D16183: KCrash: fix crash (ironic heh) when used in an app without QCoreApplication

[David Faure]

dfaure created this revision.
dfaure added reviewers: heikobecker, aacid, sitter.
Herald added a project: Frameworks.
Herald edited subscribers, added: kde-frameworks-devel; removed: Frameworks.
dfaure requested review of this revision.

REVISION SUMMARY
  For instance in kio_help. The right fix is to create a QCoreApplication
  in all kioslaves, but this commit preserves compatibility between KF 5.50
  and 5.51 after KIO's commit d428fc8e6447ede81f1e1911d0b66b39265672f3 <https://phabricator.kde.org/R241:d428fc8e6447ede81f1e1911d0b66b39265672f3>

TEST PLAN
  Starting khelpcenter, no more core files from kio_help in my cores directory.

REPOSITORY
  R285 KCrash

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D16183

AFFECTED FILES
  src/kcrash.cpp

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