scripts/mk/vendor.mk

   1 # This Makefile fragment (since dpkg 1.16.1) defines the following
   2 # vendor-related variables:
   3 #
   4 #   DEB_VENDOR: output of «dpkg-vendor --query Vendor».
   5 #   DEB_PARENT_VENDOR: output of «dpkg-vendor --query Parent» (can be empty).
   6 #
   7 # This Makefile fragment also defines a set of "dpkg_vendor_derives_from"
   8 # macros that can be used to verify if the current vendor derives from
   9 # another vendor. The unversioned variant defaults to the v0 version if
  10 # undefined or to the v1 version when on build API 1, otherwise it can be
  11 # defined explicitly to one of the versions or the versioned macros can be
  12 # used directly. The following are example usages:
  13 #
  14 # - dpkg_vendor_derives_from (since dpkg 1.16.1)
  15 #
  16 #   ifeq ($(shell $(call dpkg_vendor_derives_from,ubuntu)),yes)
  17 #     ...
  18 #   endif
  19 #
  20 # - dpkg_vendor_derives_from_v0 (since dpkg 1.19.3)
  21 #
  22 #   ifeq ($(shell $(call dpkg_vendor_derives_from_v0,ubuntu)),yes)
  23 #     ...
  24 #   endif
  25 #
  26 # - dpkg_vendor_derives_from_v1 (since dpkg 1.19.3)
  27 #
  28 #   dpkg_vendor_derives_from = $(dpkg_vendor_derives_from_v1)
  29 #   ifeq ($(call dpkg_vendor_derives_from,ubuntu),yes)
  30 #     ...
  31 #   endif
  32 #   ifeq ($(call dpkg_vendor_derives_from_v1,ubuntu),yes)
  33 #     ...
  34 #   endif
  35
  36 dpkg_datadir = $(srcdir)/mk
  37 include $(dpkg_datadir)/buildapi.mk
  38
  39 dpkg_late_eval ?= $(or $(value DPKG_CACHE_$(1)),$(eval DPKG_CACHE_$(1) := $(shell $(2)))$(value DPKG_CACHE_$(1)))
  40
  41 DEB_VENDOR = $(call dpkg_late_eval,DEB_VENDOR,dpkg-vendor --query Vendor)
  42 DEB_PARENT_VENDOR = $(call dpkg_late_eval,DEB_PARENT_VENDOR,dpkg-vendor --query Parent)
  43
  44 dpkg_vendor_derives_from_v0 = dpkg-vendor --derives-from $(1) && echo yes || echo no
  45 dpkg_vendor_derives_from_v1 = $(shell $(dpkg_vendor_derives_from_v0))
  46
  47 ifeq ($(call dpkg_build_api_ge,1),yes)
  48 dpkg_vendor_derives_from ?= $(dpkg_vendor_derives_from_v1)
  49 else
  50 dpkg_vendor_derives_from ?= $(dpkg_vendor_derives_from_v0)
  51 endif