--- R-3.0.2.ebuild	2014-02-10 21:55:52.336965965 +0000
+++ R-3.0.2.ebuild.orig	2014-02-10 21:25:07.946137603 +0000
@@ -131,14 +131,6 @@ src_prepare() {
 }
 
 src_configure() {
-	if use tk; then
-		myconf="--with-tcltk \
-				--with-tk-config=${EPREFIX}/usr/lib/tkConfig.sh \
-				--with-tcl-config=${EPREFIX}/usr/lib/tclConfig.sh";
-	else
-		myconf="--without-tcltk";
-	fi
-
 	econf \
 		--enable-byte-compiled-packages \
 		--enable-R-shlib \
@@ -147,7 +139,7 @@ src_configure() {
 		--with-system-bzlib \
 		--with-system-pcre \
 		--with-system-xz \
-		--with-blas="$($(tc-getPKG_CONFIG) --variable=libdir blas)" \
+		--with-blas="$($(tc-getPKG_CONFIG) --libs blas)" \
 		--docdir="${EPREFIX}/usr/share/doc/${PF}" \
 		rdocdir="${EPREFIX}/usr/share/doc/${PF}" \
 		$(use_enable nls) \
@@ -164,8 +156,8 @@ src_configure() {
 		$(use_with png libpng) \
 		$(use_with readline) \
 		$(use_with tiff libtiff) \
-		$(use_with X x) \
-		${myconf}
+		$(use_with tk tcltk) \
+		$(use_with X x)
 }
 
 src_compile() {