Toxic needs libpng

src/freedombone-app-tox

     fi
 
     # shellcheck disable=SC2086
-    cp $rootdir/usr/local/lib/libtoxcore* "$rootdir/usr/lib/"
+    cp -l $rootdir/usr/local/lib/libtoxcore* "$rootdir/usr/lib/"
     cp "${rootdir}${INSTALL_DIR}/toxcore/other/bootstrap_daemon/tox-bootstrapd.service" "$rootdir/etc/systemd/system/"
     sed -i 's|ExecStart=.*|ExecStart=/usr/local/bin/tox-bootstrapd --config /etc/tox-bootstrapd.conf|g' "$rootdir/etc/systemd/system/tox-bootstrapd.service"
     if [ "${rootdir}" ]; then
     if [ "${rootdir}" ]; then
         chroot "${rootdir}" apt-get -yq install libncursesw5-dev libconfig-dev libqrencode-dev
         chroot "${rootdir}" apt-get -yq install libcurl4-openssl-dev libvpx-dev libopenal-dev
-        chroot "${rootdir}" apt-get -yq install libqrencode-dev
+        chroot "${rootdir}" apt-get -yq install libqrencode-dev libpng-dev
     else
         apt-get -yq install libncursesw5-dev libconfig-dev libqrencode-dev
         apt-get -yq install libcurl4-openssl-dev libvpx-dev libopenal-dev
-        apt-get -yq install libqrencode-dev
+        apt-get -yq install libqrencode-dev libpng-dev
     fi
 
     TEMP_SCRIPT_NAME=fbtmp728353.sh