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-rw-r--r--byterun/custom.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/byterun/custom.h b/byterun/custom.h
index ca3861f0a..f2fbe1b42 100644
--- a/byterun/custom.h
+++ b/byterun/custom.h
@@ -31,10 +31,9 @@ struct custom_operations {
};
#define custom_finalize_default NULL
-CAMLextern int custom_compare_default(value v1, value v2);
+#define custom_compare_default NULL
#define custom_hash_default NULL
-CAMLextern void custom_serialize_default(value v, unsigned long * wsize_32,
- unsigned long * wsize_64);
+#define custom_serialize_default NULL
#define custom_deserialize_default NULL
#define Custom_ops_val(v) (*((struct custom_operations **) (v)))