Re: check_strxfrm_bug()

On Fri Jul 7, 2023 at 3:30 PM CDT, Thomas Munro wrote:
> On Fri, Jul 7, 2023 at 4:20 AM Peter Eisentraut <peter@eisentraut.org> wrote:
> > I think the correct solution is to set HAVE_MBSTOWCS_L in Solution.pm.
> > Compare HAVE_FSEEKO, which is set in Solution.pm with fseeko being
> > defined in win32_port.h.
>
> In this version I have it in there, but set it to undef.  This way
> configure (MinGW), meson (MinGW or MSVC), and Solution.pm all agree.
> This version passes on CI (not quite sure what I screwed up before).
>
> To restate the problem I am solving with this Solution.pm change +
> associated changes in the C: configure+MinGW disabled the libc
> provider completely before.  With this patch that is fixed, and that
> forced me to address the inconsistency (because if you have the libc
> provider but no _l functions, you hit uselocale() code paths that
> Windows can't do).  It was a bug, really, but I don't plan to
> back-patch anything (nobody really uses configure+MinGW builds AFAIK,
> they exist purely as a developer [in]convenience).  But that explains
> why I needed to make a change.
>
> Thinking about how to bring this all into "normal" form -- where
> HAVE_XXX means "system defines XXX", not "system defines XXX || we
> define a replacement" -- leads to the attached.  Do you like this one?

Should you wrap the two _l function replacements in HAVE_USELOCALE
instead of WIN32?

> +if not cc.has_type('locale_t', prefix: '#include <locale.h>') and cc.has_type('locale_t', prefix: '#include <xlocale.h>')

I wouldn't mind a line break after the 'and'.

Other than these comments, the patch looks fine to me.

-- 
Tristan Partin
Neon (https://neon.tech)