diff --git a/external/bdwgc b/external/bdwgc
index 35a51fcbf1e6..876a56777d9f 160000
--- a/external/bdwgc
+++ b/external/bdwgc
@@ -1 +1 @@
-Subproject commit 35a51fcbf1e64457e46f9655cec7ccc586a13135
+Subproject commit 876a56777d9fb8ca559c8889c586cc88eb120d75
diff --git a/mono/metadata/boehm-gc.c b/mono/metadata/boehm-gc.c
index 5515dcf0cb9e..8add35d9196d 100644
--- a/mono/metadata/boehm-gc.c
+++ b/mono/metadata/boehm-gc.c
@@ -394,6 +394,13 @@ mono_gc_collect_a_little()
 	return GC_collect_a_little();
 }
 
+void mono_gc_start_incremental_collection()
+{
+#if HAVE_BDWGC_GC
+	GC_start_incremental_collection();
+#endif	
+}
+
 /**
  * mono_gc_max_generation:
  *
diff --git a/mono/metadata/mono-gc.h b/mono/metadata/mono-gc.h
index f2ce265ab19d..dbf2971efc20 100644
--- a/mono/metadata/mono-gc.h
+++ b/mono/metadata/mono-gc.h
@@ -117,6 +117,7 @@ MONO_API MonoBoolean mono_gc_is_incremental (void);
 MONO_API void 	mono_gc_set_incremental(MonoBoolean value);
 MONO_API void     mono_gc_finalize_notify    (void);
 MONO_API int    mono_gc_invoke_finalizers (void);
+MONO_API void mono_gc_start_incremental_collection();
 /* heap walking is only valid in the pre-stop-world event callback */
 MONO_API int    mono_gc_walk_heap        (int flags, MonoGCReferences callback, void *data);
 
diff --git a/mono/metadata/null-gc.c b/mono/metadata/null-gc.c
index b95ffa4e29d3..7f91ee38c0ad 100644
--- a/mono/metadata/null-gc.c
+++ b/mono/metadata/null-gc.c
@@ -55,6 +55,11 @@ mono_gc_collect (int generation)
 {
 }
 
+void
+mono_gc_start_incremental_collection()
+{
+}
+
 int
 mono_gc_max_generation (void)
 {
diff --git a/mono/metadata/sgen-mono.c b/mono/metadata/sgen-mono.c
index 98197c1ca805..2a2f624b1837 100644
--- a/mono/metadata/sgen-mono.c
+++ b/mono/metadata/sgen-mono.c
@@ -2819,6 +2819,12 @@ mono_gc_collect (int generation)
 	sgen_gc_collect (generation);
 }
 
+void 
+mono_gc_start_incremental_collection()
+{
+
+}
+
 int
 mono_gc_collection_count (int generation)
 {