Index: mpfr-3.1.2-r1.ebuild
===================================================================
RCS file: /var/cvsroot/gentoo-x86/dev-libs/mpfr/mpfr-3.1.2-r1.ebuild,v
--- mpfr-3.1.2-r1.ebuild	13 Sep 2013 18:32:04 -0000	1.1
+++ mpfr-3.1.2-r1.ebuild	18 Oct 2013 07:04:24 -0000
@@ -45,9 +45,9 @@ 
 
 src_configure() {
 	econf \
-		--docdir="${EPREFIX}"/usr/share/doc/${PF} \
-		--with-gmp-lib="${EPREFIX}"/usr/$(get_libdir) \
-		--with-gmp-include="${EPREFIX}"/usr/include \
+		--docdir="${EROOT}"usr/share/doc/${PF} \
+		--with-gmp-lib="${EROOT}"usr/$(get_libdir) \
+		--with-gmp-include="${EROOT}"usr/include \
 		$(use_enable static-libs static)
 }