Arch Linux

Copy/paste description from upstream bug report https://bugzilla.xfce.org/show_bug.cgi?id=7400

>New gdm has GDM_LANG set to "" which confuses xfce4-session, resulting in a
>null LANG being set instead of whatever should be in there.
>
>Downstream report:
>
>https://bugzilla.redhat.com/show_bug.cgi?id=683941
>
>Simple patch:
>
>Only use GDM_LANG if not empty
>
>gdm >= 2.91 sets GDM_LANG to an empty string which xfce-session
>ends up using, overriding existing good LANG and breaking up utf8 etc.
>
>diff -up xfce4-session-4.8.1/xfce4-session/main.c.gdmlang
>xfce4-session-4.8.1/xfce4-session/main.c
>--- xfce4-session-4.8.1/xfce4-session/main.c.gdmlang 2011-03-10
>15:59:08.000000000 +0200
>+++ xfce4-session-4.8.1/xfce4-session/main.c 2011-03-10 15:59:30.000000000
>+0200
>@@ -103,7 +103,7 @@ setup_environment (void)
>
> /* this is for compatibility with the GNOME Display Manager */
> lang = g_getenv ("GDM_LANG");
>- if (lang != NULL)
>+ if (lang != NULL && strlen (lang) > 0)
> {
> xfce_setenv ("LANG", lang, TRUE);
> xfce_unsetenv ("GDM_LANG");

My patch simply update the package with this patch.
Thanks to Kevin Fenzi for the original patch.

Successfully tested on a fr_FR.UTF-8 environnement broken by a recent upgrade.