I too am running redhat 9 & I have all my system components work correctly on a A7N8X Deluxe board with an Athlon XP 2400+ chip, with the exception of USB. When I try to install the latest drivers using the correct form:
rpmbuild --rebuild <nforce-src.rpm file>
I get the same compile error.....
The code seems buggy or is not designed for the new libs available in redhat 9.
Who said hashing was easy?