package/pkg-generic.mk

   1 ################################################################################
   2 # Generic package infrastructure
   3 #
   4 # This file implements an infrastructure that eases development of
   5 # package .mk files. It should be used for packages that do not rely
   6 # on a well-known build system for which Buildroot has a dedicated
   7 # infrastructure (so far, Buildroot has special support for
   8 # autotools-based and CMake-based packages).
   9 #
  10 # See the Buildroot documentation for details on the usage of this
  11 # infrastructure
  12 #
  13 # In terms of implementation, this generic infrastructure requires the
  14 # .mk file to specify:
  15 #
  16 #   1. Metadata information about the package: name, version,
  17 #      download URL, etc.
  18 #
  19 #   2. Description of the commands to be executed to configure, build
  20 #      and install the package
  21 ################################################################################
  22
  23 ################################################################################
  24 # Helper functions to catch start/end of each step
  25 ################################################################################
  26
  27 # Those two functions are called by each step below.
  28 # They are responsible for calling all hooks defined in
  29 # $(GLOBAL_INSTRUMENTATION_HOOKS) and pass each of them
  30 # three arguments:
  31 #   $1: either 'start' or 'end'
  32 #   $2: the name of the step
  33 #   $3: the name of the package
  34
  35 # Start step
  36 # $1: step name
  37 define step_start
  38         $(foreach hook,$(GLOBAL_INSTRUMENTATION_HOOKS),$(call $(hook),start,$(1),$($(PKG)_NAME))$(sep))
  39 endef
  40
  41 # End step
  42 # $1: step name
  43 define step_end
  44         $(foreach hook,$(GLOBAL_INSTRUMENTATION_HOOKS),$(call $(hook),end,$(1),$($(PKG)_NAME))$(sep))
  45 endef
  46
  47 #######################################
  48 # Actual steps hooks
  49
  50 # Time steps
  51 define step_time
  52         printf "%s:%-5.5s:%-20.20s: %s\n"           \
  53                "$$(date +%s)" "$(1)" "$(2)" "$(3)"  \
  54                >>"$(BUILD_DIR)/build-time.log"
  55 endef
  56 GLOBAL_INSTRUMENTATION_HOOKS += step_time
  57
  58 # Hooks to collect statistics about installed files
  59
  60 # This hook will be called before the target installation of a
  61 # package. We store in a file named .br_filelist_before the list of
  62 # files currently installed in the target. Note that the MD5 is also
  63 # stored, in order to identify if the files are overwritten.
  64 define step_pkg_size_start
  65         (cd $(TARGET_DIR) ; find . -type f -print0 | xargs -0 md5sum) | sort > \
  66                 $($(PKG)_DIR)/.br_filelist_before
  67 endef
  68
  69 # This hook will be called after the target installation of a
  70 # package. We store in a file named .br_filelist_after the list of
  71 # files (and their MD5) currently installed in the target. We then do
  72 # a diff with the .br_filelist_before to compute the list of files
  73 # installed by this package.
  74 define step_pkg_size_end
  75         (cd $(TARGET_DIR); find . -type f -print0 | xargs -0 md5sum) | sort > \
  76                 $($(PKG)_DIR)/.br_filelist_after
  77         comm -13 $($(PKG)_DIR)/.br_filelist_before $($(PKG)_DIR)/.br_filelist_after | \
  78                 while read hash file ; do \
  79                         echo "$(1),$${file}" >> $(BUILD_DIR)/packages-file-list.txt ; \
  80                 done
  81 endef
  82
  83 define step_pkg_size
  84         $(if $(filter install-target,$(2)),\
  85                 $(if $(filter start,$(1)),$(call step_pkg_size_start,$(3))) \
  86                 $(if $(filter end,$(1)),$(call step_pkg_size_end,$(3))))
  87 endef
  88 GLOBAL_INSTRUMENTATION_HOOKS += step_pkg_size
  89
  90 # This hook checks that host packages that need libraries that we build
  91 # have a proper DT_RPATH or DT_RUNPATH tag
  92 define check_host_rpath
  93         $(if $(filter install-host,$(2)),\
  94                 $(if $(filter end,$(1)),support/scripts/check-host-rpath $(3) $(HOST_DIR)))
  95 endef
  96 GLOBAL_INSTRUMENTATION_HOOKS += check_host_rpath
  97
  98 # User-supplied script
  99 ifneq ($(BR2_INSTRUMENTATION_SCRIPTS),)
 100 define step_user
 101         @$(foreach user_hook, $(BR2_INSTRUMENTATION_SCRIPTS), \
 102                 $(EXTRA_ENV) $(user_hook) "$(1)" "$(2)" "$(3)"$(sep))
 103 endef
 104 GLOBAL_INSTRUMENTATION_HOOKS += step_user
 105 endif
 106
 107 ################################################################################
 108 # Implicit targets -- produce a stamp file for each step of a package build
 109 ################################################################################
 110
 111 # Retrieve the archive
 112 $(BUILD_DIR)/%/.stamp_downloaded:
 113         $(foreach hook,$($(PKG)_PRE_DOWNLOAD_HOOKS),$(call $(hook))$(sep))
 114 # Only show the download message if it isn't already downloaded
 115         $(Q)for p in $($(PKG)_ALL_DOWNLOADS); do \
 116                 if test ! -e $(DL_DIR)/`basename $$p` ; then \
 117                         $(call MESSAGE,"Downloading") ; \
 118                         break ; \
 119                 fi ; \
 120         done
 121         $(foreach p,$($(PKG)_ALL_DOWNLOADS),$(call DOWNLOAD,$(p))$(sep))
 122         $(foreach hook,$($(PKG)_POST_DOWNLOAD_HOOKS),$(call $(hook))$(sep))
 123         $(Q)mkdir -p $(@D)
 124         $(Q)touch $@
 125
 126 # Unpack the archive
 127 $(BUILD_DIR)/%/.stamp_extracted:
 128         @$(call step_start,extract)
 129         @$(call MESSAGE,"Extracting")
 130         $(foreach hook,$($(PKG)_PRE_EXTRACT_HOOKS),$(call $(hook))$(sep))
 131         $(Q)mkdir -p $(@D)
 132         $($(PKG)_EXTRACT_CMDS)
 133 # some packages have messed up permissions inside
 134         $(Q)chmod -R +rw $(@D)
 135         $(foreach hook,$($(PKG)_POST_EXTRACT_HOOKS),$(call $(hook))$(sep))
 136         @$(call step_end,extract)
 137         $(Q)touch $@
 138
 139 # Rsync the source directory if the <pkg>_OVERRIDE_SRCDIR feature is
 140 # used.
