rules.mk

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # Copyright (C) 2006-2010 OpenWrt.org
   4 # Copyright (C) 2016 LEDE Project
   5
   6 ifneq ($(__rules_inc),1)
   7 __rules_inc=1
   8
   9 ifeq ($(DUMP),)
  10   -include $(TOPDIR)/.config
  11 endif
  12 include $(TOPDIR)/include/debug.mk
  13 include $(TOPDIR)/include/verbose.mk
  14
  15 ifneq ($(filter check,$(MAKECMDGOALS)),)
  16 CHECK:=1
  17 DUMP:=1
  18 endif
  19
  20 export TMP_DIR:=$(TOPDIR)/tmp
  21 export TMPDIR:=$(TMP_DIR)
  22
  23 qstrip=$(strip $(subst ",,$(1)))
  24 #"))
  25
  26 empty:=
  27 space:= $(empty) $(empty)
  28 comma:=,
  29 merge=$(subst $(space),,$(1))
  30 confvar=$(shell echo '$(foreach v,$(1),$(v)=$(subst ','\'',$($(v))))' | $(MKHASH) md5)
  31 strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
  32
  33 paren_left = (
  34 paren_right = )
  35 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
  36 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
  37
  38 define sep
  39
  40 endef
  41
  42 define newline
  43
  44
  45 endef
  46
  47 __tr_list = $(join $(join $(1),$(foreach char,$(1),$(comma))),$(2))
  48 __tr_head_stripped = $(subst $(space),,$(foreach cv,$(call __tr_list,$(1),$(2)),$$$(paren_left)subst$(cv)$(comma)))
  49 __tr_head = $(subst $(paren_left)subst,$(paren_left)subst$(space),$(__tr_head_stripped))
  50 __tr_tail = $(subst $(space),,$(foreach cv,$(1),$(paren_right)))
  51 __tr_template = $(__tr_head)$$(1)$(__tr_tail)
  52
  53 $(eval toupper = $(call __tr_template,$(chars_lower),$(chars_upper)))
  54 $(eval tolower = $(call __tr_template,$(chars_upper),$(chars_lower)))
  55
  56 version_abbrev = $(if $(if $(CHECK),,$(DUMP)),$(1),$(shell printf '%.8s' $(1)))
  57
  58 _SINGLE=export MAKEFLAGS=$(space);
  59 CFLAGS:=
  60 ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
  61 ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
  62 BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
  63 SUBTARGET:=$(call qstrip,$(CONFIG_TARGET_SUBTARGET))
  64 TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
  65 export EXTRA_OPTIMIZATION:=$(filter-out -fno-plt,$(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION)))
  66 TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
  67 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
  68 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
  69 BUILD_SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
  70 NPROC:=$(shell sysctl -n hw.ncpu 2>/dev/null || nproc)
  71 export SHELL:=/usr/bin/env bash
  72
  73 IS_PACKAGE_BUILD := $(if $(filter package/%,$(BUILD_SUBDIR)),1)
  74
  75 OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
  76
  77 ifneq (,$(findstring $(ARCH) , aarch64 aarch64_be powerpc ))
  78   FPIC:=-DPIC -fPIC
  79 else
  80   FPIC:=-DPIC -fpic
  81 endif
  82
  83 HOST_FPIC:=-DPIC -fPIC
  84
  85 ARCH_SUFFIX:=$(call qstrip,$(CONFIG_CPU_TYPE))
  86 GCC_ARCH:=
  87
  88 ifneq ($(ARCH_SUFFIX),)
  89   ARCH_SUFFIX:=_$(ARCH_SUFFIX)
  90 endif
  91 ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
  92   GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
  93 endif
  94 ifdef CONFIG_HAS_SPE_FPU
  95   TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
  96 endif
  97 ifdef CONFIG_MIPS64_ABI
  98   ifneq ($(CONFIG_MIPS64_ABI_O32),y)
  99      ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
 100   endif
 101 endif
 102
 103 DEFAULT_SUBDIR_TARGETS:=clean download prepare compile update refresh prereq dist distcheck configure check check-depends
 104
 105 define DefaultTargets
 106 $(foreach t,$(DEFAULT_SUBDIR_TARGETS) $(1),
 107   .$(t):
 108   $(t): .$(t)
 109   .PHONY: $(t) .$(t)
 110 )
 111 endef
 112
 113 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
 114 OUTPUT_DIR:=$(if $(call qstrip,$(CONFIG_BINARY_FOLDER)),$(call qstrip,$(CONFIG_BINARY_FOLDER)),$(TOPDIR)/bin)
 115 BIN_DIR:=$(OUTPUT_DIR)/targets/$(BOARD)/$(SUBTARGET)
 116 INCLUDE_DIR:=$(TOPDIR)/include
 117 SCRIPT_DIR:=$(TOPDIR)/scripts
 118 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
 119 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 120   GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
 121   LIBC:=$(call qstrip,$(CONFIG_LIBC))
 122   REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
 123   GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
 124   DIR_SUFFIX:=_$(LIBC)$(if $(CONFIG_arm),_eabi)
 125   BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_MUSL),,-$(LIBC))
 126   TARGET_DIR_NAME = target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
 127   TOOLCHAIN_DIR_NAME = toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
