$ gcc -march=native -Q --help=target *** Error in `gcc': double free or corruption (top): 0x013b8bf8 *** Aborted $ gcc -mcpu=native -Q --help=target *** Error in `gcc': double free or corruption (top): 0x00536c30 *** Aborted $ gcc -mtune=native -Q --help=target *** Error in `gcc': double free or corruption (top): 0x00a66c90 *** Aborted $
