I am having a hard time to build the current glibc on RHEL 3/ia64. When I use the system compiler, "make check" failed in various places with both nptl and linuxthreads. Gcc 3.4 won't even build glibc on ia64. Gcc 3.3 Red Hat from CVS seems to OK with linuxthreads. What compilers and glibc configuration options are supported on ia64? H.J.