> So you mean that GCC is essentially exactly the same code,
 > DOS, Unix, MSDOS, OS/2, and the only thing all these
 > different "ports" do is provide the C runtime library?

Yes.

 > In which case GCC is a very portable program, with knowledge of
 > 68020, SPARC, 80386 etc processors?  BFN.

It would be instructive if you had a look at it and built it yourself.  The
machine descriptions and the way in which the code generator is built
(before gcc itself can be) is intriguing. The folks building this mess sure
know what they're doing.

david

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SD®¯¬z-