[[!comment format=mdwn username="joey" subject="""comment 1""" date="2016-07-11T16:14:37Z" content=""" The build error suggests a problem with either the libidn.a library in openbsd, or the haskell bindings to it in gnuidn. A similar problem is discussed in [[More_build_oddities_under_OpenBSD]]. Disabling XMPP support in git-annex makes it not need either library, so should avoid the problem. Eg: `stack build --flag git-annex:-XMPP` (Although AFAICS, XMPP support is disabled by default in stack.yaml anyway, so I am not sure why your stack build included it.) """]]