File _service:obs_scm:backport-Work-around-GOOGLE_-c... of Package protobuf-c

File _service:obs_scm:backport-Work-around-GOOGLE_-changes-in-protobuf-22.0.patch of Package protobuf-c

From 8d334a7204d98874cbf970cb96ab0c7b52e06695 Mon Sep 17 00:00:00 2001
From: Robert Edmonds <edmonds@users.noreply.github.com>
Date: Sun, 2 Jul 2023 19:42:19 -0400
Subject: [PATCH] Work around GOOGLE_* changes in protobuf >= 22.0

According to the protobuf migration guide as of June 2023 [0], protobuf
22.0 (aka 4.22.0) took a dependency on something called "abseil" and as
a result the "stubs" have been removed. This apparently caused all the
uses of GOOGLE_* identifiers in protoc-c to fail when building against
newer versions of protobuf.

This commit introduces compatibility definitions when building against
protobuf >= 4.22.0 so that protobuf-c can build against older and newer
versions of protobuf.

[0] https://web.archive.org/web/20230611151200/https://protobuf.dev/support/migration/#abseil
---
 protoc-c/c_helpers.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/protoc-c/c_helpers.h b/protoc-c/c_helpers.h
index 7598a4e..adc7ee2 100644
--- a/protoc-c/c_helpers.h
+++ b/protoc-c/c_helpers.h
@@ -178,6 +178,16 @@ inline int FieldSyntax(const FieldDescriptor* field) {
 #endif
 }
 
+// Work around changes in protobuf >= 22.x without breaking compilation against
+// older protobuf versions.
+#if GOOGLE_PROTOBUF_VERSION >= 4022000
+# define GOOGLE_ARRAYSIZE	ABSL_ARRAYSIZE
+# define GOOGLE_CHECK_EQ	ABSL_CHECK_EQ
+# define GOOGLE_CHECK_EQ	ABSL_CHECK_EQ
+# define GOOGLE_DCHECK_GE	ABSL_DCHECK_GE
+# define GOOGLE_LOG		ABSL_LOG
+#endif
+
 }  // namespace c
 }  // namespace compiler
 }  // namespace protobuf
-- 
2.33.0