--- a/Makefile
+++ b/Makefile
@@ -181,20 +181,13 @@
 ###### contrib libraries ######
 
 contrib::
-# ifeq (1,1)
-# 	$(MAKE) -C contrib/parcomb all
-# endif
-# ifeq ($(HAVE_LIBGLIB20),1)
-# 	$(MAKE) -C contrib/glib all
-# endif
-# ifeq ($(HAVE_LIBGTK20),1)
-# 	$(MAKE) -C contrib/cairo all
-# 	$(MAKE) -C contrib/pango all
-# 	$(MAKE) -C contrib/GTK all
-# endif
-# ifeq ($(HAVE_LIBSDL10),1)
-# 	$(MAKE) -C contrib/SDL all
-# endif
+	$(MAKE) -C contrib/cblas all
+	$(MAKE) -C contrib/cblas/TEST cleanall
+	$(MAKE) -C contrib/clapack all
+	$(MAKE) -C contrib/parcomb all
+	$(MAKE) -C contrib/glib all
+	$(MAKE) -C contrib/pango all
+	$(MAKE) -C contrib/SDL all
 
 ###### some toplevel commands ######
 