 141 $(BUILD_DIR)/%/.stamp_rsynced:
 142         @$(call MESSAGE,"Syncing from source dir $(SRCDIR)")
 143         @test -d $(SRCDIR) || (echo "ERROR: $(SRCDIR) does not exist" ; exit 1)
 144         $(foreach hook,$($(PKG)_PRE_RSYNC_HOOKS),$(call $(hook))$(sep))
 145         rsync -au --chmod=u=rwX,go=rX $(RSYNC_VCS_EXCLUSIONS) $(call qstrip,$(SRCDIR))/ $(@D)
 146         $(foreach hook,$($(PKG)_POST_RSYNC_HOOKS),$(call $(hook))$(sep))
 147         $(Q)touch $@
 148
 149 # Patch
 150 #
 151 # The RAWNAME variable is the lowercased package name, which allows to
 152 # find the package directory (typically package/<pkgname>) and the
 153 # prefix of the patches
 154 #
 155 # For BR2_GLOBAL_PATCH_DIR, only generate if it is defined
 156 $(BUILD_DIR)/%/.stamp_patched: PATCH_BASE_DIRS =  $(PKGDIR)
 157 $(BUILD_DIR)/%/.stamp_patched: PATCH_BASE_DIRS += $(addsuffix /$(RAWNAME),$(call qstrip,$(BR2_GLOBAL_PATCH_DIR)))
 158 $(BUILD_DIR)/%/.stamp_patched:
 159         @$(call step_start,patch)
 160         @$(call MESSAGE,"Patching")
 161         $(foreach hook,$($(PKG)_PRE_PATCH_HOOKS),$(call $(hook))$(sep))
 162         $(foreach p,$($(PKG)_PATCH),$(APPLY_PATCHES) $(@D) $(DL_DIR) $(notdir $(p))$(sep))
 163         $(Q)( \
 164         for D in $(PATCH_BASE_DIRS); do \
 165           if test -d $${D}; then \
 166             if test -d $${D}/$($(PKG)_VERSION); then \
 167               $(APPLY_PATCHES) $(@D) $${D}/$($(PKG)_VERSION) \*.patch \*.patch.$(ARCH) || exit 1; \
 168             else \
 169               $(APPLY_PATCHES) $(@D) $${D} \*.patch \*.patch.$(ARCH) || exit 1; \
 170             fi; \
 171           fi; \
 172         done; \
 173         )
 174         $(foreach hook,$($(PKG)_POST_PATCH_HOOKS),$(call $(hook))$(sep))
 175         @$(call step_end,patch)
 176         $(Q)touch $@
 177
 178 # Check that all directories specified in BR2_GLOBAL_PATCH_DIR exist.
 179 $(foreach dir,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR)),\
 180         $(if $(wildcard $(dir)),,\
 181                 $(error BR2_GLOBAL_PATCH_DIR contains nonexistent directory $(dir))))
 182
 183 # Configure
 184 $(BUILD_DIR)/%/.stamp_configured:
 185         @$(call step_start,configure)
 186         @$(call MESSAGE,"Configuring")
 187         $(foreach hook,$($(PKG)_PRE_CONFIGURE_HOOKS),$(call $(hook))$(sep))
 188         $($(PKG)_CONFIGURE_CMDS)
 189         $(foreach hook,$($(PKG)_POST_CONFIGURE_HOOKS),$(call $(hook))$(sep))
 190         @$(call step_end,configure)
 191         $(Q)touch $@
 192
 193 # Build
 194 $(BUILD_DIR)/%/.stamp_built::
 195         @$(call step_start,build)
 196         @$(call MESSAGE,"Building")
 197         $(foreach hook,$($(PKG)_PRE_BUILD_HOOKS),$(call $(hook))$(sep))
 198         +$($(PKG)_BUILD_CMDS)
 199         $(foreach hook,$($(PKG)_POST_BUILD_HOOKS),$(call $(hook))$(sep))
 200         @$(call step_end,build)
 201         $(Q)touch $@
 202
 203 # Install to host dir
 204 $(BUILD_DIR)/%/.stamp_host_installed:
 205         @$(call step_start,install-host)
 206         @$(call MESSAGE,"Installing to host directory")
 207         $(foreach hook,$($(PKG)_PRE_INSTALL_HOOKS),$(call $(hook))$(sep))
 208         +$($(PKG)_INSTALL_CMDS)
 209         $(foreach hook,$($(PKG)_POST_INSTALL_HOOKS),$(call $(hook))$(sep))
 210         @$(call step_end,install-host)
 211         $(Q)touch $@
 212
 213 # Install to staging dir
 214 #
 215 # Some packages install libtool .la files alongside any installed
 216 # libraries. These .la files sometimes refer to paths relative to the
 217 # sysroot, which libtool will interpret as absolute paths to host
 218 # libraries instead of the target libraries. Since this is not what we
 219 # want, these paths are fixed by prefixing them with $(STAGING_DIR).
 220 # As we configure with --prefix=/usr, this fix needs to be applied to
 221 # any path that starts with /usr.
 222 #
 223 # To protect against the case that the output or staging directories or
 224 # the pre-installed external toolchain themselves are under /usr, we first
 225 # substitute away any occurrences of these directories with @BASE_DIR@,
 226 # @STAGING_DIR@ and @TOOLCHAIN_EXTERNAL_INSTALL_DIR@ respectively.
 227 #
 228 # Note that STAGING_DIR can be outside BASE_DIR when the user sets
 229 # BR2_HOST_DIR to a custom value. Note that TOOLCHAIN_EXTERNAL_INSTALL_DIR
 230 # can be under @BASE_DIR@ when it's a downloaded toolchain, and can be
 231 # empty when we use an internal toolchain.
