geany/geany — comment on commit 4dd7092726569cfbe2eba15d77e4171d3556e19f
File: configure.ac line 6
By codebrainz:

This URL exposes a bug in some Autoconf versions (ie. mine, 2.67 - Ubuntu 11.04).

It causes a non-fatal warning so it's not serious at all; the build still works.

Related:
http://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=64000cf1f