--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1080,7 +1080,6 @@ m4_include([m4/intlmacosx.m4])
 m4_include([m4/lib-ld.m4])
 m4_include([m4/lib-link.m4])
 m4_include([m4/lib-prefix.m4])
-m4_include([m4/libtool.m4])
 m4_include([m4/longlong.m4])
 m4_include([m4/ltoptions.m4])
 m4_include([m4/ltsugar.m4])