[PATCH] Fix GLIBC build error with recent GCC6

[Carlos O'Donell]

On 07/20/2015 12:31 PM, Wilco Dijkstra wrote:
> iconvdata/iso-2022-cn-ext.c fails to build with modern GCC, so add a warning disable. I created PR
> 66946 to see whether this can be fixed in GCC.
> 
> 
> ChangeLog:
> 2015-07-20  Wilco Dijkstra  <wdijkstr@arm.com>
> 
>         * iconvdata/iso-2022-cn-ext.c: Add warning disable.
> 
> 
> ---
>  iconvdata/iso-2022-cn-ext.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/iconvdata/iso-2022-cn-ext.c b/iconvdata/iso-2022-cn-ext.c
> index 2c9846d..75590a0 100644
> --- a/iconvdata/iso-2022-cn-ext.c
> +++ b/iconvdata/iso-2022-cn-ext.c
> @@ -656,6 +656,7 @@ enum
>  				while (0)
>  #define UPDATE_PARAMS		*setp = (set | ann) << 3
>  #define LOOP_NEED_FLAGS
> +# pragma GCC diagnostic ignored "-Wuninitialized"
>  #include <iconv/loop.c>

Can you localize it more? Add a comment and reference the BZ?

e.g.

      /* Building with -O3 GCC emits a `array subscript is above array
         bounds' warning.  GCC BZ #64739 has been opened for this.  */
      DIAG_PUSH_NEEDS_COMMENT;
      DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Warray-bounds");
      while (inptr < inend)
        bytebuf[inlen++] = *inptr++;
      DIAG_POP_NEEDS_COMMENT;


Cheers,
Carlos.