scripts/mk/architecture.mk

   1 # This Makefile fragment (since dpkg 1.16.1) defines all the DEB_HOST_* and
   2 # DEB_BUILD_* variables that dpkg-architecture can return. Existing values
   3 # of those variables are preserved as per policy.
   4 # All variables are exported.
   5 #
   6 # Note:
   7 # - Only documented variables are considered public interfaces.
   8 # - Expects to be included from the source tree root directory.
   9
  10 ifndef dpkg_architecture_mk_included
  11 dpkg_architecture_mk_included = yes
  12
  13 dpkg_lazy_eval ?= $$(if $$(filter undefined,$$(flavor DPKG_CACHE_$(1))),$$(eval DPKG_CACHE_$(1) := $$(shell $(2)))$$(value DPKG_CACHE_$(1)),$$(value DPKG_CACHE_$(1)))
  14
  15 dpkg_architecture_setvar = export $(1) ?= $(call dpkg_lazy_eval,$(1),dpkg-architecture -q$(1))
  16
  17 $(foreach machine,BUILD HOST TARGET,\
  18   $(foreach var,ARCH ARCH_ABI ARCH_LIBC ARCH_OS ARCH_CPU ARCH_BITS ARCH_ENDIAN GNU_CPU GNU_SYSTEM GNU_TYPE MULTIARCH,\
  19     $(eval $(call dpkg_architecture_setvar,DEB_$(machine)_$(var)))))
  20
  21 endif # dpkg_architecture_mk_included