Index: lib/sanitizer_common/sanitizer_common_interceptors.inc
===================================================================
--- lib/sanitizer_common/sanitizer_common_interceptors.inc
+++ lib/sanitizer_common/sanitizer_common_interceptors.inc
@@ -212,6 +212,10 @@
   }
 #endif
 
+#ifndef COMMON_INTERCEPT_FUNCTION_MEMCPY
+#define COMMON_INTERCEPT_FUNCTION_MEMCPY() {}
+#endif
+
 struct FileMetadata {
   // For open_memstream().
   char **addr;