rules: Import architecture.mk.

debian/changelog

@@ -9,6 +9,7 @@ freeipa (4.8.4-1) UNRELEASED; urgency=medium
   * write-out-only-one-cert-per-file.diff: Fix writing CA cert to file.
   * tests: Make failure an actual failure again, and dump only last 2000
     lines on failure, also from ipaclient log.
+  * rules: Import architecture.mk.
 
  -- Timo Aaltonen <tjaalton@debian.org>  Thu, 28 Nov 2019 15:07:31 +0200
 

debian/rules

@@ -3,8 +3,8 @@
 # Uncomment this to turn on verbose mode.
 #export DH_VERBOSE=1
 
+include /usr/share/dpkg/architecture.mk
 include /usr/share/dpkg/pkg-info.mk
-DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
 
 # build server only where nodejs is available
 ifneq (,$(filter $(DEB_HOST_ARCH), amd64 arm64 armhf i386 mips mips64el mipsel ppc64 ppc64el s390x))