[Libreoffice] "bad value (atom) for -mtune= switch" on boostrap build

[Caolán McNamara]

On Sat, 2010-12-04 at 16:52 -0600, Norbert Thiebaud wrote:
> apparently  -mtune=atom require gcc 4.5.

uh huh, fair enough. I've tweaked things to try and use the version
number as the default ARCH_FLAGS for this now. Does that break things
again, or continue to work ?

C.