--- a/configure
+++ b/configure
@@ -6681,7 +6681,7 @@
 LIBTOOL_DEPS="$ltmain"
 
 # Always use our own libtool.
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+LIBTOOL='$(CONFIG_SHELL) $(top_builddir)/libtool'