 232 #
 233 $(BUILD_DIR)/%/.stamp_staging_installed:
 234         @$(call step_start,install-staging)
 235         @$(call MESSAGE,"Installing to staging directory")
 236         $(foreach hook,$($(PKG)_PRE_INSTALL_STAGING_HOOKS),$(call $(hook))$(sep))
 237         +$($(PKG)_INSTALL_STAGING_CMDS)
 238         $(foreach hook,$($(PKG)_POST_INSTALL_STAGING_HOOKS),$(call $(hook))$(sep))
 239         $(Q)if test -n "$($(PKG)_CONFIG_SCRIPTS)" ; then \
 240                 $(call MESSAGE,"Fixing package configuration files") ;\
 241                         $(SED)  "s,$(BASE_DIR),@BASE_DIR@,g" \
 242                                 -e "s,$(STAGING_DIR),@STAGING_DIR@,g" \
 243                                 -e "s,^\(exec_\)\?prefix=.*,\1prefix=@STAGING_DIR@/usr,g" \
 244                                 -e "s,-I/usr/,-I@STAGING_DIR@/usr/,g" \
 245                                 -e "s,-L/usr/,-L@STAGING_DIR@/usr/,g" \
 246                                 -e "s,@STAGING_DIR@,$(STAGING_DIR),g" \
 247                                 -e "s,@BASE_DIR@,$(BASE_DIR),g" \
 248                                 $(addprefix $(STAGING_DIR)/usr/bin/,$($(PKG)_CONFIG_SCRIPTS)) ;\
 249         fi
 250         @$(call MESSAGE,"Fixing libtool files")
 251         $(Q)find $(STAGING_DIR)/usr/lib* -name "*.la" | xargs --no-run-if-empty \
 252                 $(SED) "s:$(BASE_DIR):@BASE_DIR@:g" \
 253                         -e "s:$(STAGING_DIR):@STAGING_DIR@:g" \
 254                         $(if $(TOOLCHAIN_EXTERNAL_INSTALL_DIR),\
 255                                 -e "s:$(TOOLCHAIN_EXTERNAL_INSTALL_DIR):@TOOLCHAIN_EXTERNAL_INSTALL_DIR@:g") \
 256                         -e "s:\(['= ]\)/usr:\\1@STAGING_DIR@/usr:g" \
 257                         $(if $(TOOLCHAIN_EXTERNAL_INSTALL_DIR),\
 258                                 -e "s:@TOOLCHAIN_EXTERNAL_INSTALL_DIR@:$(TOOLCHAIN_EXTERNAL_INSTALL_DIR):g") \
 259                         -e "s:@STAGING_DIR@:$(STAGING_DIR):g" \
 260                         -e "s:@BASE_DIR@:$(BASE_DIR):g"
 261         @$(call step_end,install-staging)
 262         $(Q)touch $@
 263
 264 # Install to images dir
 265 $(BUILD_DIR)/%/.stamp_images_installed:
 266         @$(call step_start,install-image)
 267         $(foreach hook,$($(PKG)_PRE_INSTALL_IMAGES_HOOKS),$(call $(hook))$(sep))
 268         @$(call MESSAGE,"Installing to images directory")
 269         +$($(PKG)_INSTALL_IMAGES_CMDS)
 270         $(foreach hook,$($(PKG)_POST_INSTALL_IMAGES_HOOKS),$(call $(hook))$(sep))
 271         @$(call step_end,install-image)
 272         $(Q)touch $@
 273
 274 # Install to target dir
 275 $(BUILD_DIR)/%/.stamp_target_installed:
 276         @$(call step_start,install-target)
 277         @$(call MESSAGE,"Installing to target")
 278         $(foreach hook,$($(PKG)_PRE_INSTALL_TARGET_HOOKS),$(call $(hook))$(sep))
 279         +$($(PKG)_INSTALL_TARGET_CMDS)
 280         $(if $(BR2_INIT_SYSTEMD),\
 281                 $($(PKG)_INSTALL_INIT_SYSTEMD))
 282         $(if $(BR2_INIT_SYSV)$(BR2_INIT_BUSYBOX),\
 283                 $($(PKG)_INSTALL_INIT_SYSV))
 284         $(foreach hook,$($(PKG)_POST_INSTALL_TARGET_HOOKS),$(call $(hook))$(sep))
 285         $(Q)if test -n "$($(PKG)_CONFIG_SCRIPTS)" ; then \
 286                 $(RM) -f $(addprefix $(TARGET_DIR)/usr/bin/,$($(PKG)_CONFIG_SCRIPTS)) ; \
 287         fi
 288         @$(call step_end,install-target)
 289         $(Q)touch $@
 290
 291 # Remove package sources
 292 $(BUILD_DIR)/%/.stamp_dircleaned:
 293         rm -Rf $(@D)
 294
 295 ################################################################################
 296 # virt-provides-single -- check that provider-pkg is the declared provider for
 297 # the virtual package virt-pkg
 298 #
 299 # argument 1 is the lower-case name of the virtual package
 300 # argument 2 is the upper-case name of the virtual package
 301 # argument 3 is the lower-case name of the provider
 302 #
 303 # example:
 304 #   $(call virt-provides-single,libegl,LIBEGL,rpi-userland)
 305 ################################################################################
 306 define virt-provides-single
 307 ifneq ($$(call qstrip,$$(BR2_PACKAGE_PROVIDES_$(2))),$(3))
 308 $$(error Configuration error: both "$(3)" and $$(BR2_PACKAGE_PROVIDES_$(2))\
 309 are selected as providers for virtual package "$(1)". Only one provider can\
 310 be selected at a time. Please fix your configuration)
 311 endif
 312 endef
 313
 314 ################################################################################
 315 # inner-generic-package -- generates the make targets needed to build a
 316 # generic package
 317 #
 318 #  argument 1 is the lowercase package name
 319 #  argument 2 is the uppercase package name, including a HOST_ prefix
 320 #             for host packages
 321 #  argument 3 is the uppercase package name, without the HOST_ prefix
 322 #             for host packages
 323 #  argument 4 is the type (target or host)
 324 #
 325 # Note about variable and function references: inside all blocks that are
 326 # evaluated with $(eval), which includes all 'inner-xxx-package' blocks,
 327 # specific rules apply with respect to variable and function references.
 328 # - Numbered variables (parameters to the block) can be referenced with a single
 329 #   dollar sign: $(1), $(2), $(3), etc.
 330 # - pkgdir and pkgname should be referenced with a single dollar sign too. These
 331 #   functions rely on 'the most recently parsed makefile' which is supposed to
 332 #   be the package .mk file. If we defer the evaluation of these functions using
 333 #   double dollar signs, then they may be evaluated too late, when other
 334 #   makefiles have already been parsed. One specific case is when $$(pkgdir) is
 335 #   assigned to a variable using deferred evaluation with '=' and this variable
 336 #   is used in a target rule outside the eval'ed inner block. In this case, the
 337 #   pkgdir will be that of the last makefile parsed by buildroot, which is not
 338 #   the expected value. This mechanism is for example used for the TARGET_PATCH
 339 #   rule.
 340 # - All other variables should be referenced with a double dollar sign:
 341 #   $$(TARGET_DIR), $$($(2)_VERSION), etc. Also all make functions should be
 342 #   referenced with a double dollar sign: $$(subst), $$(call), $$(filter-out),
 343 #   etc. This rule ensures that these variables and functions are only expanded
 344 #   during the $(eval) step, and not earlier. Otherwise, unintuitive and
 345 #   undesired behavior occurs with respect to these variables and functions.
