znc/znc — pull request #496 by psychon (2014-02-24 17:39:43+00:00)
Title: configure: Give a reason for disabled features

This adds a short reason to the summary at the end of configure (for options
where it makes sense, e.g. not debug or ipv6).

Example:

charset: no (icu-uc not found via pkg-config)

Signed-off-by: Uli Schlachter