http://zenwalk.pinguix.com/user-accounts/shingoku/libqalculate/source/ZENBUILD
http://zenwalk.pinguix.com/user-accounts/shingoku/libqalculate/source/build-libqalculate.sh
http://downloads.sourceforge.net/qalculate/libqalculate-0.9.7.tar.gz
