Re: Small "syntax" issue with xlc compiler and version 1.5.28

On Thu, Jan 12, 2017 at 5:50 AM, Michael Felt <[email protected]> wrote:
> "../src/libpng-1.5.28/contrib/libtests/pngvalid.c", line 7746.1:
> 1506-191 (E) The character # is not a valid C source character.

> -         that->pm->limit += pow(
> -#        if DIGITIZE
> -            2.0
> -#        else
> -            1.0
> -#        endif
> -            /255, data.gamma);
> +         that->pm->limit += pow( 2.0/255, data.gamma);
> +#if     DIGITIZE
> +           that->pm->limit += pow( 2.0/255, data.gamma);
> +#       else
> +            that->pm->limit += pow( 1.0/255, data.gamma);
> +#       endif
>         }
>      }

You need to have a C compiler that complies with ISO-C90 ("ANSI C").

Try options to turn on compliance (it would be -ansi or something like
that for GCC).

The problem seems to be that it doesn't do the pre-processor stage in
a way that either compiles with ISO-C or, for that matter, with the
legacy (K&R) implementation.

-- 
John Bowler <[email protected]>
+1 (541) 450-9885
PO BOX 3151
KERBY OR 97531-3151
USA

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