use /usr/share/dpkg/pkg-info.mk

debian/changelog

@@ -3,6 +3,7 @@ cacert-boardvoting (0.6.0-2) UNRELEASED; urgency=medium
   * Add missing license reference
   * update for Debian buster
   * update to debhelper 12
+  * use /usr/share/dpkg/pkg-info.mk
 
  -- Jan Dittberner <jandd@cacert.org>  Mon, 12 Aug 2019 19:57:13 +0200
 

debian/rules

@@ -1,16 +1,16 @@
 #!/usr/bin/make -f
 
-%:
-	dh $@
-
 DEB_BUILD_MAINT_OPTIONS = hardening=+all
+DEB_BUILD_OPTIONS = nostrip
 DPKG_EXPORT_BUILDFLAGS = 1
 include /usr/share/dpkg/buildflags.mk
+include /usr/share/dpkg/pkg-info.mk
 
-DEB_VERSION=$(shell dpkg-parsechangelog -S Version)
+%:
+	dh $@
 
 override_dh_auto_build:
 	GOCACHE=$(CURDIR)/tmp/.cache \
 	GOPATH=$(CURDIR)/tmp/gocode \
 	go get -u -v github.com/shulhan/go-bindata/cmd/go-bindata ; \
-	PATH=$(CURDIR)/tmp/gocode/bin:$(PATH) make GOCACHE=$(CURDIR)/tmp/.cache GOPATH=$(CURDIR)/tmp/gocode VERSION=$(DEB_VERSION)
+	PATH=$(CURDIR)/tmp/gocode/bin:$(PATH) $(MAKE) GOCACHE=$(CURDIR)/tmp/.cache GOPATH=$(CURDIR)/tmp/gocode VERSION=$(DEB_VERSION)