Comment 5 for bug 393134

I have found somebody who has started packaging Squirrel some time ago, maybe you can try to build on this work.
The package looks decent, although a bit more work will be needed to get it accepted in Debian and Ubuntu repositories, and the version packaged is a bit old (3.0 instead of 3.2)

https://launchpad.net/~markus-tisoft/+archive/ppa