add support for ocaml 3.12

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163096 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/bindings/ocaml/executionengine/executionengine_ocaml.c b/bindings/ocaml/executionengine/executionengine_ocaml.c
index 5b1e32e..02e0306 100644
--- a/bindings/ocaml/executionengine/executionengine_ocaml.c
+++ b/bindings/ocaml/executionengine/executionengine_ocaml.c
@@ -75,6 +75,9 @@
   custom_hash_default,
   custom_serialize_default,
   custom_deserialize_default
+#ifdef custom_compare_ext_default
+  , custom_compare_ext_default
+#endif
 };
 
 static value alloc_generic_value(LLVMGenericValueRef Ref) {
diff --git a/bindings/ocaml/llvm/llvm_ocaml.c b/bindings/ocaml/llvm/llvm_ocaml.c
index a5985d9..c984bd1 100644
--- a/bindings/ocaml/llvm/llvm_ocaml.c
+++ b/bindings/ocaml/llvm/llvm_ocaml.c
@@ -1277,6 +1277,9 @@
   custom_hash_default,
   custom_serialize_default,
   custom_deserialize_default
+#ifdef custom_compare_ext_default
+  , custom_compare_ext_default
+#endif
 };
 
 static value alloc_builder(LLVMBuilderRef B) {