README says "it is distributed under the GNU General Public License" (no version specified) and license headers specify "you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 1 of the License, or (at your option) any later version."
+ 25 Nov 2012; Markos Chandras <hwoarang@gentoo.org> radiotray-0.7.2.ebuild, + radiotray-0.7.3-r1.ebuild, radiotray-9999.ebuild: + Fix license to be GPL-1+. Bug #444638. Thanks to Aljosha Papsch + <papsch.al@googlemail.com> +