[Bug driver/83206] -mfpu=auto does not work on ARM (armv7l-unknown-linux-gnueabihf)

[andrewm.roberts at sky dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83206

--- Comment #20 from Andrew Roberts <andrewm.roberts at sky dot com> ---
The patch in in latest snapshot is working ok on Raspberry Pi Zero. And
-help=target now returns:

/usr/local/gcc/bin/gcc -march=native -mcpu=native -mfpu=auto -Q --help=target |
grep "march\|mcpu\|mfpu"
  -march=                               armv6zk
  -mcpu=                                arm1176jzf-s
  -mfpu=                                auto

gcc version 8.0.0 20171210 (experimental) (GCC)