cmake: Auto discover NANOPB_SRC_ROOT_FOLDER

[apps/agl-service-can-low-level.git] / examples / using_union_messages / unionproto.proto

diff --git a/examples/using_union_messages/unionproto.proto b/examples/using_union_messages/unionproto.proto
index d7c9de2..209df0d 100644 (file)
--- a/examples/using_union_messages/unionproto.proto
+++ b/examples/using_union_messages/unionproto.proto
@@ -5,6 +5,8 @@
 // but they are commonly implemented by filling out exactly one of
 // several optional fields.
 
+syntax = "proto2";
+
 message MsgType1
 {
     required int32 value = 1;