Building GCC 4.3.3 for the ARM processor.

[Vincent Forbes]

I am trying to build an eabi cross tool-chain for the arm using
version 4.3.3.  I noticed from earlier mailing list posts that the
configuration flag --disable-libunwind-exceptions is not working as
intended and that --without-system-unwind is the preferred flag.  I
wonder what is the change in the GCC build between the two flags.  If
the host system does not contain the stock libunwind, then does gcc
use its defaults and does this --without flag explicitly tell GCC to
use its version of libunwind?

Also, some colleagues of mine are running into problems when linking
compiling with optimization turned on.  After a check, I suspect that
the option --enable-target-optspace is compiling libgcc with space
optimization and any program linking to it will cause errors.  The
make check output also fails in tests where optimization is turned on.

V. Forbes