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-rw-r--r--json_object.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/json_object.h b/json_object.h
index 6270309..df958bf 100644
--- a/json_object.h
+++ b/json_object.h
@@ -192,7 +192,7 @@ flags);
* @param userdata an optional opaque cookie
* @param user_delete an optional function from freeing userdata
*/
-void json_object_set_serializer(json_object *jso,
+extern void json_object_set_serializer(json_object *jso,
json_object_to_json_string_fn to_string_func,
void *userdata,
json_object_delete_fn *user_delete);