For optimizing for i686, VDrift has an option for turning on the "-march=..." flag on the compiler. If you run
it tells you the usage is:
Code:
Type: 'scons' to compile with the default options.
'scons arch=axp' to compile for Athlon XP support (other options: a64, p4, x86)
...
So, you probably want to use it like this:
while someone with an Athlon XP would do
or someone with an Athlon64 would do
Does that help?
If there is something else to be turned on besides "-march=pentium4" then let me know and I can help you out.
By the way I'm not sure if this made it into the last release, but I think you're using SVN anyway right?