Is that OK to borrow code from coreutils?

[H.J. Lu]

Hi,

libgfortran calls fork/exec /bin/chmod to parse argument to chmod.
Is that OK to borrow code from coreutils which implements /bin/chmod
to properly implement chmod? coreutils is under GPLv3 while libgfortran
is under GPLv2 + exception. Is that possible to get permission from
the FSF to borrow code from coreutils?

Thanks.


-- 
H.J.