http://zenwalk.pinguix.com/user-accounts/bip/EXTRA/g/pptp/ZENBUILD
http://zenwalk.pinguix.com/user-accounts/bip/EXTRA/g/pptp/build-pptp.sh
http://downloads.sourceforge.net/project/pptpclient/pptp/pptp-1.7.2/pptp-1.7.2.tar.gz
