sparc64 built from jh branch

[Alexander E. Patrakov]

Jeremy Huntwork wrote:
>   * GCC need some compiler flags set for sparc64 - some packages will 
> fail otherwise. -mcpu=ultrasparc -mtune=ultrasparc works for my 
> processor. So, for chapter 5 and 6, set an environment variable of 
> CC="gcc f-mcpu=ultrasparc -mtune=ultrasparc".

Then it is a bug. GCC should be compiled so that it compiles for 
ultrasparc by default.

-- 
Alexander E. Patrakov