I've compiled the hfs_0.95-package from the stanford.edu site under a SuSE 6.2, kernel 2.2.10. First I got sa number of warnings, ended with a obviously not-properly-workung hfs.o - and then figured out that there is a patch to be applied. I did so - and after 2 screens full of compiling the machine stopped with this message:
I believe HFS support is included with kernel 2.2.X.
On an "out of the box" Redhat 6.0 system (kernel 2.2.5), I've just loaded the supplied hfs.o module using 'modprobe hfs.o' and mounted an HFS volume.
James Pearson