cc1: error: '-march=r3900' requires '-mfp32'

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1001354ca34179f3db924eb66672442a173147dc
commit: 034827c727f7f3946a18355b63995b402c226c82 MIPS: Fix -mabi=64 build of vdso.lds
date:   5 days ago
config: mips-jmr3927_defconfig (attached as .config)
compiler: mips-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 034827c727f7f3946a18355b63995b402c226c82
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All errors (new ones prefixed by >>):

>> cc1: error: '-march=r3900' requires '-mfp32'

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0-DAY kernel test infrastructure                Open Source Technology Center
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