THRIFT-3579 Introduce retry to make cross

This closes #817
diff --git a/Makefile.am b/Makefile.am
index 8ed400d..46e7d4f 100755
--- a/Makefile.am
+++ b/Makefile.am
@@ -57,8 +57,8 @@
 
 if WITH_PYTHON
 cross: precross
-	$(CROSS_PY) test/test.py -F.* -s --server $(CROSS_LANGS_COMMA_SEPARATED)
-	$(CROSS_PY) test/test.py -s --server $(CROSS_LANGS_COMMA_SEPARATED) --client $(CROSS_LANGS_COMMA_SEPARATED)
+	$(CROSS_PY) test/test.py --retry-count 3 --features .* --skip-known-failures --server $(CROSS_LANGS_COMMA_SEPARATED)
+	$(CROSS_PY) test/test.py --retry-count 3 --skip-known-failures --server $(CROSS_LANGS_COMMA_SEPARATED) --client $(CROSS_LANGS_COMMA_SEPARATED)
 else
 # feature test needs python build
 cross: precross