With this patch, we are pretty close.  However, there still seems to be

something wrong with the splitter.  I can make a working registerized

compiler if I set splitObjs=NO in build.mk, but it seems as if  

whatever is

wrong with ghc-split shouldn't be too hard to fix.

I've glanced at ghc-split.lprl, but on what files is it invoked? Can

I run it from the command line on a file and see check what comes out?

If you compile a module with

    ghc -v -keep-tmp-files

then you should see the commandline it is using, and it should leave the

files for you to examine, and rerun the commands on, afterwards.