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

[Garrett Cooper]

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