now "make" produces a tarball but still incomplete yet.

util/get-tarball

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+root=$(readlink -f -- "$(dirname -- "$0")/..")
+work=$root/work
+
+if [ ! -d $work ]; then
+    mkdir $work || exit 1
+fi
+
+url=$1
+outfile=$3
+cachefile=$work/$outfile
+if [ -s $cachefile ]; then
+    cp $work/$outfile $outfile || exit 1
+else
+    wget --no-check-certificate $1 -O $3 || exit 1
+    if [ $? == 0 ]; then
+        cp $3 $work/ || exit 1
+    fi
+fi
+