 346 #
 347 ################################################################################
 348
 349 define inner-generic-package
 350
 351 # Ensure the package is only declared once, i.e. do not accept that a
 352 # package be re-defined by a br2-external tree
 353 ifneq ($(call strip,$(filter $(1),$(PACKAGES_ALL))),)
 354 $$(error Package '$(1)' defined a second time in '$(pkgdir)'; \
 355         previous definition was in '$$($(2)_PKGDIR)')
 356 endif
 357 PACKAGES_ALL += $(1)
 358
 359 # Define default values for various package-related variables, if not
 360 # already defined. For some variables (version, source, site and
 361 # subdir), if they are undefined, we try to see if a variable without
 362 # the HOST_ prefix is defined. If so, we use such a variable, so that
 363 # this information has only to be specified once, for both the
 364 # target and host packages of a given .mk file.
 365
 366 $(2)_TYPE                       =  $(4)
 367 $(2)_NAME                       =  $(1)
 368 $(2)_RAWNAME                    =  $$(patsubst host-%,%,$(1))
 369 $(2)_PKGDIR                     =  $(pkgdir)
 370
 371 # Keep the package version that may contain forward slashes in the _DL_VERSION
 372 # variable, then replace all forward slashes ('/') by underscores ('_') to
 373 # sanitize the package version that is used in paths, directory and file names.
 374 # Forward slashes may appear in the package's version when pointing to a
 375 # version control system branch or tag, for example remotes/origin/1_10_stable.
 376 # Similar for spaces and colons (:) that may appear in date-based revisions for
 377 # CVS.
 378 ifndef $(2)_VERSION
 379  ifdef $(3)_DL_VERSION
 380   $(2)_DL_VERSION := $$($(3)_DL_VERSION)
 381  else ifdef $(3)_VERSION
 382   $(2)_DL_VERSION := $$($(3)_VERSION)
 383  else
 384   $(2)_DL_VERSION = undefined
 385  endif
 386 else
 387  $(2)_DL_VERSION := $$(strip $$($(2)_VERSION))
 388 endif
 389 $(2)_VERSION := $$(call sanitize,$$($(2)_DL_VERSION))
 390
 391 ifdef $(3)_OVERRIDE_SRCDIR
 392   $(2)_OVERRIDE_SRCDIR ?= $$($(3)_OVERRIDE_SRCDIR)
 393 endif
 394
 395 $(2)_BASE_NAME  =  $(1)-$$($(2)_VERSION)
 396 $(2)_DL_DIR     =  $$(DL_DIR)/$$($(2)_BASE_NAME)
 397 $(2)_DIR        =  $$(BUILD_DIR)/$$($(2)_BASE_NAME)
 398
 399 ifndef $(2)_SUBDIR
 400  ifdef $(3)_SUBDIR
 401   $(2)_SUBDIR = $$($(3)_SUBDIR)
 402  else
 403   $(2)_SUBDIR ?=
 404  endif
 405 endif
 406
 407 ifndef $(2)_STRIP_COMPONENTS
 408  ifdef $(3)_STRIP_COMPONENTS
 409   $(2)_STRIP_COMPONENTS = $$($(3)_STRIP_COMPONENTS)
 410  else
 411   $(2)_STRIP_COMPONENTS ?= 1
 412  endif
 413 endif
 414
 415 $(2)_SRCDIR                    = $$($(2)_DIR)/$$($(2)_SUBDIR)
 416 $(2)_BUILDDIR                  ?= $$($(2)_SRCDIR)
 417
 418 ifneq ($$($(2)_OVERRIDE_SRCDIR),)
 419 $(2)_VERSION = custom
 420 endif
 421
 422 ifndef $(2)_SOURCE
 423  ifdef $(3)_SOURCE
 424   $(2)_SOURCE = $$($(3)_SOURCE)
 425  else
 426   $(2)_SOURCE                   ?= $$($(2)_RAWNAME)-$$($(2)_VERSION).tar.gz
 427  endif
 428 endif
 429
 430 ifndef $(2)_PATCH
 431  ifdef $(3)_PATCH
 432   $(2)_PATCH = $$($(3)_PATCH)
 433  endif
 434 endif
 435
 436 $(2)_ALL_DOWNLOADS = \
 437         $$(foreach p,$$($(2)_SOURCE) $$($(2)_PATCH) $$($(2)_EXTRA_DOWNLOADS),\
 438                 $$(if $$(findstring ://,$$(p)),$$(p),\
 439                         $$($(2)_SITE)/$$(p)))
 440
 441 ifndef $(2)_SITE
 442  ifdef $(3)_SITE
 443   $(2)_SITE = $$($(3)_SITE)
 444  endif
 445 endif
 446
 447 ifndef $(2)_SITE_METHOD
 448  ifdef $(3)_SITE_METHOD
 449   $(2)_SITE_METHOD = $$($(3)_SITE_METHOD)
 450  else
 451         # Try automatic detection using the scheme part of the URI
 452         $(2)_SITE_METHOD = $$(call geturischeme,$$($(2)_SITE))
 453  endif
 454 endif
 455
 456 ifeq ($$($(2)_SITE_METHOD),local)
 457 ifeq ($$($(2)_OVERRIDE_SRCDIR),)
 458 $(2)_OVERRIDE_SRCDIR = $$($(2)_SITE)
 459 endif
 460 endif
 461
 462 ifndef $(2)_LICENSE
 463  ifdef $(3)_LICENSE
 464   $(2)_LICENSE = $$($(3)_LICENSE)
 465  endif
 466 endif
 467
 468 $(2)_LICENSE                    ?= unknown
 469
 470 ifndef $(2)_LICENSE_FILES
 471  ifdef $(3)_LICENSE_FILES
 472   $(2)_LICENSE_FILES = $$($(3)_LICENSE_FILES)
 473  endif
 474 endif
 475
 476 ifndef $(2)_REDISTRIBUTE
 477  ifdef $(3)_REDISTRIBUTE
 478   $(2)_REDISTRIBUTE = $$($(3)_REDISTRIBUTE)
 479  endif
 480 endif
 481
 482 $(2)_REDISTRIBUTE               ?= YES
 483
 484 # When a target package is a toolchain dependency set this variable to
 485 # 'NO' so the 'toolchain' dependency is not added to prevent a circular
 486 # dependency
 487 $(2)_ADD_TOOLCHAIN_DEPENDENCY   ?= YES
 488
