--- /usr/portage/eclass/vim-doc.eclass	2011-12-27 17:55:12.000000000 +0000
+++ /usr/portage/eclass/vim-doc.eclass	2012-08-10 11:59:33.992213549 +0100
@@ -56,6 +56,9 @@ 
 
 		# Re-create / install new links
 		if [[ -d $vimfiles/doc ]]; then
+			# Strip ROOT from the beginning of $vimfiles to support cross
+			# compilation.  Note that this is *not* EROOT.
+			vimfiles=/${vimfiles##$ROOT}
 			ln -s $vimfiles/doc/*.txt $d/doc 2>/dev/null
 		fi