[PATCH, nds32] Committed: Complete -march= option design.

[Chung-Ju Wu]

Hi, all,

When the help option --target-help is issued, the available items
for -march=X are supposed to be displayed automatically.
We need to complete -march= option design to perform such mechanism.


gcc/ChangeLog

2014-11-21  Chung-Ju Wu  <jasonw...@gmail.com>

        * config/nds32/nds32.opt (march): Add help message.


Committed as Rev. 217901: https://gcc.gnu.org/r217901


Best regards,
jasonwucj