Build errors on Linux gcc 4.1.2 system

[Josh Stern]

Hi,

I'm trying to build gdc-0.1.9 with the gcc 4.0.3 sources, but 
with gcc (and g++) 4.1.2 installed as the system compiler.  The
build fails in configure for libphobos because it is somehow trying to use
the system libstdc++ from /usr/lib instead of the one built from the gcc
4.0.3 sources.   Can anyone suggest how to fix this configure script
appropriately?

Also, te build of the D compiler itself succeeds, but with some fairly
hideous warning messages while doing so.   Is that normal?