Added wrapper [#CLICKHOUSE-2].

libs/CMakeLists.txt

@@ -6,6 +6,7 @@ endif ()
 add_subdirectory (libcommon)
 add_subdirectory (libpocoext)
 add_subdirectory (libdaemon)
+add_subdirectory (libmemcpy)
 
 if (USE_MYSQL)
     add_subdirectory (libmysqlxx)

libs/libmemcpy/CMakeLists.txt

@@ -0,0 +1 @@
+add_library (memcpy memcpy.c)

libs/libmemcpy/memcpy.c

@@ -0,0 +1,3 @@
+#include "memcpy.h"
+
+/// This is needed to generate an object file for linking.

libs/libmemcpy/memcpy.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "FastMemcpy.h"
+
+void * __attribute__((__weak__)) memcpy(void * __restrict destination, const void * __restrict source, size_t size)
+{
+    return memcpy_fast(destination, source, size);
+}
+
+#ifdef __cplusplus
+}
+#endif