diff -ur portage_old/app-admin/eselect-python/eselect-python-20111108.ebuild portage/app-admin/eselect-python/eselect-python-20111108.ebuild
--- portage_old/app-admin/eselect-python/eselect-python-20111108.ebuild 2013-05-30 12:59:20.000000000 +0200
+++ portage/app-admin/eselect-python/eselect-python-20111108.ebuild     2013-06-01 01:00:54.000000000 +0200
@@ -52,7 +52,7 @@
 }

 src_compile() {
-       use prefix && append-flags -DEPREFIX='"\"'"${EPREFIX}"'\""'
+       { echo "${EPREFIX}" | grep '[^/]' || use prefix ; } && append-flags -DEPREFIX='"\"'"${EPREFIX}"'\""'
        econf || die
        emake || die
 }