--- lapack-atlas-3.8.0.ebuild	2010-07-02 01:07:12.047791548 -0600
+++ lapack-atlas-3.8.0-r1.ebuild	2010-07-02 00:55:01.684533837 -0600
@@ -35,12 +35,12 @@
 
 FORTRAN="g77 gfortran ifc"
 
-S="${WORKDIR}/ATLAS"
-S_LAPACK="${WORKDIR}/${L_PN}-lite-${L_PV}"
-BLD_DIR="${S}/gentoo-build"
-RPATH="${DESTTREE}/$(get_libdir)/${L_PN}/${MY_PN}"
-
 src_unpack() {
+	S="${WORKDIR}/ATLAS"
+	S_LAPACK="${WORKDIR}/${L_PN}-lite-${L_PV}"
+	BLD_DIR="${S}/gentoo-build"
+	RPATH="${DESTTREE}/$(get_libdir)/${L_PN}/${MY_PN}"
+
 	unpack ${A}
 
 	cd "${S}"
@@ -60,8 +60,14 @@
 
 	# force proper 32/64bit libs
 	local archselect
-	if use amd64 || use ppc64; then
-		archselect="-b 64"
+	if use amd64 || use ppc64 || use sparc ; then
+		if [ ${ABI} = amd64 ] || [ ${ABI} = ppc64 ] || [ ${ABI} = sparc64 ] ; then
+			archselect="-b 64"
+		elif [ ${ABI} = x86 ] || [ ${ABI} = ppc ] || [ ${ABI} = sparc32 ] ; then
+			archselect="-b 32"
+		else
+			archselect="-b 64"
+		fi
 	elif use alpha; then
 		archselect=""
 	else