Created attachment 396196 [details, diff] Patch for ebuild Building media-sound/sound-juicer-3.12.0 requires dev-util/itstool. The attached patch fixes the ebuild.
Thanks for reporting; in fact, sound-juicer needs itstool only if building from git, not when using a tarball release like 3.12.0. So the ebuild tried to disable the unneeded itstool configure check - but it didn't quite work because of a typo :) + 07 Mar 2015; Alexandre Rostovtsev <tetromino@gentoo.org> + sound-juicer-3.12.0.ebuild, sound-juicer-3.14.0.ebuild: + ITSTOOL typo (bug #539808, thanks to Nicolas Bock).