Update

drone.yml

     event: [ push, tag ]
   depends_on: [ clone, prepare ]
   environment:
-    MAKEFLAGS: -j2
+    MAKEFLAGS: -j2 -release
     # https://wiki.debian.org/CrossCompiling#Building_with_dpkg-buildpackage
     # https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
     # https://www.gnu.org/software/make/manual/html_node/Catalogue-of-Rules.html#Catalogue-of-Rules
     # addr2line ar as c++filt cpp cpp-6 dwp elfedit g++ g++-6 gcc gcc-6 gcc-ar gcc-ar-6 gcc-nm gcc-nm-6 gcc-ranlib gcc-ranlib-6 gcov gcov-6 gcov-dump gcov-dump-6 gcov-tool gcov-tool-6 gprof ld ld.bfd ld.gold nm objcopy objdump ranlib readelf size strings strip 
     BUILD_ARCH: amd64 armhf # amd64 arm64 armel armhf i386 mips mips64el mipsel powerpc ppc64el s390x
   commands:
-    - HOST_ARCH="amd64" ;
-      NAME="${DRONE_REPO_NAME}" ;
+    - NAME="${DRONE_REPO_NAME}" ;
       VERSION="$(git describe --always)" ;
       if test -d "debian" ; then
         VERSION=$(dpkg-parsechangelog -SVersion | sed 's/-.*//') ;
           s390x)    PREFIX="s390x-linux-gnu-"         ;;
           *)        PREFIX=""                         ;;
         esac ;
-        if test "$${ARCH}" = "$${HOST_ARCH}" ; then
-          PREFIX="" ; 
+        if test "$${ARCH}" = "$(dpkg --print-architecture)" ; then
+          PREFIX="" ;
+        else
+          export CONFIG_SITE="/etc/dpkg-cross/cross-config.$${ARCH}" ;
         fi ;
         export CC="$${PREFIX}gcc" ;
         export CXX="$${PREFIX}g++" ;
         export LD="$${PREFIX}ld" ;
         export STRIP="$${PREFIX}strip" ;
         export MAKEFLAGS="$${MAKEFLAGS}" ;
-        export CONFIG_SITE="/etc/dpkg-cross/cross-config.$${PKG_ARCH}" ;
         mkdir -p "$${BUILD_DIR}" ;
         cd "$${BUILD_DIR}" ;
         tar -xf "$${SRC_DIR}/$${RELEASE_DIR}/$${ARCHIVE_NAME}.orig.tar.xz"