[gentoo-embedded] emerge --resume on cross target?

[Kfir Lavi]

Hi,
As you probably seen my latest post about ACE that have problems to compile
on the target.
I want to change the configure.ac file and continue the compilation using
the --resume(-r).
running 'i686-gentoo1-linux-gnu-emerge -r dev-libs/ace' starts all over
again, and doesn't continue the from where it left.
Is it possible to resume on a cross development?

Regards,
Kfir