tests: $(BUILT_SOURCES) is not defined, depend on osmo-bts-virtual

Change-Id: I4ace06e115a2689bde9afd9f99ecee99d796360b
---
M tests/Makefile.am
1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/tests/Makefile.am b/tests/Makefile.am
index a1d04a7..100c5d4 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -32,10 +32,10 @@
 DISTCLEANFILES = atconfig
 
 if ENABLE_EXT_TESTS
-python-tests: $(BUILT_SOURCES)
+python-tests:
 	$(MAKE) vty-test
 else
-python-tests: $(BUILT_SOURCES)
+python-tests:
 	echo "Not running python-based tests (determined at configure-time)"
 endif
 
@@ -45,7 +45,7 @@
 # To update the VTY script from current application behavior,
 # pass -u to vty_script_runner.py by doing:
 #   make vty-test U=-u
-vty-test:
+vty-test: $(top_builddir)/src/osmo-bts-virtual/osmo-bts-virtual
 	osmo_verify_transcript_vty.py -v \
 		-n OsmoBTS -p 4241 \
 		-r "$(top_builddir)/src/osmo-bts-virtual/osmo-bts-virtual --vty-test -c $(top_srcdir)/doc/examples/virtual/osmo-bts-virtual.cfg" \

