Without --enable-simd compilation succeeds - maybe my CPU doesn't support SIMD? My CPU is an AMD Athlon XP (1600+ I think).
I don't know exactly about your CPU, but the compilation error is unrelated to that (and shouldn't happen). Which gcc version are you using?
$ gcc --version gcc (GCC) 3.2.2 20030222 (Red Hat Linux 3.2.2-5) Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
this error should be unrelated to the gcc version. gcc can only assign xmm registers, if it is sure, you are on a specific machine ... for that you _have_ to use -march= flags covering your machine. i added an --enable-optimize=athlon-xp feature, that does this for you ... should be in cvs, soon ...
cheers ... tim