#
  # Makefile.legacy - support for backward compatibility
  #
  # This file contains placeholders to detect backward-compatibility problems.
  # When a buildroot "API" feature is being deprecated, a rule should be added
  # here that issues an error when the old feature is used.
  #
  # This file is not included if BR2_DEPRECATED is selected, so it is possible
  # to bypass the errors (although that's usually a bad idea).
  
  ifeq ($(BR2_LEGACY),y)
  $(error "You have legacy configuration in your .config! Please check your configuration.")
  endif
  
  #
  # Legacy options from 2014.02
  #
  
  # The BUILDROOT_DL_DIR environment variable was renamed by BR2_DL_DIR. We
  # want to detect someone using the old variable, _except_ if also the new
  # variable was set. By the time we get here, however, we no longer have
  # access to the BR2_DL_DIR environment variable (because it has been overridden
  # by the .config inclusion). However, the environment variable (if defined) was
  # saved in DL_DIR, so we can use that.
  ifneq ($(BUILDROOT_DL_DIR),)
  ifneq ($(BUILDROOT_DL_DIR),$(DL_DIR))
  $(error "The BUILDROOT_DL_DIR environment variable was renamed to BR2_DL_DIR.")
  endif
  endif
  
  # If a script is using the deprecated BUILDROOT_CONFIG, make sure it fails.
  # Add some directories in front just in case someone used dirname on it.
  BUILDROOT_CONFIG_FAKE = /tmp/deprecated/The-BUILDROOT_CONFIG-environment-variable-was-renamed-to-BR2_CONFIG
  
  # Similar to above for BUILDROOT_CONFIG, but here we have no .config equivalent.
  ifneq ($(BUILDROOT_CONFIG),)
  ifneq ($(BUILDROOT_CONFIG),$(BR2_CONFIG))
  ifneq ($(BUILDROOT_CONFIG),$(BUILDROOT_CONFIG_FAKE))
  $(error "The BUILDROOT_CONFIG environment variable was renamed to BR2_CONFIG.")
  endif
  endif
  endif
  
  BUILDROOT_CONFIG = $(BUILDROOT_CONFIG_FAKE)
  export BUILDROOT_CONFIG
  
  #
  # Legacy options from 2012.08
  #
  
  host-pkg-config:
  	@$(call MESSAGE,host-pkg-config is replaced by host-pkgconf)
  	@$(call MESSAGE,please update your .mk files)
  	@false
  .PHONY: host-pkg-config
  
  #
  # Legacy options from 2012.05
  #
  GENTARGETS = $$(error The GENTARGETS macro no longer exists; use $$$$(eval $$$$(generic-package)) or $$$$(eval $$$$(host-generic-package)))
  AUTOTARGETS = $$(error The AUTOTARGETS macro no longer exists; use $$$$(eval $$$$(autotools-package)) or $$$$(eval $$$$(host-autotools-package)))
  CMAKETARGETS = $$(error The CMAKETARGETS macro no longer exists; use $$$$(eval $$$$(cmake-package)) or $$$$(eval $$$$(host-cmake-package)))