 489 ifeq ($(4),host)
 490 $(2)_DEPENDENCIES ?= $$(filter-out host-skeleton host-toolchain $(1),\
 491         $$(patsubst host-host-%,host-%,$$(addprefix host-,$$($(3)_DEPENDENCIES))))
 492 endif
 493 ifeq ($(4),target)
 494 ifneq ($(1),skeleton)
 495 $(2)_DEPENDENCIES += skeleton
 496 endif
 497 ifeq ($$($(2)_ADD_TOOLCHAIN_DEPENDENCY),YES)
 498 $(2)_DEPENDENCIES += toolchain
 499 endif
 500 endif
 501
 502 # Eliminate duplicates in dependencies
 503 $(2)_FINAL_DEPENDENCIES = $$(sort $$($(2)_DEPENDENCIES))
 504 $(2)_FINAL_PATCH_DEPENDENCIES = $$(sort $$($(2)_PATCH_DEPENDENCIES))
 505 $(2)_FINAL_ALL_DEPENDENCIES = $$(sort $$($(2)_FINAL_DEPENDENCIES) $$($(2)_FINAL_PATCH_DEPENDENCIES))
 506
 507 $(2)_INSTALL_STAGING            ?= NO
 508 $(2)_INSTALL_IMAGES             ?= NO
 509 $(2)_INSTALL_TARGET             ?= YES
 510
 511 # define sub-target stamps
 512 $(2)_TARGET_INSTALL_TARGET =    $$($(2)_DIR)/.stamp_target_installed
 513 $(2)_TARGET_INSTALL_STAGING =   $$($(2)_DIR)/.stamp_staging_installed
 514 $(2)_TARGET_INSTALL_IMAGES =    $$($(2)_DIR)/.stamp_images_installed
 515 $(2)_TARGET_INSTALL_HOST =      $$($(2)_DIR)/.stamp_host_installed
 516 $(2)_TARGET_BUILD =             $$($(2)_DIR)/.stamp_built
 517 $(2)_TARGET_CONFIGURE =         $$($(2)_DIR)/.stamp_configured
 518 $(2)_TARGET_RSYNC =             $$($(2)_DIR)/.stamp_rsynced
 519 $(2)_TARGET_PATCH =             $$($(2)_DIR)/.stamp_patched
 520 $(2)_TARGET_EXTRACT =           $$($(2)_DIR)/.stamp_extracted
 521 $(2)_TARGET_SOURCE =            $$($(2)_DIR)/.stamp_downloaded
 522 $(2)_TARGET_DIRCLEAN =          $$($(2)_DIR)/.stamp_dircleaned
 523
 524 # default extract command
 525 $(2)_EXTRACT_CMDS ?= \
 526         $$(if $$($(2)_SOURCE),$$(INFLATE$$(suffix $$($(2)_SOURCE))) $$(DL_DIR)/$$($(2)_SOURCE) | \
 527         $$(TAR) --strip-components=$$($(2)_STRIP_COMPONENTS) \
 528                 -C $$($(2)_DIR) \
 529                 $$(foreach x,$$($(2)_EXCLUDES),--exclude='$$(x)' ) \
 530                 $$(TAR_OPTIONS) -)
 531
 532 # pre/post-steps hooks
 533 $(2)_PRE_DOWNLOAD_HOOKS         ?=
 534 $(2)_POST_DOWNLOAD_HOOKS        ?=
 535 $(2)_PRE_EXTRACT_HOOKS          ?=
 536 $(2)_POST_EXTRACT_HOOKS         ?=
 537 $(2)_PRE_RSYNC_HOOKS            ?=
 538 $(2)_POST_RSYNC_HOOKS           ?=
 539 $(2)_PRE_PATCH_HOOKS            ?=
 540 $(2)_POST_PATCH_HOOKS           ?=
 541 $(2)_PRE_CONFIGURE_HOOKS        ?=
 542 $(2)_POST_CONFIGURE_HOOKS       ?=
 543 $(2)_PRE_BUILD_HOOKS            ?=
 544 $(2)_POST_BUILD_HOOKS           ?=
 545 $(2)_PRE_INSTALL_HOOKS          ?=
 546 $(2)_POST_INSTALL_HOOKS         ?=
 547 $(2)_PRE_INSTALL_STAGING_HOOKS  ?=
 548 $(2)_POST_INSTALL_STAGING_HOOKS ?=
 549 $(2)_PRE_INSTALL_TARGET_HOOKS   ?=
 550 $(2)_POST_INSTALL_TARGET_HOOKS  ?=
 551 $(2)_PRE_INSTALL_IMAGES_HOOKS   ?=
 552 $(2)_POST_INSTALL_IMAGES_HOOKS  ?=
 553 $(2)_PRE_LEGAL_INFO_HOOKS       ?=
 554 $(2)_POST_LEGAL_INFO_HOOKS      ?=
 555
 556 # human-friendly targets and target sequencing
 557 $(1):                   $(1)-install
 558
 559 ifeq ($$($(2)_TYPE),host)
 560 $(1)-install:           $(1)-install-host
 561 else
 562 $(1)-install:           $(1)-install-staging $(1)-install-target $(1)-install-images
 563 endif
 564
 565 ifeq ($$($(2)_INSTALL_TARGET),YES)
 566 $(1)-install-target:            $$($(2)_TARGET_INSTALL_TARGET)
 567 $$($(2)_TARGET_INSTALL_TARGET): $$($(2)_TARGET_BUILD)
 568 else
 569 $(1)-install-target:
 570 endif
 571
 572 ifeq ($$($(2)_INSTALL_STAGING),YES)
 573 $(1)-install-staging:                   $$($(2)_TARGET_INSTALL_STAGING)
 574 $$($(2)_TARGET_INSTALL_STAGING):        $$($(2)_TARGET_BUILD)
 575 # Some packages use install-staging stuff for install-target
 576 $$($(2)_TARGET_INSTALL_TARGET):         $$($(2)_TARGET_INSTALL_STAGING)
 577 else
 578 $(1)-install-staging:
 579 endif
 580
 581 ifeq ($$($(2)_INSTALL_IMAGES),YES)
 582 $(1)-install-images:            $$($(2)_TARGET_INSTALL_IMAGES)
 583 $$($(2)_TARGET_INSTALL_IMAGES): $$($(2)_TARGET_BUILD)
 584 else
 585 $(1)-install-images:
 586 endif
 587
 588 $(1)-install-host:              $$($(2)_TARGET_INSTALL_HOST)
 589 $$($(2)_TARGET_INSTALL_HOST):   $$($(2)_TARGET_BUILD)
 590
 591 $(1)-build:             $$($(2)_TARGET_BUILD)
 592 $$($(2)_TARGET_BUILD):  $$($(2)_TARGET_CONFIGURE)
 593
 594 # Since $(2)_FINAL_DEPENDENCIES are phony targets, they are always "newer"
 595 # than $(2)_TARGET_CONFIGURE. This would force the configure step (and
 596 # therefore the other steps as well) to be re-executed with every
 597 # invocation of make.  Therefore, make $(2)_FINAL_DEPENDENCIES an order-only
 598 # dependency by using |.
