Dear fellow DD, looks like "enchant" is no longer maintained upstream by "AbiWord", but maintainership was transferred to "Reuben Thomas" and now lives at <https://github.com/rrthomas/enchant/> respective <https://rrthomas.github.io/enchant/>.
I tried to find some "proof" of official maintainership transfer, but so far did not find any proof. "abisource.com" looks dead. The only hint I found is that <https://github.com/AbiWord/enchant> now redirects to <https://github.com/rrthomas/enchant>. There also are new releases at <https://github.com/rrthomas/enchant/releases>, current is v2.8.2. Philipp Hahn