[yocto] Tuning gcc for Geode LX

[Mauro Ziliani]

Hi all.

I nee to disable all SIMD mmx sse extensions for the  GCC use to build 
the final image, containing Qt5 libraries

Now I have  tuned qtbase_git.bb by PACKAGECONFIG_CONFARGS adding the  
configure's parameters to disable MMX extensions.

But I need to disable this extensions for every package that can use MMX.


So my desire is to produce a gcc compiler that does'nt supports MMX.


I create  a machine/geode.conf with

DEFAULTTUNE="i586"

include conf/machine/include/tune-i586.inc

But I don't find how to customize the gcc/g++ parameters to disable SIMD 
extensions.


Any idea?


MZ