[gentoo-embedded] tar-1.26 not unpacking archives with symlinks?

[Ed W]

Hi, I'm hitting an error when trying to unpack archives with the 
recently unmasked tar-1.26.  Basically any symlinks in the archive 
trigger an "unknown file" error.  This prevents me using emerge -k 
amongst other things

I only see this on uclibc-0.9.33 based system, not on the build host 
which uses glibc amd64

Can anyone else repro this and shed any light on what the problem might 
be?  Problem in tar or uclibc?

Thanks

Ed W