use gpg to import debian-popcon.gpg

debian/control

@@ -2,7 +2,7 @@ Source: popularity-contest
 Section: misc
 Priority: optional
 Maintainer: Daniel Reurich <daniel@centurion.net.nz>
-Build-Depends: debhelper (>=5)
+Build-Depends: debhelper (>=5), gnupg
 Homepage: http://popcon.debian.org/
 Standards-Version: 3.9.5
 Vcs-Browser: https://git.devuan.org/devuan-packages/popularity-contest

debian/rules

@@ -8,6 +8,8 @@
 #export DH_VERBOSE=1
 
 build:
+	gpg --recv-keys 5BDF38A3
+	gpg --export 5BDF38A3 > debian-popcon.gpg
 	dh_testdir
 
 clean: