[U-Boot] Problems while compiling u-boot-2016 with clang toolchain

Hi,

I am trying to compile u-boot-2016-rc1 with clang toolchain for a ARM based custom SoC. I see that clang substitutes standard C library calls like memcpy() and memset() with its own definitions. I want to prevent that and instead ask the toolchain to use u-boot 's defnitions for memcpy() and memset(). Please let me know the options that I need to pass to the toolchain.

Regards, Ayan Kumar Halder