> 3. Update sparc-sun-solaris2.9 to sparc64-sun-solaris2.10? No strong opinion on the Solaris 9 -> Solaris 10 transition, but why switching to a 64-bit compiler? The 32-bit compiler is multilib by default on Solaris and AFAIK the vendor compiler is still 32-bit too.
-- Eric Botcazou