m9u is designed to be a music server, much like mpd or xmms2. It sits in the background playing music, exporting an interface that one or more clients can connect to to control playback.
[Warning] Ebuild 0.5 uses unbracketed variable '$P'. Use '${P}' instead.
[Warning] Ebuild 0.5 uses unbracketed variable '$DEPEND'. Use '${DEPEND}' instead.
[Error] Ebuild 0.5 uses an obsolete EAPI '4'. EAPIs 0 to 4 are obsolete and must no longer be used.
[Notice] Ebuild 0.5 has an invalid header. It should start with a valid copyright line (e.g., '# Copyright YEARS MAIN-CONTRIBUTOR') and the GPLv2 distribution text followed by an empty line.
[Warning] Ebuild 0.5 has a line exceeding 80 positions on line 7.
[Warning] Ebuild 0.5 has trailing whitespace on line 22.
[Error] Manifest entry for unused DIST file 'm9u-0.5.tar.gz'
[Error] Repository is missing a repo-name in metadata/layout.conf or profiles/repo_name
[Notice] Package has only unstable keywords for arch(es): [ amd64, x86 ], all versions are unstable: [ 0.5 ]
[Error] Invalid or missing metadata.xml: open media-sound/m9u/metadata.xml: file does not exist