[Fluxus] stack smashing detected error

[Joel Matthys]

Hello. I just built from source on Ubuntu 15.04 with racket 6.2.1. 
Everything builds correctly but when I launch I get

/usr/local/share/racket/collects
Welcome to fluxus.
Type (help) for info.
*** stack smashing detected ***: fluxus terminated

I built it Sunday on a similar machine with no problems, so I don't know 
what's up with this.

Joel