diff -up sudo-1.7.4p3/aclocal.m4.m4path sudo-1.7.4p3/aclocal.m4
--- sudo-1.7.4p3/aclocal.m4.m4path	2010-09-07 13:11:59.095198365 +0200
+++ sudo-1.7.4p3/aclocal.m4	2010-09-07 13:12:25.718209211 +0200
@@ -368,8 +368,8 @@ EOF
 dnl
 dnl Pull in libtool macros
 dnl
-m4_include([libtool.m4])
-m4_include([ltoptions.m4])
-m4_include([ltsugar.m4])
-m4_include([ltversion.m4])
-m4_include([lt~obsolete.m4])
+m4_include([m4/libtool.m4])
+m4_include([m4/ltoptions.m4])
+m4_include([m4/ltsugar.m4])
+m4_include([m4/ltversion.m4])
+m4_include([m4/lt~obsolete.m4])