Where to place compiler flags for world?

[Thomas Schlesinger <schlesinger@xxxxxxxxxxxxx>]

Hi,

I can place compiler flags for the kernel in my kernel configuration file. 
Where can I place compiler flags for "world"?

BTW: I've put this settings in my kernel conf (Pentium-M notebook):

options CPU_ENABLE_EST
CONF_FLAGS=-march-pentium-m -O2 -fomit-frame-pointer -pipe

Is there something problematic with them?

Thanks,
Thomas