock name. If not given, the global lock will be used.
 368 ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
 369   define locked
 370         SHELL= \
 371         flock \
 372                 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
 373                 -c '$(subst ','\'',$(1))'
 374   endef
 375 else
 376   locked=$(1)
 377 endif
 378
 379 # Recursively copy paths into another directory, purge dangling
 380 # symlinks before.
 381 # $(1) => File glob expression
 382 # $(2) => Destination directory
 383 define file_copy
 384         for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
 385                 ( cd $$src_dir; find -type f -or -type d ) | \
 386                         ( cd $(2); while :; do \
 387                                 read FILE; \
 388                                 [ -z "$$FILE" ] && break; \
 389                                 [ -L "$$FILE" ] || continue; \
 390                                 echo "Removing symlink $(2)/$$FILE"; \
 391                                 rm -f "$$FILE"; \
 392                         done; ); \
 393         done; \
 394         $(CP) $(1) $(2)
 395 endef
 396
 397 # Calculate sha256sum of any plain file within a given directory
 398 # $(1) => Input directory
 399 # $(2) => If set, recurse into subdirectories
 400 define sha256sums
 401         (cd $(1); find . $(if $(2),,-maxdepth 1) -type f -not -name 'sha256sums' -printf "%P\n" | sort | \
 402                 xargs -r $(STAGING_DIR_HOST)/bin/mkhash -n sha256 | sed -ne 's!^\(.*\) \(.*\)$$!\1 *\2!p' > sha256sums)
 403 endef
 404
 405 # file extension
 406 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
 407
 408 all:
 409 FORCE: ;
 410 .PHONY: FORCE
 411
 412 check: FORCE
 413         @true
 414
 415 val.%:
 416         @$(if $(filter undefined,$(origin $*)),\
 417                 echo "$* undefined" >&2, \
 418                 echo '$(subst ','"'"',$($*))' \
 419         )
 420
 421 var.%:
 422         @$(if $(filter undefined,$(origin $*)),\
 423                 echo "$* undefined" >&2, \
 424                 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
 425         )
 426
 427 endif #__rules_inc