Update

drone.yml

     # 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 
+    # BINARIES for PREFIX: 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:
     - NAME="${DRONE_REPO_NAME}" ;