Re: Build failure: k12.c:275:11: error: variable 'actual_len' set but not used [-Werror=unused-but-set-variable]

[Stephen Fisher <steve () stephen-fisher com>]

On Sun, Apr 17, 2011 at 03:48:16PM +0000, Christopher Maynard wrote:
> Kaul <mykaul@...> writes:
>
> > k12.c: In function 'get_record':k12.c:275:11: error: variable 'actual_len' set
> but not used [-Werror=unused-but-set-variable]cc1: all warnings being treated as
> errors
>
> As far as I can tell, actual_len is used after being assigned, so I'm 
> not sure why this warning is emitted.

Could it be because it's used by the K12_HEXDMP macro?

    #define K12_HEXDMP(x,a,b,c,d) k12_hexdump(x,a,b,c,d)

Which then calls a function that uses it?  I wonder if changing the 
macro to the function itself would satisfy that version of gcc?


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