In January upstream moved /usr/bin/enchant and the libraries to enchant-2, hence spell checking doesn't work anymore, when building claws against the current release of enchant. Several distros, not only rolling releases already migrated to the latest release of enchant. [rocketmouse@archlinux ~]$ claws-mail -v Claws Mail version 3.16.0git97 [rocketmouse@archlinux ~]$ enchant-2 -v @(#) International Ispell Version 3.1.20 (but really Enchant 2.2.3)