Expat gets it's fixes time to time and bundled libraries lack behind accumulating security bugs and similar things. More words: https://wiki.gentoo.org/wiki/Why_not_bundle_dependencies We should: - figure out how old expat version is bundled - what are default #defines are used to check feasibility of using gentoo's library variant - ask/add support for using installed version upstream. Should be a matter of a few lines in .cabal file.
Upstream bug opened at https://github.com/the-real-blackh/hexpat/issues/8 now.
hexpat-0.20.13 (unbundled hexpat upstream) added as : https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f49b572487044b635dadd0db10851963ab42ffda Thank you!