[PATCH] glob: Avoid copying the d_name field of struct dirent [BZ #19779]

[Roland McGrath]

Pretty much OK.  
Please follow up quickly on making sure we are harmonized with gnulib.

> +# if defined _DIRENT_HAVE_D_TYPE || defined HAVE_STRUCT_DIRENT_D_TYPE
> +  unsigned char type;
> +# endif

uint8_t seems better for something that is not a character.

> +      struct readdir_result result = {NULL};

Put spaces around NULL, or just use {} (which has the same semantics).

> +#ifndef COMPILE_GLOB64

Ditto in the copy.  Ick for having a copy.  If it seems best to have a
copy, then at least put a comment on the copy saying it needs to match.