 128 else
 129   ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
 130     GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
 131   else
 132     GNU_TARGET_NAME=$(shell gcc -dumpmachine)
 133   endif
 134   REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
 135   LIBC:=$(call qstrip,$(CONFIG_LIBC))
 136   TARGET_DIR_NAME:=target-$(GNU_TARGET_NAME)_$(LIBC)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
 137   TOOLCHAIN_DIR_NAME:=toolchain-$(GNU_TARGET_NAME)
 138 endif
 139
 140 ifeq ($(or $(CONFIG_EXTERNAL_TOOLCHAIN),$(CONFIG_TARGET_uml)),)
 141   iremap = -f$(if $(CONFIG_REPRODUCIBLE_DEBUG_INFO),file,macro)-prefix-map=$(1)=$(2)
 142 endif
 143
 144 PACKAGE_DIR:=$(BIN_DIR)/packages
 145 PACKAGE_DIR_ALL:=$(TOPDIR)/staging_dir/packages/$(BOARD)
 146 BUILD_DIR:=$(BUILD_DIR_BASE)/$(TARGET_DIR_NAME)
 147 STAGING_DIR:=$(TOPDIR)/staging_dir/$(TARGET_DIR_NAME)
 148 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/$(TOOLCHAIN_DIR_NAME)
 149 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
 150 STAMP_DIR:=$(BUILD_DIR)/stamp
 151 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
 152 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
 153 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
 154 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
 155 STAGING_DIR_IMAGE:=$(STAGING_DIR)/image
 156 BUILD_LOG_DIR:=$(if $(call qstrip,$(CONFIG_BUILD_LOG_DIR)),$(call qstrip,$(CONFIG_BUILD_LOG_DIR)),$(TOPDIR)/logs)
 157 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
 158
 159 BUILD_DIR_HOST:=$(if $(IS_PACKAGE_BUILD),$(BUILD_DIR_BASE)/hostpkg,$(BUILD_DIR_BASE)/host)
 160 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
 161 STAGING_DIR_HOSTPKG:=$(TOPDIR)/staging_dir/hostpkg
 162
 163 TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
 164 TARGET_INIT_PATH:=$(call qstrip,$(CONFIG_TARGET_INIT_PATH))
 165 TARGET_INIT_PATH:=$(if $(TARGET_INIT_PATH),$(TARGET_INIT_PATH),/usr/sbin:/sbin:/usr/bin:/bin)
 166 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
 167 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
 168 TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
 169 TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
 170 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 171 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
 172 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
 173 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
 174 else
 175 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
 176 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
 177 endif
 178
 179 ifeq ($(CONFIG_ARCH_64BIT),y)
 180   LIB_SUFFIX:=64
 181 endif
 182
 183 ifndef DUMP
 184   ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 185     -include $(TOOLCHAIN_DIR)/info.mk
 186     export GCC_HONOUR_COPTS:=0
 187     TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
 188     TARGET_CFLAGS+= -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result
 189     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include
 190     ifeq ($(CONFIG_USE_MUSL),y)
 191       TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include/fortify
 192     endif
 193     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include
 194     TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
 195     TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
 196   else
 197     ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
 198       TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
 199       TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
 200       TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
 201       TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
 202       TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
 203       ifneq ($(TOOLCHAIN_BIN_DIRS),)
 204         TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
 205       endif
 206       ifneq ($(TOOLCHAIN_INC_DIRS),)
 207         TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
 208       endif
 209       ifneq ($(TOOLCHAIN_LIB_DIRS),)
 210         TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
 211       endif
 212       TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
 213     endif
 214   endif
 215 endif
 216 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(STAGING_DIR_HOSTPKG)/bin:$(TARGET_PATH)
 217
 218 ifeq ($(CONFIG_SOFT_FLOAT),y)
 219   SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
 220   ifeq ($(CONFIG_arm),y)
 221     TARGET_CFLAGS+= -mfloat-abi=soft
 222   else
 223     TARGET_CFLAGS+= -msoft-float
 224   endif
 225 else
 226   SOFT_FLOAT_CONFIG_OPTION:=
