[mixxx/f23] (5 commits) ...add patch

[Leigh Scott]

Summary of changes:

  4859b54... update .gitignore (*)
  6c9f09a... Add gcc6 patch (*)
  fe5b57b... git add mixxx-gcc6.patch (*)
  9f5b443... Patch so it builds on ARM (rfbz#2413) (*)
  733c1dc... add patch (*)

(*) This commit already existed in another branch; no separate mail sent