[tests] allow zmq test to be run in out-of-tree builds

test/functional/test_runner.py

@@ -178,7 +178,10 @@ def main():
 
     # Read config generated by configure.
     config = configparser.ConfigParser()
-    config.read_file(open(os.path.dirname(__file__) + "/config.ini"))
+    configfile = os.path.abspath(os.path.dirname(__file__)) + "/config.ini"
+    config.read_file(open(configfile))
+
+    passon_args.append("--configfile=%s" % configfile)
 
     # Set up logging
     logging_level = logging.INFO if args.quiet else logging.DEBUG