unknown argument: '-mno-fused-madd'

Hi,
   I tried to install the HDF5-1.8.12 and h5py-2.3.0. But when I built the
h5py-2.3.0, I got un error of unknown argument:

cc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os
-pipe -fno-common -fno-strict-aliasing -fwrapv -mno-fused-madd
-DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes
-Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes
-DENABLE_DTRACE -arch x86_64 -arch i386 -pipe -DH5_USE_16_API
-I/Users/xxwang/work/local/src/h5py-2.3.0/lzf
-I/Library/Frameworks/Python.framework/Versions/Current/include
-I/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/numpy/core/include
-I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7
-c h5py/defs.c -o build/temp.macosx-10.9-intel-2.7/h5py/defs.o
clang: error: unknown argument: '-mno-fused-madd'
[-Wunused-command-line-argument-hard-error-in-future]
clang: note: this will be a hard error (cannot be downgraded to a warning)
in the future
error: command 'cc' failed with exit status 1

    How can I compile the code successfully then ? Is this is a bug of
Clang, can you help me to fix the problem ? Thank you.

Best regards,

Xiaoni