[Mono-list] Run ASP.Net 4.0 profile

[Abe Gillespie]

How do you instruct Mono to run the 4.0 profile for an ASP.Net MVC2
site?  I'm using the

MonoServerPath "/usr/local/mono/2.8/bin/mod-mono-server4"

directive but this doesn't seem to be enough.  During startup I get:
System.TypeLoadException: Could not load type
'System.Web.Routing.RouteCollection' from assembly 'System.Web,
Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'

I can't use this in the Web.config:
<compilation debug="true" targetFramework="4.0">
because the targetFramework attribute is not recognized.

I've also tried adding:
<add assembly="System.Web, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a" />
to the <compilation><assemblies> collection of the Web.config but this
doesn't seem to help either.

Now if I manually copy the gac's 4.0 System.Web assembly into the
site's bin then I can get a little further than the above stated error
but other badness happens.

Any ideas?

Thanks.
-Abe