I've dropped Autohell in favour of a simple Makefile. Just do 'make' and then (as root) 'make install'. Use 'make install PREFIX=/usr' (or whatever prefix) if you don't want it in /usr/local.
If there's still a problem, make an issue on the github project because I feel as though I've caused too much noise on the mailing list with issues that aren't related to Geany/Plugins. I'm on the IRC channel quite often also.
I appreciate your testing this out, sorry about the build system.
To all, can anyone recommend a simple, cross-platform, build system?
Matthew Brush (codebrainz)