[AMD64] X.org build eats all the memory when compiled with GCC 4.2

[Kris Kennaway]

On Mon, Jun 18, 2007 at 08:40:30AM -0400, Daniel Eischen wrote:
> On Mon, 18 Jun 2007, Michiel Boland wrote:
> 
> >On Sat, 16 Jun 2007, Garrett Cooper wrote:
> >
> >>Claus Guttesen wrote:
> >>>>I recompiled X.org yesterday and hit the following problem
> >>>>(1 week old -current, yesterdays packages, AMD64) -- when compiling
> >>>>files in
> >>>>/usr/ports/x11-servers/xorg-server/work/xorg-server-1.2.0/hw/xfree86/scanpci 
> >>>>directory, there are huge .h files - about 4mb. when compiler uses -O2
> >>>>or -O option it eats all available memory and then gets killed by the
> >>>>system.
> >>>>Without -O/O2 option compile works just as expected.
> >>>>
> >>>>Now -- should I file a PR or it's known bug?
> >>>
> >>>No, but you  should read the archives. Requires more than 1 GB of swap.
> >>>
> >>It's a known bug that isn't going to be fixed until gcc 4.2.1.
> >>-Garrett
> >>
> >
> >Well, until then, is it not possible to at least put the following patch 
> >in ports/x11-servers/xorg-server/files:
> 
> [ ... ]
> 
> >That would make a lot of people very happy. In particular those running 
> >amd64.
> 
> Yes, it happens on i386 too.  I think requiring more than 1GB of swap
> is ridiculous.  Please patch gcc or the port.

You can test the new gcc snapshot here:

  http://people.freebsd.org/~kan/contrib-gcc421.tar.gz

Just extract it over the top of /usr/src and rebuild world.  Please
confirm that it helps with this problem.

Kris
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