... not really a bug, but a small thing which could be annopying for the user who just wants to install and run ... After installing the sun-sparc binary, I tried to compile the HelloWorld example, and I was told that the "gmp" library could not be found. I then compiled the library on the directory fptools/ghc/rts/gmp and moved the file libgmp.a to a place that is in the search path of the linker (eg, /usr/local/lib/ghc-4.00). Then everything worked fine. Best wishes, Martin