From cb0cd87f23581a881fcc36e74367d53da24457d1 Mon Sep 17 00:00:00 2001
From: Enno Rehling <enno.rehling@gmail.com>
Date: Tue, 2 May 2017 15:10:43 +0200
Subject: [PATCH] fix callbacks linkage for clang/mac

---
 src/kernel/CMakeLists.txt | 2 +-
 src/kernel/callbacks.c    | 3 ++-
 src/kernel/callbacks.h    | 6 ++++--
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/kernel/CMakeLists.txt b/src/kernel/CMakeLists.txt
index e572d0763..fe560af7a 100644
--- a/src/kernel/CMakeLists.txt
+++ b/src/kernel/CMakeLists.txt
@@ -17,7 +17,7 @@ group.test.c
 item.test.c
 messages.test.c
 order.test.c
-# pathdinder.test.c
+# pathfinder.test.c
 plane.test.c
 pool.test.c
 race.test.c
diff --git a/src/kernel/callbacks.c b/src/kernel/callbacks.c
index d8070bd04..c1d52352a 100644
--- a/src/kernel/callbacks.c
+++ b/src/kernel/callbacks.c
@@ -1,4 +1,5 @@
 #include <platform.h>
 #include "callbacks.h"
 
-struct callbacks callbacks;
+struct callback_struct callbacks = { 0 };
+
diff --git a/src/kernel/callbacks.h b/src/kernel/callbacks.h
index 71f3900c4..f42d25d3f 100644
--- a/src/kernel/callbacks.h
+++ b/src/kernel/callbacks.h
@@ -25,11 +25,13 @@ extern "C" {
 
     struct castorder;
 
-    extern struct callbacks {
+    struct callback_struct {
         int (*cast_spell)(struct castorder *co, const char *fname);
-    } callbacks;
+    };
 
+    extern struct callback_struct callbacks;
 #ifdef __cplusplus
 }
 #endif
 #endif /* H_KRNL_CALLBACKS_H */
+