[mythtv] -march Use

[Janne Grunau]

On Sun, Mar 28, 2010 at 06:51:36AM -0700, Michael Papet wrote:
> Hi,
> 
> I built 0.22-release on a G3 iBook.  Attempting to run mythfrontend
> crashes out with an 'illegal instruction.'

Directly after the start or after starting playback. If it's the latter
it's probably an Altivec instrucction.

> Poking through the Dev list, it looks like it might be a qmake
> problem.  The stable version of Debian's qmake package has ppc+Mac(AKA
> Darwin), but no ppc+Linux.  So, I copied the definition out of a later
> qmake. 
> 
> Now, qmake has the option of 'linux-ppc-g++'.  I don't know two
> things.
> 
> 1. What would be the -march incantation?  "linux-ppc-g++"??  2. How to
> pass the -march=??? through the configure script.  I tried doing it
> with the cxxoptions and it just errors out.

a simple './configure --cpu=g3 ...' should be enough


HTH
Janne