tests: DejaGNU libzebra

Wrap the few libzebra test programs we have up for DejaGNU.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 153922b..93c06b0 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,12 +1,15 @@
 AUTOMAKE_OPTIONS    = dejagnu
 export DEJAGNU
-DEJATOOL =
+DEJATOOL = libzebra
 
-SUBDIRS = bgpd.tests
+SUBDIRS = \
+	bgpd.tests \
+	libzebra.tests
 
 EXTRA_DIST = \
 	config/unix.exp \
 	lib/bgpd.exp \
+	lib/libzebra.exp \
 	global-conf.exp
 
 INCLUDES = @INCLUDES@ -I.. -I$(top_srcdir) -I$(top_srcdir)/lib -I$(top_builddir)/lib