testsuite: Warn about empty $(IPVERS)

alltests target requires having symlink created by configure target
(default target). Without that there is no test being run.

Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/testsuite/Makefile b/testsuite/Makefile
index 1c2467f5c9f00031baa2fb439b1c020f070eb452..b3aebec1517b2eab3ec91590ed1f6b185692d6f2 100644 (file)
--- a/testsuite/Makefile
+++ b/testsuite/Makefile
@@ -54,6 +54,9 @@ distclean: clean
        echo "Entering iproute2" && cd iproute2 && $(MAKE) distclean && cd ..;
 
 $(TESTS): testclean
+ifeq (,$(IPVERS))
+       $(error Please run make first)
+endif
 ifeq (,$(HAVE_UNSHARED_UTIL))
        $(error Please install util-linux tools to run tests in separated network namespace)
 endif