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Diffstat (limited to 'scripts/mk/vendor.mk')
| -rw-r--r-- | scripts/mk/vendor.mk | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/scripts/mk/vendor.mk b/scripts/mk/vendor.mk new file mode 100644 index 0000000..f7c61bf --- /dev/null +++ b/scripts/mk/vendor.mk @@ -0,0 +1,43 @@ +# This Makefile fragment (since dpkg 1.16.1) defines the following +# vendor-related variables: +# +# DEB_VENDOR: output of «dpkg-vendor --query Vendor». +# DEB_PARENT_VENDOR: output of «dpkg-vendor --query Parent» (can be empty). +# +# This Makefile fragment also defines a set of "dpkg_vendor_derives_from" +# macros that can be used to verify if the current vendor derives from +# another vendor. The unversioned variant defaults to the v0 version if +# undefined, which can be defined explicitly to one of the versions or the +# versioned macros can be used directly. The following are example usages: +# +# - dpkg_vendor_derives_from (since dpkg 1.16.1) +# +# ifeq ($(shell $(call dpkg_vendor_derives_from,ubuntu)),yes) +# ... +# endif +# +# - dpkg_vendor_derives_from_v0 (since dpkg 1.19.3) +# +# ifeq ($(shell $(call dpkg_vendor_derives_from_v0,ubuntu)),yes) +# ... +# endif +# +# - dpkg_vendor_derives_from_v1 (since dpkg 1.19.3) +# +# dpkg_vendor_derives_from = $(dpkg_vendor_derives_from_v1) +# ifeq ($(call dpkg_vendor_derives_from,ubuntu),yes) +# ... +# endif +# ifeq ($(call dpkg_vendor_derives_from_v1,ubuntu),yes) +# ... +# endif + +dpkg_late_eval ?= $(or $(value DPKG_CACHE_$(1)),$(eval DPKG_CACHE_$(1) := $(shell $(2)))$(value DPKG_CACHE_$(1))) + +DEB_VENDOR = $(call dpkg_late_eval,DEB_VENDOR,dpkg-vendor --query Vendor) +DEB_PARENT_VENDOR = $(call dpkg_late_eval,DEB_PARENT_VENDOR,dpkg-vendor --query Parent) + +dpkg_vendor_derives_from_v0 = dpkg-vendor --derives-from $(1) && echo yes || echo no +dpkg_vendor_derives_from_v1 = $(shell $(dpkg_vendor_derives_from_v0)) + +dpkg_vendor_derives_from ?= $(dpkg_vendor_derives_from_v0) |