claws-mail-fancy-0.9.16 & webkit-gtk2-1.4.3_1 from freebsd ports. claws-mail (Configuration->Plugins->Load) says: The following error occurred while loading fancy.so : /usr/local/lib/claws-mail/plugins/fancy.so: Undefined symbol "D_"
I assume the plugin has been compiled with --disable-nls? Looks like https://github.com/marvil07/claws-mail-plugins/commit/7ab5564bd43c717406861fcaa3d915c57086814e - and I think this affects yet more plugins.
Yep, it turns out I had in /etc/make.conf "WITHOUT_NLS=1". Removing that line & rebuilding the port fixes the problem. Thank you.
This bug affected the following plugins: acpi_notifier, address_keeper, archive, attachwarner, bsfilter, fancy, fetchinfo, gtkhtml2_viewer, notification, rssyl, spam_report, and vcalendar. It's no fixed in CVS.