repositories: add xira overlay

Closes: gentoo#628
Signed-off-by: Florian Schmaus <[email protected]>

files/overlays/repositories.xml

@@ -4636,6 +4636,18 @@
  </owner>
  <source type="git">git:https://overlay.xelnor.net/overlay.git</source>
  </repo>
+ <repo quality="experimental" status="unofficial">
+ <name>xira</name>
+ <description lang="en">An LLVM-centric personal overlay, with clang fixes to existing builds, and newly found software, patched or not.</description>
+ <homepage>https://github.com/kir68k/xira</homepage>
+ <owner type="person">
+ <email>[email protected]</email>
+ <name>Kirin "Xira" Etheridge</name>
+ </owner>
+ <source type="git">https://github.com/kir68k/xira.git</source>
+ <source type="git">git+ssh:https://[email protected]/kir68k/xira.git</source>
+ <feed>https://github.com/kir68k/xira/commits/master.atom</feed>
+ </repo>
  <repo quality="experimental" status="unofficial">
  <name>xoreos</name>
  <description lang="en">Gentoo overlay for the xoreos project, providing a WIP reimplementation of the BioWare Aurora engine and related modding tools.</description>