Transient environment with standard functions

[Matthew Keeter]

I’m trying to generate a temporary, transient environment that a useful set of 
functions in it.

The use case is eval’ing a set of small code strings.  Each environment needs 
to be
independent, so previous eval’s don’t leave anything in the environment.

I can make a dummy environment with (null-environment 5), but it’s missing 
everything
useful.  Calling (scheme-report-environment 5) gives me a useful environment, 
but the
environment is shared (so effects from one eval can carry over, which is 
undesirable).

Any pointers?  (resolve-module) seems like it could be useful, but the 
#:version argument
doesn’t seem to work.

Thanks,
Matt