[gentoo-dev] [RFC]flag-o-matic.eclass strip-flags change to support prefix

[Maxim Koltsov]

Hi,
During prefix bootstrap i noticed that strip-flags removes -L and -I
flags from *FLAGS while these flags are essential for prefix
bootstrapping. Therefore i propose a fix for strip-flags function to
make it preserve prefix-related flags. I have attached a patch, please
review it. It works for me, but I'm unsure how it will work with
spaces in ${EPREFIX}

Thanks,
Maxim.