From: Brian Candler Date: 2010-08-13T23:14:22+09:00 Subject: Re: libstdc++ OK, probably missing headers as Daniel said. Try: apt-cache search stdc++ | grep dev On my 10.04 box I have libstdc++6-4.4-dev, but it may be different for you. Note that Ubuntu 7.10 went end-of-life in April 2009, so you really need to upgrade that box. You won't be getting any critical security updates. https://wiki.ubuntu.com/Releases A single upgrade to 8.04 will get you support until April next year, and from there you can upgrade directly to 10.04. Regards, Brian. -- Posted via http://www.ruby-forum.com/.