Re: [Grep-devel] [PATCH] grep: use 'j' printf length modifier for [u]intmax_t

[Paul Eggert]

Jim Meyering wrote:
> I found that gettext has been using %j in one of its
> tools for over two years

While encouraging, gettext's users are developers who tend to use more 
up-to-date libraries, whereas grep is an end-user tool that is more likely to 
run atop ancient libraries. And if the libraries don't work, failures will be at 
run-time and plausibily will occur only with large inputs that our test cases 
won't match.

Before installing this patch, how about if we run gl_PRINTF_SIZES_C99 at 
configure-time, and have 'configure' fail on platforms where 
$gl_cv_func_printf_sizes_c99 is not 'yes'? That would nip these sorts of 
problems in the bud.