Installing elfspe2 solved compile problems

I used to have problems compiling Geoff's spe samples. But now I'm suddenly able to compile them without errors. The only things I have installed since my last failed attempt is 'ed' and 'elfspe2'. Let's assume elfspe2 is the solution until proven otherwise. I found an interesting thread when browsing cell forums on ibm yesterday that suggested you'll have to install elfspe2 manually. So here's what I did:

wget http://www.bsc.es/projects/deepcomputing/linuxoncell/cellsimulator/sdk2.1/elfspe2-2.1.0-0.ppc.rpm
rpm -Ivh elfspe2-2.1.0-0.ppc.rpm