diff --git a/m4/.cvsignore b/m4/.cvsignore
index 0354034b..3cdb3b45 100644
--- a/m4/.cvsignore
+++ b/m4/.cvsignore
@@ -1 +1,6 @@
 aclocal.m4
+libtool.m4
+ltoptions.m4
+ltsugar.m4
+ltversion.m4
+lt~obsolete.m4