 227   ifeq ($(CONFIG_arm),y)
 228     TARGET_CFLAGS+= -mfloat-abi=hard
 229   endif
 230 endif
 231
 232 export PATH:=$(TARGET_PATH)
 233 export STAGING_DIR STAGING_DIR_HOST STAGING_DIR_HOSTPKG
 234 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
 235
 236 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
 237
 238 export PKG_CONFIG
 239
 240 HOSTCC:=gcc
 241 HOSTCXX:=g++
 242 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR_HOSTPKG)/include -I$(STAGING_DIR)/host/include)
 243 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
 244 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR_HOSTPKG)/lib -L$(STAGING_DIR)/host/lib)
 245
 246 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 247   TARGET_AR:=$(TARGET_CROSS)gcc-ar
 248   TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
 249   TARGET_NM:=$(TARGET_CROSS)gcc-nm
 250 else
 251   TARGET_AR:=$(TARGET_CROSS)ar
 252   TARGET_RANLIB:=$(TARGET_CROSS)ranlib
 253   TARGET_NM:=$(TARGET_CROSS)nm
 254 endif
 255
 256 BUILD_KEY=$(TOPDIR)/key-build
 257
 258 FAKEROOT:=$(STAGING_DIR_HOST)/bin/fakeroot
 259
 260 TARGET_CC:=$(TARGET_CROSS)gcc
 261 TARGET_CXX:=$(TARGET_CROSS)g++
 262 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
 263 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
 264 ESED:=$(STAGING_DIR_HOST)/bin/sed -E -i -e
 265 MKHASH:=$(STAGING_DIR_HOST)/bin/mkhash
 266 # MKHASH is used in /scripts, so we export it here.
 267 export MKHASH
 268 CP:=cp -fpR
 269 LN:=ln -sf
 270 XARGS:=xargs -r
 271
 272 BASH:=bash
 273 TAR:=tar
 274 FIND:=find
 275 PATCH:=patch
 276 PYTHON:=python
 277
 278 INSTALL_BIN:=install -m0755
 279 INSTALL_SUID:=install -m4755
 280 INSTALL_DIR:=install -d -m0755
 281 INSTALL_DATA:=install -m0644
 282 INSTALL_CONF:=install -m0600
 283
 284 TARGET_CC_NOCACHE:=$(TARGET_CC)
 285 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
 286 HOSTCC_NOCACHE:=$(HOSTCC)
 287 HOSTCXX_NOCACHE:=$(HOSTCXX)
 288 export TARGET_CC_NOCACHE
 289 export TARGET_CXX_NOCACHE
 290 export HOSTCC_NOCACHE
 291 export HOSTCXX_NOCACHE
 292
 293 ifneq ($(CONFIG_CCACHE),)
 294   TARGET_CC:= ccache_cc
 295   TARGET_CXX:= ccache_cxx
 296   HOSTCC:= ccache $(HOSTCC)
 297   HOSTCXX:= ccache $(HOSTCXX)
 298   export CCACHE_BASEDIR:=$(TOPDIR)
 299   export CCACHE_DIR:=$(if $(call qstrip,$(CONFIG_CCACHE_DIR)),$(call qstrip,$(CONFIG_CCACHE_DIR)),$(TOPDIR)/.ccache)
 300   export CCACHE_COMPILERCHECK:=%compiler% -dumpmachine; %compiler% -dumpversion
 301 endif
 302
 303 TARGET_CONFIGURE_OPTS = \
 304   AR="$(TARGET_AR)" \
 305   AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
 306   LD=$(TARGET_CROSS)ld \
 307   NM="$(TARGET_NM)" \
 308   CC="$(TARGET_CC)" \
 309   GCC="$(TARGET_CC)" \
 310   CXX="$(TARGET_CXX)" \
 311   RANLIB="$(TARGET_RANLIB)" \
 312   STRIP=$(TARGET_CROSS)strip \
 313   OBJCOPY=$(TARGET_CROSS)objcopy \
 314   OBJDUMP=$(TARGET_CROSS)objdump \
 315   SIZE=$(TARGET_CROSS)size
 316
 317 # strip an entire directory
 318 ifneq ($(CONFIG_NO_STRIP),)
 319   RSTRIP:=:
 320   STRIP:=:
 321 else
 322   ifneq ($(CONFIG_USE_STRIP),)
 323     STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
 324   else
 325     ifneq ($(CONFIG_USE_SSTRIP),)
 326       STRIP:=$(STAGING_DIR_HOST)/bin/sstrip $(call qstrip,$(CONFIG_SSTRIP_ARGS))
 327     endif
 328   endif
 329   RSTRIP= \
 330     export CROSS="$(TARGET_CROSS)" \
 331                 $(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
 332                 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
 333                 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
 334     NM="$(TARGET_CROSS)nm" \
 335     STRIP="$(STRIP)" \
 336     STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
 337     PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
 338     $(SCRIPT_DIR)/rstrip.sh
 339 endif
 340
 341 NINJA = \
 342         MAKEFLAGS="$(MAKE_JOBSERVER)" \
 343         $(STAGING_DIR_HOST)/bin/ninja \
 344                 $(if $(findstring c,$(OPENWRT_VERBOSE)),-v) \
 345                 $(if $(MAKE_JOBSERVER),,-j1)
 346
 347 ifeq ($(CONFIG_IPV6),y)
 348   DISABLE_IPV6:=
 349 else
 350   DISABLE_IPV6:=--disable-ipv6
 351 endif
 352
 353 TAR_OPTIONS:=-xf -
 354
 355 ifeq ($(CONFIG_BUILD_LOG),y)
 356   BUILD_LOG:=1
 357 endif
 358
 359 export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
 360 export M4:=$(STAGING_DIR_HOST)/bin/m4
 361
 362 define shvar
 363 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
 364 endef
 365
 366 define shexport
 367 export $(call shvar,$(1))=$$(call $(1))
 368 endef
 369
 370 # Execute commands under flock
 371 # $(1) => The shell expression.