 599
 600 $(1)-configure:                 $$($(2)_TARGET_CONFIGURE)
 601 $$($(2)_TARGET_CONFIGURE):      | $$($(2)_FINAL_DEPENDENCIES)
 602
 603 $$($(2)_TARGET_SOURCE) $$($(2)_TARGET_RSYNC): | dirs prepare
 604 ifeq ($$(filter $(1),$$(DEPENDENCIES_HOST_PREREQ)),)
 605 $$($(2)_TARGET_SOURCE) $$($(2)_TARGET_RSYNC): | dependencies
 606 endif
 607
 608 ifeq ($$($(2)_OVERRIDE_SRCDIR),)
 609 # In the normal case (no package override), the sequence of steps is
 610 #  source, by downloading
 611 #  depends
 612 #  extract
 613 #  patch
 614 #  configure
 615 $$($(2)_TARGET_CONFIGURE):      $$($(2)_TARGET_PATCH)
 616
 617 $(1)-patch:             $$($(2)_TARGET_PATCH)
 618 $$($(2)_TARGET_PATCH):  $$($(2)_TARGET_EXTRACT)
 619 # Order-only dependency
 620 $$($(2)_TARGET_PATCH):  | $$(patsubst %,%-patch,$$($(2)_FINAL_PATCH_DEPENDENCIES))
 621
 622 $(1)-extract:                   $$($(2)_TARGET_EXTRACT)
 623 $$($(2)_TARGET_EXTRACT):        $$($(2)_TARGET_SOURCE)
 624
 625 $(1)-depends:           $$($(2)_FINAL_DEPENDENCIES)
 626
 627 $(1)-source:            $$($(2)_TARGET_SOURCE)
 628
 629 $(1)-source-check:
 630         $$(foreach p,$$($(2)_ALL_DOWNLOADS),$$(call SOURCE_CHECK,$$(p))$$(sep))
 631
 632 $(1)-external-deps:
 633         @for p in $$($(2)_SOURCE) $$($(2)_PATCH) $$($(2)_EXTRA_DOWNLOADS) ; do \
 634                 echo `basename $$$$p` ; \
 635         done
 636 else
 637 # In the package override case, the sequence of steps
 638 #  source, by rsyncing
 639 #  depends
 640 #  configure
 641
 642 # Use an order-only dependency so the "<pkg>-clean-for-rebuild" rule
 643 # can remove the stamp file without triggering the configure step.
 644 $$($(2)_TARGET_CONFIGURE): | $$($(2)_TARGET_RSYNC)
 645
 646 $(1)-depends:           $$($(2)_FINAL_DEPENDENCIES)
 647
 648 $(1)-patch:             $(1)-rsync
 649 $(1)-extract:           $(1)-rsync
 650
 651 $(1)-rsync:             $$($(2)_TARGET_RSYNC)
 652
 653 $(1)-source:
 654
 655 $(1)-source-check:
 656         test -d $$($(2)_OVERRIDE_SRCDIR)
 657
 658 $(1)-external-deps:
 659         @echo "file://$$($(2)_OVERRIDE_SRCDIR)"
 660 endif
 661
 662 $(1)-show-version:
 663                         @echo $$($(2)_VERSION)
 664
 665 $(1)-show-depends:
 666                         @echo $$($(2)_FINAL_ALL_DEPENDENCIES)
 667
 668 $(1)-graph-depends: graph-depends-requirements
 669                         @$$(INSTALL) -d $$(GRAPHS_DIR)
 670                         @cd "$$(CONFIG_DIR)"; \
 671                         $$(TOPDIR)/support/scripts/graph-depends $$(BR2_GRAPH_DEPS_OPTS) \
 672                                 -p $(1) -o $$(GRAPHS_DIR)/$$(@).dot
 673                         dot $$(BR2_GRAPH_DOT_OPTS) -T$$(BR_GRAPH_OUT) \
 674                                 -o $$(GRAPHS_DIR)/$$(@).$$(BR_GRAPH_OUT) \
 675                                 $$(GRAPHS_DIR)/$$(@).dot
 676
 677 $(1)-all-source:        $(1)-source
 678 $(1)-all-source:        $$(foreach p,$$($(2)_FINAL_ALL_DEPENDENCIES),$$(p)-all-source)
 679
 680 $(1)-all-source-check:  $(1)-source-check
 681 $(1)-all-source-check:  $$(foreach p,$$($(2)_FINAL_ALL_DEPENDENCIES),$$(p)-all-source-check)
 682
 683 $(1)-all-external-deps: $(1)-external-deps
 684 $(1)-all-external-deps: $$(foreach p,$$($(2)_FINAL_ALL_DEPENDENCIES),$$(p)-all-external-deps)
 685
 686 $(1)-all-legal-info:    $(1)-legal-info
 687 $(1)-all-legal-info:    $$(foreach p,$$($(2)_FINAL_ALL_DEPENDENCIES),$$(p)-all-legal-info)
 688
 689 $(1)-dirclean:          $$($(2)_TARGET_DIRCLEAN)
 690
 691 $(1)-clean-for-reinstall:
 692 ifneq ($$($(2)_OVERRIDE_SRCDIR),)
 693                         rm -f $$($(2)_TARGET_RSYNC)
 694 endif
 695                         rm -f $$($(2)_TARGET_INSTALL_STAGING)
 696                         rm -f $$($(2)_TARGET_INSTALL_TARGET)
 697                         rm -f $$($(2)_TARGET_INSTALL_IMAGES)
 698                         rm -f $$($(2)_TARGET_INSTALL_HOST)
 699
 700 $(1)-reinstall:         $(1)-clean-for-reinstall $(1)
 701
 702 $(1)-clean-for-rebuild: $(1)-clean-for-reinstall
 703                         rm -f $$($(2)_TARGET_BUILD)
 704
 705 $(1)-rebuild:           $(1)-clean-for-rebuild $(1)
 706
 707 $(1)-clean-for-reconfigure: $(1)-clean-for-rebuild
 708                         rm -f $$($(2)_TARGET_CONFIGURE)
 709
 710 $(1)-reconfigure:       $(1)-clean-for-reconfigure $(1)
 711
 712 # define the PKG variable for all targets, containing the
 713 # uppercase package variable prefix
 714 $$($(2)_TARGET_INSTALL_TARGET):         PKG=$(2)
 715 $$($(2)_TARGET_INSTALL_STAGING):        PKG=$(2)
 716 $$($(2)_TARGET_INSTALL_IMAGES):         PKG=$(2)
 717 $$($(2)_TARGET_INSTALL_HOST):           PKG=$(2)
 718 $$($(2)_TARGET_BUILD):                  PKG=$(2)
 719 $$($(2)_TARGET_CONFIGURE):              PKG=$(2)
 720 $$($(2)_TARGET_RSYNC):                  SRCDIR=$$($(2)_OVERRIDE_SRCDIR)
 721 $$($(2)_TARGET_RSYNC):                  PKG=$(2)
 722 $$($(2)_TARGET_PATCH):                  PKG=$(2)
 723 $$($(2)_TARGET_PATCH):                  RAWNAME=$$(patsubst host-%,%,$(1))
 724 $$($(2)_TARGET_PATCH):                  PKGDIR=$(pkgdir)
 725 $$($(2)_TARGET_EXTRACT):                PKG=$(2)
 726 $$($(2)_TARGET_SOURCE):                 PKG=$(2)
 727 $$($(2)_TARGET_SOURCE):                 PKGDIR=$(pkgdir)
 728 $$($(2)_TARGET_DIRCLEAN):               PKG=$(2)
 729
 730 # Compute the name of the Kconfig option that correspond to the
 731 # package being enabled. We handle three cases: the special Linux
 732 # kernel case, the bootloaders case, and the normal packages case.
