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Message-ID:	<99B82AA9708ED0119B55006097125A001E5FEF@ifk63.mach.uni-karlsruhe.de>
From:	Heribert Dahms <heribert_dahms AT icon-gmbh DOT de>
To:	"'Dan Oelke'" <Dan DOT Oelke AT oelke DOT com>,
	"'cygwin AT sourceware DOT cygnus DOT com'"
	<cygwin AT sourceware DOT cygnus DOT com>,
	"'Raman Bakshi'" <raman_bakshi AT yahoo DOT com>
Subject:	RE: Optimizing code with cygwin gcc??
Date:	Sat, 31 Jul 1999 01:53:12 +0200
X-Priority:	3
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.0.1457.3)

Hi Dan,

cut&paste error: you trapped yourself 8-)

gcc -c obj1.c -O2
or
gcc -O2 -c obj1.c

Bye, Heribert (DAHMS AT ifk20 DOT mach DOT uni-karlsruhe DOT de)

> -----Original Message-----
> From:	Dan Oelke [SMTP:Dan DOT Oelke AT oelke DOT com]
> Sent:	Thursday, July 29, 1999 21:14
> To:	cygwin AT sourceware DOT cygnus DOT com; Raman Bakshi
> Subject:	Re: Optimizing code with cygwin gcc??
> 
> 
> [...]when i compile and link my code using
> >the -O1 or -O2 options i get get tons of error
> >messages during linking time ( gcc -o -O2 exe_name
> >obj1.o obj2.o).   [...]
> 
> To get rid of your error messages what you need to do is:
> 	gcc -o exe_name -O2 obj1.o obj2.o
> NOT
> 	gcc -o -O2 exe_name obj1.o obj2.o
> 
> But, that will not do any optimization, because that is 
> linking which won't do any real optimization. 
> What you need to do is change your compile line
> that creates the .o files to look like
> 	gcc -c -O2 obj1.c
> 
> Good luck!
> Dan
> 
> 
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