--- bin/ebuild.sh.orig	2010-03-10 15:26:23 +0100
+++ bin/ebuild.sh	2010-03-10 15:41:00 +0100
@@ -579,9 +579,9 @@
 			--localstatedir="${EPREFIX}"/var/lib \
 			"$@" \
 			${EXTRA_ECONF}
-		vecho "${ECONF_SOURCE}/configure" "$@"
+		vecho "${CONFIG_SHELL}${CONFIG_SHELL:+ }${ECONF_SOURCE}/configure" "$@"
 
-		if ! "${ECONF_SOURCE}/configure" "$@" ; then
+		if ! ( "${CONFIG_SHELL:-exec}" "${ECONF_SOURCE}/configure" "$@" ) ; then
 
 			if [ -s config.log ]; then
 				echo