The first day of Catalan locale (ca_ES) is Sunday, but it's wrong.
The first day of the week in Catalonia is Moonday.
You need to provide proof and get the original locale author to agree.
I'm not the author for ca_ES, but I'm the one who sent ca_FR, ca_AD and ca_IT.
FWIW, I can confirm all of them start the week on monday.
I was about to enter a new bug regarding this.
Seems the first author is Joan Soler at uv dot es. I will try to contact him.
Note that both Debian and Ubuntu ship a modified version of this locale (ca_ES)
with this minor fix:
+% FIXME: found in CLDR
Here are patches from Pardus fixing additional locales including Turkish
Please do not generalize this bug; if you want other locales fixed, you need to
create new one, attach a patch that you are sure is against the git HEAD, and
provide a rationale for your changes.
I'll try to find a phone contact for Joan. If I get written permission from
Joan, would it be possible to change the maintainer to me, so future changes can
be reviewed by someone more involved in the Catalan i18n process?
Sorry for not replying to the last comment; I think what you describe is accepted as a general procedure so we could change the maintainer to you.
Thanks Petr. I confirm I am very interested in proceeding with this; in fact I was about to ping this bug report in light of the latest developments in the glibc development community.
It was impossible to contact Joan by phone or email, despite my multiple tries, either directly or via 3rd parties.
Please asign me, Jordi Mallach <email@example.com>, as the maintainer for ca_ES.
Created attachment 6316 [details]
Patch Fedora is using to fix ca_ES.
For the record, patch looks good to me.
Thank you, I have changed the maintainer and committed the patch.