From baae98b052f9bfb63e3a91ceecf70ea268c20d32 Mon Sep 17 00:00:00 2001
From: Andreas Karlsson <andreas.karlsson@percona.com>
Date: Fri, 8 May 2026 11:35:55 +0200
Subject: [PATCH] Use PG_MODULE_MAGIC_EXT in PostgreSQL 18 and later

The PG_MODULE_MAGIC_EXT macro was added in PostgreSQL 18 and makes it
possible to see which version of the library is actually loaded using
pg_get_loaded_modules().
---
 src/spock.c        | 7 +++++++
 src/spock_output.c | 9 +++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/spock.c b/src/spock.c
index 8def4d39..16be4ada 100644
--- a/src/spock.c
+++ b/src/spock.c
@@ -68,7 +68,14 @@
 #include "spock_shmem.h"
 #include "spock.h"
 
+#if PG_VERSION_NUM >= 180000
+PG_MODULE_MAGIC_EXT(
+	.name = "spock",
+	.version = SPOCK_VERSION
+);
+#else
 PG_MODULE_MAGIC;
+#endif
 
 static const struct config_enum_entry SpockConflictResolvers[] = {
 	/*
diff --git a/src/spock_output.c b/src/spock_output.c
index 0b75b404..4a511f97 100644
--- a/src/spock_output.c
+++ b/src/spock_output.c
@@ -16,7 +16,16 @@
 
 #include "replication/logical.h"
 
+#include "spock.h"
+
+#if PG_VERSION_NUM >= 180000
+PG_MODULE_MAGIC_EXT(
+	.name = "spock_output",
+	.version = SPOCK_VERSION
+);
+#else
 PG_MODULE_MAGIC;
+#endif
 
 extern void _PG_output_plugin_init(OutputPluginCallbacks *cb);