Compilation of axiom fails on slackware64 (current) because in glibc-2.14 support of rpc has been suppressed.
The problem is with gcl-2.6.8pre4 (and maybe after).
To have rpc support the library "libtiprc" must be installed, but then at the link stage "-ltirpc" should be added.
This is apparently not checked in the configure script in gcl-2.6.8pre4.