ports/186692: [patch] audio/id3lib: fix iconv detection

[tijl at FreeBSD.org]

Synopsis: [patch] audio/id3lib: fix iconv detection

Responsible-Changed-From-To: freebsd-ports-bugs->tijl
Responsible-Changed-By: tijl
Responsible-Changed-When: Wed Feb 12 15:37:19 CET 2014
Responsible-Changed-Why: 
Take.

http://www.freebsd.org/cgi/query-pr.cgi?pr=186692