[racket] build error from 5.1.2 on i686-pc-linux-gnu

At Fri, 05 Aug 2011 10:13:21 +0200, Marco Maggi wrote:
> Sorry, I  notice now  that Racket's build  infrastructure is
> picking  the file "stxparam.rkt"  from an  already installed
> Racket.   So  is  this  my  problem  (I  must  make  already
> installed Rackets "invisible") or a Racket problem?

Are the installed files being found through a PLTCOLLECTS environment
variable? I can see how that might interfere with the build, and
probably the build should turn off PLTCOLLECTS to avoid interference.

Or is the installation being found some other way?