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devel/protobuf-c/patches/patch-protoc-c_c_helpers_h

@@ -0,0 +1,42 @@
+https://github.com/protobuf-c/protobuf-c/pull/673
+
+Index: protoc-c/c_helpers.h
+--- protoc-c/c_helpers.h.orig
++++ protoc-c/c_helpers.h
+@@ -70,6 +70,10 @@
+ #include <protobuf-c/protobuf-c.pb.h>
+ #include <google/protobuf/io/printer.h>
+ 
++#if GOOGLE_PROTOBUF_VERSION >= 4023000
++# include <google/protobuf/descriptor_legacy.h>
++#endif
++
+ namespace google {
+ namespace protobuf {
+ namespace compiler {
+@@ -172,11 +176,25 @@ int compare_name_indices_by_name(const void*, const vo
+ // This wrapper is needed to be able to compile against protobuf2.
+ inline int FieldSyntax(const FieldDescriptor* field) {
+ #ifdef HAVE_PROTO3
++# if GOOGLE_PROTOBUF_VERSION >= 4023000
++  return FileDescriptorLegacy(field->file()).syntax() == FileDescriptorLegacy::SYNTAX_PROTO3 ? 3 : 2;
++# else
+   return field->file()->syntax() == FileDescriptor::SYNTAX_PROTO3 ? 3 : 2;
++# endif
+ #else
+   return 2;
+ #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