[packages/isl] (2 commits) ...- updated to 0.24 (new soname) - added opt patch, build portable library with optflags based on dist

[qboosh]

Summary of changes:

  04b3d11... - updated to 0.22.1 (new soname) (*)
  92db16f... - updated to 0.24 (new soname) - added opt patch, build por (*)

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