Hi all, Thanks Holger for trying. I guess it must be another package.
As per https://www.debian.org/devel/website/translating, it seems that this variable is only needed for correctly sort stuff in the corresponding language, so, for now (until we find the fix), I have removed the ""-D CUR_LOCALE=tr_TR.UTF-8" line in /turkish/.wmlrc so the build at least starts. This has been made in commit 2bf084fcb1cae633a6e5b8f044003bdea7e87c4a Note that in former message I quoted perl documentation that mentions that the Turkic locales are correctly handled in Perl 5.30, but we have 5.28.1 in buster. I have checked 5.28.1 documentation and the relevant paragraphs are: "Locale '%s' contains (at least) the following characters which have unexpected meanings: %s The Perl program will use the expected meanings (W locale) You are using the named UTF-8 locale. UTF-8 locales are expected to have very particular behavior, which most do. This message arises when perl found some departures from the expectations, and is notifying you that the expected behavior overrides these differences. In some cases the differences are caused by the locale definition being defective, but the most common causes of this warning are when there are ambiguities and conflicts in following the Standard, and the locale has chosen an approach that differs from Perl's. One of these is because that, contrary to the claims, Unicode is not completely locale insensitive. Turkish and some related languages have two types of "I" characters. One is dotted in both upper- and lowercase, and the other is dotless in both cases. Unicode allows a locale to use either the Turkish rules, or the rules used in all other instances, where there is only one type of "I" , which is dotless in the uppercase, and dotted in the lower. The perl core does not (yet) handle the Turkish case, and this message warns you of that. Instead, the Unicode::Casing module allows you to mostly implement the Turkish casing rules." Maybe the fix is installing libunicode-utf8-perl package? Kind regards, -- Laura Arjona Reina https://wiki.debian.org/LauraArjona