Date:	Sun, 15 Jan 1995 16:09:56 -0500 (CDT)
From:	Aaron Ucko <UCKO AT VAX1 DOT ROCKHURST DOT EDU>
Subject:	Re: gcc = gcc -O2 ?
To:	eliz AT is DOT elta DOT co DOT il
Cc:	djgpp AT sun DOT soe DOT clarkson DOT edu
Organization:	Rockhurst College; Kansas City, MO

>> This came up because someone thought that most PC compilers, by
>> default, optimized, so gcc should also.
>
>I don't think this is so.  What compilers are these?
At least TC and QC; presumably others also exhibit this behavior.
Of course, their optimization is rather minimal...and both require
the equivalent of -O2 (which, at least in TC's case, can be slightly
dangerous) to be manually specified; both, therefore, could be said
to default to -O1.

>> Should -g imply -O0 as the default?
>
>Again, no, IMO.  Except of the compatibility reason above,
>this also requires one more thing to remember.
OK, I give in on this point.

--- Aaron Ucko (ucko AT vax1 DOT rockhurst DOT edu; finger for PGP public key) -=- httyp!
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