Well speaking for myself, I have been able to compile (and bootstrap) GNAT
since version 1.x. This is not hard at all if you follow the instructions.
I've been
using -O2 to build GNAT itself and I've never experienced any problem...

I've done this under Solaris and SUN-OS so maybe HPUX is not as easy but
the instructions given by ACT was correct, so why should they gave us
wrong
instructions for HPUX ? Anyway they provide a binary distribution for HPUX
so
they were able to build it no !

Pascal.
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