diff --git a/lib/Makefile.am b/lib/Makefile.am
index 636f42c..0401c99 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -97,6 +97,10 @@
 SUBDIRS += rs
 endif
 
+if WITH_CL
+SUBDIRS += cl
+endif
+
 # All of the libs that don't use Automake need to go in here
 # so they will end up in our release tarballs.
 EXTRA_DIST = \