Subject: case-fold-titlecase test fails on OpenBSD

From: Collin Funk <[email-masked]>
Date: Wed, 26 Feb 2025 22:00:47 -0800

Hi Bruno,

You wrote:
> Building the current grep (git master) with the current Gnulib
> on OpenBSD 7.5, I see a test failure:
>
> FAIL: case-fold-titlecase

I noticed a similar failure on NetBSD.

On both platforms the ./configure gl_cv_func_mbrtoc32=no fixes the
tests.

I tried to use some of these characters to get a bad result from
mbrtoc32 and add it to gl_MBRTOC32_UTF8_LOCALE, but had no luck. So I am
thinking the issue is a bit more complex than that...

Collin