meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf-c/protobuf3-compatibility.patch

From 7456d1621223d425b8a3fd74e435a79c046169fb Mon Sep 17 00:00:00 2001
From: Robert Edmonds <edmonds@users.noreply.github.com>
Date: Wed, 10 Apr 2019 20:47:48 -0400
Subject: [PATCH] t/generated-code2/cxx-generate-packed-data.cc: Fix build
 failure on newer protobuf

 Upstream-Status: Backport [https://github.com/protobuf-c/protobuf-c/pull/369]

google::protobuf::Message::Reflection has been removed in newer versions
of protobuf. The replacement is google::protobuf::Reflection.

protobuf in commit 779f61c6a3ce02a119e28e802f229e61b69b9046 ("Integrate
recent changes from google3.", from August 2008) changed the following
in message.h:

    @@ -336,7 +337,8 @@ class LIBPROTOBUF_EXPORT Message {

       // Introspection ---------------------------------------------------

    -  class Reflection;  // Defined below.
    +  // Typedef for backwards-compatibility.
    +  typedef google::protobuf::Reflection Reflection;

The "typedef for backwards-compatibility" apparently lasted ten years
until protobuf commit 6bbe197e9c1b6fc38cbdc45e3bf83fa7ced792a3
("Down-integrate from google3.", from August 2018) which finally removed
the typedef:

    @@ -327,8 +344,6 @@ class LIBPROTOBUF_EXPORT Message : public MessageLite {

       // Introspection ---------------------------------------------------

    -  // Typedef for backwards-compatibility.
    -  typedef google::protobuf::Reflection Reflection;

This commit updates the only use of this typedef (in the test suite) to
directly refer to the replacement, google::protobuf::Reflection. This
fixes the build failure in the test suite.
---
 t/generated-code2/cxx-generate-packed-data.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/t/generated-code2/cxx-generate-packed-data.cc b/t/generated-code2/cxx-generate-packed-data.cc
index 4fd3e25..0865d2e 100644
--- a/t/generated-code2/cxx-generate-packed-data.cc
+++ b/t/generated-code2/cxx-generate-packed-data.cc
@@ -998,7 +998,7 @@ static void dump_test_packed_repeated_enum (void)
 static void dump_test_unknown_fields (void)
 {
   EmptyMess mess;
-  const google::protobuf::Message::Reflection *reflection = mess.GetReflection();
+  const google::protobuf::Reflection *reflection = mess.GetReflection();
   google::protobuf::UnknownFieldSet *fs = reflection->MutableUnknownFields(&mess);

 #if GOOGLE_PROTOBUF_VERSION >= 2001000