Hey thanks a lot for the reply. I'm currently building 3.2.3 as i write this (gcc is
huge!). I've also modified my cflags to be much more aggressive. When i rebuild
world, this will most likely break things; do you comply/agree? Even though i'm now
using -Os instead of -O3, i've also included some other -fFLAGS. I'm sure some are
redundant (as implied by -march=pentium4).
Basically:
CFLAGS="-s -march=pentium4 -O2 -pipe -mfpmath=sse -msse -mmmx -fomit-frame-pointer
-frerun-cse-after-loop -frerun-loop-opt -fthread-jumps -fforce-addr
-falign-functions=4"
Not quite sure what is going to happen, but i'm building gcc 3.2.3 with these flags
right now, and all seems well ;-). Please feel free to
comment/flame/threaten-with-death/etc. Thanks!
Brett
On Wed, May 28, 2003 at 01:07:50AM +0100, Dhruba Bandopadhyay wrote:
> On Tue, 2003-05-27 at 23:21, Brett Campbell wrote:
> > Hello list,
> > i use a pentium4 chip, and, despite a stable system, have just learned of the
> > invalid sse2 cruft. i am in fear for my system's health, regardless of its
> > excellent performance :). I have read that gcc 3.2.3 has fixed this stuff, but i
> > was considering rebuilding the entire system with 3.3 (as the 3.2.3 branch has
> > ceased/closed).
> > has anyone tried or used 3.3 yet? what would be implications or undesired side
> > effects from rebuilding my system? is there direct confliction with glibc? i
> > doubt it. any suggestions from anyone who has more knowledge than i do would be
> > well appreciated :-)
>
> I use a P4 and recently suffered errors in the nature of compilation
> failures. On rebuilding with P3 cflags using 3.2.2 mysteriously those
> packages which were failing previously emerged perfectly. Right after
> rebuilding 3.2.3 was moved to testing tree so that's what I'm using
> now. It works fine and is known to fix P4 bugs.
>
> Regarding 3.3, having seen bugs.gentoo.org flooded with gcc 3.3 related
> problems not long back I would strongly suggest that you do not go for
> it yet. It is hardmasked for these reasons. From what I gather work is
> being done to smoothen the migration and in good time 3.3 will be moved
> to mainstream use.
>
> The wise move may be to wait for the 3.3 release to stabilise either on
> testing or stable and then rebuild although if you did rebuild with
> 3.2.3 that should be fine too.
>
>
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Brett Ryan Campbell
Systems Administrator, CAD Research Center
Cal Poly State University, San Luis Obispo, CA 93407
http://www.cadrc.calpoly.edu/frameset_content/content_about_us.html
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