D21133: Fix KAr::openArchive with older Qt

[Albert Astals Cid]

aacid closed this revision.

REPOSITORY
  R243 KArchive

REVISION DETAIL
  https://phabricator.kde.org/D21133

To: aacid, apol, dfaure
Cc: dfaure, kde-frameworks-devel, michaelh, ngraham, bruns