compile glibc-2.2.5 with gcc-3.0.4 on ia64

[Jim Wilson]

This appears to be a known problem that was fixed for gcc 3.1.  There used
to be a bad interaction between the reorder-blocks optimization and the
dwarf2 output routines such that you could not have both.  This problem
affected multiple targets.  You can work around this by using either -g0
or -fno-reorder-blocks.

On IA-64, gcc 3.0 could not be used for glibc for multiple reasons, some IA-64
gcc specific, some generic gcc, and some generic glibc, so we never really
tried to make it work.  You will probably have better luck with gcc 3.1.

Jim