libXft got a symbol cleanup for 2.1.9, and many symbols were hidden, including XftNameUnparse. It was later decided that XftNameUnparse should still be exported, since many applications depend on it. It was re-exported for 2.1.10, but was never properly applied to the git tree, so when 2.1.11 was released, the symbol was once again hidden. Following is a patch to re-export the symbol. I'm not sure what else is missing from libXft's git.
Created attachment 7660 [details] [review] XftNameUnparse.patch Patch created by David Gurvich <david.gurvich@verizon.net>.
2.1.12 pushed, thanks
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.