Using tar instead of aunpack.

cp-to-solution.sh

@@ -44,7 +44,7 @@ function copy_to_ttc() {(
 
   # ensure directory exists and unpack into it
   mkdir -p ../ttc2018liveContest/solutions/$name
-  aunpack -q solve/build/distributions/solve-1.0-SNAPSHOT.tar solve-1.0-SNAPSHOT/bin/ solve-1.0-SNAPSHOT/lib/ -X ../ttc2018liveContest/solutions/$name/
+  tar -xf solve/build/distributions/solve-1.0-SNAPSHOT.tar -C ../ttc2018liveContest/solutions/$name/ solve-1.0-SNAPSHOT/bin/ solve-1.0-SNAPSHOT/lib/
 
   # cp solution.ini
   cp solution.ini ../ttc2018liveContest/solutions/$name/