 733 ifeq ($(1),linux)
 734 $(2)_KCONFIG_VAR = BR2_LINUX_KERNEL
 735 else ifneq ($$(filter boot/% $(BR2_EXTERNAL)/boot/%,$(pkgdir)),)
 736 $(2)_KCONFIG_VAR = BR2_TARGET_$(2)
 737 else ifneq ($$(filter toolchain/% $(BR2_EXTERNAL)/toolchain/%,$(pkgdir)),)
 738 $(2)_KCONFIG_VAR = BR2_$(2)
 739 else
 740 $(2)_KCONFIG_VAR = BR2_PACKAGE_$(2)
 741 endif
 742
 743 # legal-info: declare dependencies and set values used later for the manifest
 744 ifneq ($$($(2)_LICENSE_FILES),)
 745 $(2)_MANIFEST_LICENSE_FILES = $$($(2)_LICENSE_FILES)
 746 endif
 747 $(2)_MANIFEST_LICENSE_FILES ?= not saved
 748
 749 # If the package declares _LICENSE_FILES, we need to extract it,
 750 # for overriden, local or normal remote packages alike, whether
 751 # we want to redistribute it or not.
 752 ifneq ($$($(2)_LICENSE_FILES),)
 753 $(1)-legal-info: $(1)-patch
 754 endif
 755
 756 # We only save the sources of packages we want to redistribute, that are
 757 # non-local, and non-overriden. So only store, in the manifest, the tarball
 758 # name of those packages.
 759 ifeq ($$($(2)_REDISTRIBUTE),YES)
 760 ifneq ($$($(2)_SITE_METHOD),local)
 761 ifneq ($$($(2)_SITE_METHOD),override)
 762 # Packages that have a tarball need it downloaded beforehand
 763 $(1)-legal-info: $(1)-source $$(REDIST_SOURCES_DIR_$$(call UPPERCASE,$(4)))
 764 endif
 765 endif
 766 endif
 767
 768 # If FOO_ACTUAL_SOURCE_TARBALL is explicitly defined, it means FOO_SOURCE is
 769 # indeed a binary (e.g. external toolchain) and FOO_ACTUAL_SOURCE_TARBALL/_SITE
 770 # point to the actual sources tarball. Use the actual sources for legal-info.
 771 # For most packages the FOO_SITE/FOO_SOURCE pair points to real source code,
 772 # so these are the defaults for FOO_ACTUAL_*.
 773 $(2)_ACTUAL_SOURCE_TARBALL ?= $$($(2)_SOURCE)
 774 $(2)_ACTUAL_SOURCE_SITE    ?= $$(call qstrip,$$($(2)_SITE))
 775
 776 # legal-info: produce legally relevant info.
 777 $(1)-legal-info:
 778 # Packages without a source are assumed to be part of Buildroot, skip them.
 779         $$(foreach hook,$$($(2)_PRE_LEGAL_INFO_HOOKS),$$(call $$(hook))$$(sep))
 780 ifneq ($$(call qstrip,$$($(2)_SOURCE)),)
 781
 782 # Save license files if defined
 783 # We save the license files for any kind of package: normal, local,
 784 # overridden, or non-redistributable alike.
 785 # The reason to save license files even for no-redistribute packages
 786 # is that the license still applies to the files distributed as part
 787 # of the rootfs, even if the sources are not themselves redistributed.
 788 ifeq ($$(call qstrip,$$($(2)_LICENSE_FILES)),)
 789         @$$(call legal-license-nofiles,$$($(2)_RAWNAME),$$(call UPPERCASE,$(4)))
 790         @$$(call legal-warning-pkg,$$($(2)_RAWNAME),cannot save license ($(2)_LICENSE_FILES not defined))
 791 else
 792         @$$(foreach F,$$($(2)_LICENSE_FILES),$$(call legal-license-file,$$($(2)_RAWNAME),$$(F),$$($(2)_DIR)/$$(F),$$(call UPPERCASE,$(4)))$$(sep))
 793 endif # license files
 794
 795 ifeq ($$($(2)_SITE_METHOD),local)
 796 # Packages without a tarball: don't save and warn
 797         @$$(call legal-warning-nosource,$$($(2)_RAWNAME),local)
 798
 799 else ifneq ($$($(2)_OVERRIDE_SRCDIR),)
 800         @$$(call legal-warning-nosource,$$($(2)_RAWNAME),override)
 801
 802 else
 803 # Other packages
 804
 805 ifeq ($$($(2)_REDISTRIBUTE),YES)
 806 ifneq ($$($(2)_ACTUAL_SOURCE_TARBALL),$$($(2)_SOURCE))
 807         $$(call DOWNLOAD,$$($(2)_ACTUAL_SOURCE_SITE)/$$($(2)_ACTUAL_SOURCE_TARBALL))
 808 endif
 809 # Copy the source tarball (just hardlink if possible)
 810         @cp -l $$(DL_DIR)/$$($(2)_ACTUAL_SOURCE_TARBALL) $$(REDIST_SOURCES_DIR_$$(call UPPERCASE,$(4))) 2>/dev/null || \
 811             cp $$(DL_DIR)/$$($(2)_ACTUAL_SOURCE_TARBALL) $$(REDIST_SOURCES_DIR_$$(call UPPERCASE,$(4)))
 812 endif # redistribute
 813
 814 endif # other packages
 815         @$$(call legal-manifest,$$($(2)_RAWNAME),$$($(2)_VERSION),$$($(2)_LICENSE),$$($(2)_MANIFEST_LICENSE_FILES),$$($(2)_ACTUAL_SOURCE_TARBALL),$$($(2)_ACTUAL_SOURCE_SITE),$$(call UPPERCASE,$(4)))
 816 endif # ifneq ($$(call qstrip,$$($(2)_SOURCE)),)
 817         $$(foreach hook,$$($(2)_POST_LEGAL_INFO_HOOKS),$$(call $$(hook))$$(sep))
 818
 819 # add package to the general list of targets if requested by the buildroot
 820 # configuration
 821 ifeq ($$($$($(2)_KCONFIG_VAR)),y)
 822
 823 # Ensure the calling package is the declared provider for all the virtual
 824 # packages it claims to be an implementation of.
