Date:	Wed, 17 May 2000 15:29:37 +0300 (IDT)
From:	Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender:	eliz AT is
To:	Norberto Alfredo Bensa <nbensa AT hotmail DOT com>
cc:	djgpp AT delorie DOT com
Subject:	Re: rebuilding libc...
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On Wed, 17 May 2000, Norberto Alfredo Bensa wrote:

> > > o    What are the best compiler options when rebuilding the standard
> > > libraries if I'm using a pentium II?
> > 
> > It depends on the version of Binutils that you have installed.  What
> > does "as --version" print?
> > 
> here it is. I compiled it my self....
> 
> GNU assembler 2.9.5

Then I think you should use the original gcc.opt from djlsr203.zip.  With 
Binutils 2.9.5.1, available from DJGPP sites, you could try higher 
alignment options (-malign-loops=4 -malign-loops=4 -malign-jumps=4), but 
I don't think your version of Binutils will support this correctly.

You could play with -mpentium instead of -m486, but I doubt if that will 
yield significant differences.

Anyway, it only makes sense to try to rebuild the library with more 
optimizations if you have evidence that some library functions consume a 
significant portion of the run time.  The profiler should show this.
Even if some function does need to be optimized, it is better to compile 
only that function with different optimization switches.

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