Redhat 6.4 x64 doesn't work.
[root@rhel64 Linux]# ./hfss
### Warning: Red Hat Enterprise Linux 6.4 is newer than
all currently-supported versions.
Currently-supported Linux versions include:
- Red Hat Enterprise Linux v4 and v5 (both 64-bit PC)
- SuSE Linux Enterprise Server 10 and 11 (both 64-bit PC)
/apps/hfss/hfss14.0/Linux/.setup_runtime: line 532: 23339 Aborted (core dumped) "$@"