 372 # $(2) => The lock name. If not given, the global lock will be used.
 373 ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
 374   define locked
 375         SHELL= \
 376         flock \
 377                 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
 378                 -c '$(subst ','\'',$(1))'
 379   endef
 380 else
 381   locked=$(1)
 382 endif
 383
 384 # Recursively copy paths into another directory, purge dangling
 385 # symlinks before.
 386 # $(1) => File glob expression
 387 # $(2) => Destination directory
 388 define file_copy
 389         for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
 390                 ( cd $$src_dir; find -type f -or -type d ) | \
 391                         ( cd $(2); while :; do \
 392                                 read FILE; \
 393                                 [ -z "$$FILE" ] && break; \
 394                                 [ -L "$$FILE" ] || continue; \
 395                                 echo "Removing symlink $(2)/$$FILE"; \
 396                                 rm -f "$$FILE"; \
 397                         done; ); \
 398         done; \
 399         $(CP) $(1) $(2)
 400 endef
 401
 402 # Calculate sha256sum of any plain file within a given directory
 403 # $(1) => Input directory
 404 # $(2) => If set, recurse into subdirectories
 405 define sha256sums
 406         (cd $(1); find . $(if $(2),,-maxdepth 1) -type f -not -name 'sha256sums' -printf "%P\n" | sort | \
 407                 xargs -r $(MKHASH) -n sha256 | sed -ne 's!^\(.*\) \(.*\)$$!\1 *\2!p' > sha256sums)
 408 endef
 409
 410 # file extension
 411 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
 412
 413 # Count Git commits of a package
 414 # $(1) => if non-empty: count commits since last ": [uU]pdate to " or ": [bB]ump to " in commit message
 415 define commitcount
 416 $(shell \
 417   if git log -1 >/dev/null 2>/dev/null; then \
 418     if [ -n "$(1)" ]; then \
 419       last_bump="$$(git log --pretty=format:'%h %s' . | \
 420         grep --max-count=1 -e ': [uU]pdate to ' -e ': [bB]ump to ' | \
 421         cut -f 1 -d ' ')"; \
 422     fi; \
 423     if [ -n "$$last_bump" ]; then \
 424       echo -n $$(($$(git rev-list --count "$$last_bump..HEAD" .) + 1)); \
 425     else \
 426       git rev-list --count HEAD .; \
 427     fi; \
 428   else \
 429     secs="$$(($(SOURCE_DATE_EPOCH) % 86400))"; \
 430     date="$$(date --utc --date="@$(SOURCE_DATE_EPOCH)" "+%y%m%d")"; \
 431     printf '%s.%05d' "$$date" "$$secs"; \
 432   fi; \
 433 )
 434 endef
 435
 436 abi_version_str = $(subst -,,$(subst _,,$(subst .,,$(1))))
 437
 438 COMMITCOUNT = $(if $(DUMP),0,$(call commitcount))
 439 AUTORELEASE = $(if $(DUMP),0,$(call commitcount,1))
 440
 441 all:
 442 FORCE: ;
 443 .PHONY: FORCE
 444
 445 check: FORCE
 446         @true
 447
 448 val.%:
 449         @$(if $(filter undefined,$(origin $*)),\
 450                 echo "$* undefined" >&2, \
 451                 echo '$(subst ','"'"',$($*))' \
 452         )
 453
 454 var.%:
 455         @$(if $(filter undefined,$(origin $*)),\
 456                 echo "$* undefined" >&2, \
 457                 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
 458         )
 459
 460 endif #__rules_inc