1 files changed, 76 insertions, 0 deletions
diff --git a/net-libs/ignition-transport/files/protobuf.patch b/net-libs/ignition-transport/files/protobuf.patch
new file mode 100644
index 000000000000..497da899db7a
--- /dev/null
+++ b/net-libs/ignition-transport/files/protobuf.patch
@@ -0,0 +1,76 @@
+From e35a697b619dbcecec0ae0c8b8f0a644d368abf3 Mon Sep 17 00:00:00 2001
+From: Silvio Traversaro <silvio@traversaro.it>
+Date: Tue, 6 Jun 2023 17:19:49 +0200
+Subject: [PATCH] Fix compatibility with protobuf 22
+
+Signed-off-by: Silvio Traversaro <silvio@traversaro.it>
+---
+ CMakeLists.txt                              | 2 --
+ include/gz/transport/RepHandler.hh          | 8 ++++++--
+ include/gz/transport/SubscriptionHandler.hh | 6 ++++--
+ 3 files changed, 10 insertions(+), 6 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 5e3aab859..843fb17cb 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -38,9 +38,7 @@ message(STATUS "\n\n-- ====== Finding Dependencies ======")
+ 
+ #--------------------------------------
+ # Find Protobuf
+-set(REQ_PROTOBUF_VER 3)
+ ign_find_package(IgnProtobuf
+-                 VERSION ${REQ_PROTOBUF_VER}
+                  REQUIRED
+                  PRETTY Protobuf)
+ 
+diff --git a/include/gz/transport/RepHandler.hh b/include/gz/transport/RepHandler.hh
+index 5d27f98c1..a5675fca7 100644
+--- a/include/gz/transport/RepHandler.hh
++++ b/include/gz/transport/RepHandler.hh
+@@ -26,7 +26,7 @@
+ #pragma warning(pop)
+ #endif
+ 
+-#if GOOGLE_PROTOBUF_VERSION > 2999999
++#if GOOGLE_PROTOBUF_VERSION > 2999999 && GOOGLE_PROTOBUF_VERSION < 4022000
+ #include <google/protobuf/stubs/casts.h>
+ #endif
+ 
+@@ -140,7 +140,11 @@ namespace ignition
+           return false;
+         }
+ 
+-#if GOOGLE_PROTOBUF_VERSION > 2999999
++#if GOOGLE_PROTOBUF_VERSION >= 4022000
++        auto msgReq =
++          google::protobuf::internal::DownCast<const Req*>(&_msgReq);
++        auto msgRep = google::protobuf::internal::DownCast<Rep*>(&_msgRep);
++#elif GOOGLE_PROTOBUF_VERSION > 2999999
+         auto msgReq = google::protobuf::down_cast<const Req*>(&_msgReq);
+         auto msgRep = google::protobuf::down_cast<Rep*>(&_msgRep);
+ #else
+diff --git a/include/gz/transport/SubscriptionHandler.hh b/include/gz/transport/SubscriptionHandler.hh
+index 78477add0..d69c83ddb 100644
+--- a/include/gz/transport/SubscriptionHandler.hh
++++ b/include/gz/transport/SubscriptionHandler.hh
+@@ -28,7 +28,7 @@
+ 
+ #include <google/protobuf/stubs/common.h>
+ 
+-#if GOOGLE_PROTOBUF_VERSION >= 3000000
++#if GOOGLE_PROTOBUF_VERSION >= 3000000 && GOOGLE_PROTOBUF_VERSION < 4022000
+ #include <google/protobuf/stubs/casts.h>
+ #endif
+ 
+@@ -211,7 +211,9 @@ namespace ignition
+         if (!this->UpdateThrottling())
+           return true;
+ 
+-#if GOOGLE_PROTOBUF_VERSION >= 3000000
++#if GOOGLE_PROTOBUF_VERSION >= 4022000
++        auto msgPtr = google::protobuf::internal::DownCast<const T*>(&_msg);
++#elif GOOGLE_PROTOBUF_VERSION >= 3000000
+         auto msgPtr = google::protobuf::down_cast<const T*>(&_msg);
+ #else
+         auto msgPtr = google::protobuf::internal::down_cast<const T*>(&_msg);