diff --git a/autogen.sh b/autogen.sh
index 98b91da9..e213c1a1 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -4,6 +4,10 @@ set -e
 # This script creates (or regenerates) configure (as well as aclocal.m4,
 # config.h.in, Makefile.in, etc.) missing in the source repository.
 
+# Install libtool.m4 and ltmain.sh in the build tree.  This command is needed
+# if autoreconf and libtoolize are available from the different directories.
+libtoolize -i -c
+
 autoreconf -i
 
 echo