 825 ifneq ($$($(2)_PROVIDES),)
 826 $$(foreach pkg,$$($(2)_PROVIDES),\
 827         $$(eval $$(call virt-provides-single,$$(pkg),$$(call UPPERCASE,$$(pkg)),$(1))$$(sep)))
 828 endif
 829
 830 # Ensure unified variable name conventions between all packages Some
 831 # of the variables are used by more than one infrastructure; so,
 832 # rather than duplicating the checks in each infrastructure, we check
 833 # all variables here in pkg-generic, even though pkg-generic should
 834 # have no knowledge of infra-specific variables.
 835 $(eval $(call check-deprecated-variable,$(2)_MAKE_OPT,$(2)_MAKE_OPTS))
 836 $(eval $(call check-deprecated-variable,$(2)_INSTALL_OPT,$(2)_INSTALL_OPTS))
 837 $(eval $(call check-deprecated-variable,$(2)_INSTALL_TARGET_OPT,$(2)_INSTALL_TARGET_OPTS))
 838 $(eval $(call check-deprecated-variable,$(2)_INSTALL_STAGING_OPT,$(2)_INSTALL_STAGING_OPTS))
 839 $(eval $(call check-deprecated-variable,$(2)_INSTALL_HOST_OPT,$(2)_INSTALL_HOST_OPTS))
 840 $(eval $(call check-deprecated-variable,$(2)_AUTORECONF_OPT,$(2)_AUTORECONF_OPTS))
 841 $(eval $(call check-deprecated-variable,$(2)_CONF_OPT,$(2)_CONF_OPTS))
 842 $(eval $(call check-deprecated-variable,$(2)_BUILD_OPT,$(2)_BUILD_OPTS))
 843 $(eval $(call check-deprecated-variable,$(2)_GETTEXTIZE_OPT,$(2)_GETTEXTIZE_OPTS))
 844 $(eval $(call check-deprecated-variable,$(2)_KCONFIG_OPT,$(2)_KCONFIG_OPTS))
 845
 846 PACKAGES += $(1)
 847
 848 ifneq ($$($(2)_PERMISSIONS),)
 849 PACKAGES_PERMISSIONS_TABLE += $$($(2)_PERMISSIONS)$$(sep)
 850 endif
 851 ifneq ($$($(2)_DEVICES),)
 852 PACKAGES_DEVICES_TABLE += $$($(2)_DEVICES)$$(sep)
 853 endif
 854 ifneq ($$($(2)_USERS),)
 855 PACKAGES_USERS += $$($(2)_USERS)$$(sep)
 856 endif
 857
 858 ifeq ($$($(2)_SITE_METHOD),svn)
 859 DL_TOOLS_DEPENDENCIES += svn
 860 else ifeq ($$($(2)_SITE_METHOD),git)
 861 DL_TOOLS_DEPENDENCIES += git
 862 else ifeq ($$($(2)_SITE_METHOD),bzr)
 863 DL_TOOLS_DEPENDENCIES += bzr
 864 else ifeq ($$($(2)_SITE_METHOD),scp)
 865 DL_TOOLS_DEPENDENCIES += scp ssh
 866 else ifeq ($$($(2)_SITE_METHOD),hg)
 867 DL_TOOLS_DEPENDENCIES += hg
 868 else ifeq ($$($(2)_SITE_METHOD),cvs)
 869 DL_TOOLS_DEPENDENCIES += cvs
 870 endif # SITE_METHOD
 871
 872 # $(firstword) is used here because the extractor can have arguments, like
 873 # ZCAT="gzip -d -c", and to check for the dependency we only want 'gzip'.
 874 # Do not add xzcat to the list of required dependencies, as it gets built
 875 # automatically if it isn't found.
 876 ifneq ($$(call suitable-extractor,$$($(2)_SOURCE)),$$(XZCAT))
 877 DL_TOOLS_DEPENDENCIES += $$(firstword $$(call suitable-extractor,$$($(2)_SOURCE)))
 878 endif
 879
 880 # Ensure all virtual targets are PHONY. Listed alphabetically.
 881 .PHONY: $(1) \
 882         $(1)-all-external-deps \
 883         $(1)-all-legal-info \
 884         $(1)-all-source \
 885         $(1)-all-source-check \
 886         $(1)-build \
 887         $(1)-clean-for-rebuild \
 888         $(1)-clean-for-reconfigure \
 889         $(1)-clean-for-reinstall \
 890         $(1)-configure \
 891         $(1)-depends \
 892         $(1)-dirclean \
 893         $(1)-external-deps \
 894         $(1)-extract \
 895         $(1)-graph-depends \
 896         $(1)-install \
 897         $(1)-install-host \
 898         $(1)-install-images \
 899         $(1)-install-staging \
 900         $(1)-install-target \
 901         $(1)-legal-info \
 902         $(1)-patch \
 903         $(1)-rebuild \
 904         $(1)-reconfigure \
 905         $(1)-reinstall \
 906         $(1)-rsync \
 907         $(1)-show-depends \
 908         $(1)-show-version \
 909         $(1)-source \
 910         $(1)-source-check
 911
 912 ifeq ($$(patsubst %/,ERROR,$$($(2)_SITE)),ERROR)
 913 $$(error $(2)_SITE ($$($(2)_SITE)) cannot have a trailing slash)
 914 endif
 915
 916 endif # $(2)_KCONFIG_VAR
 917 endef # inner-generic-package
 918
 919 ################################################################################
 920 # generic-package -- the target generator macro for generic packages
 921 ################################################################################
 922
 923 # In the case of target packages, keep the package name "pkg"
 924 generic-package = $(call inner-generic-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
 925 # In the case of host packages, turn the package name "pkg" into "host-pkg"
 926 host-generic-package = $(call inner-generic-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)
 927
 928 # :mode=makefile: