Recurse into libltdl directory and invoke autoconf there.

diff --git a/autogen.sh b/autogen.sh
index 10bf34a..9b867aa 100755 (executable)
--- a/autogen.sh
+++ b/autogen.sh
@@ -12,6 +12,10 @@ autoheader
 autoconf
 automake --add-missing
 
+# Make sure that libltdl uses the same autoconf version as the rest.
+#
+( echo "libltdl..."; cd libltdl; autoconf )
+
 ( echo "guile-readline..."; cd guile-readline; ./autogen.sh )
 
 echo "Now run configure and make."