Mac: kbuildsycoca5 and kded5 deadloop *somewhere* after upgrading to Qt 5.7.1

[René J.V. Bertin]

For the sake of completeness, here are the QSP locations returned (with "XDG-compliant" writable locations), for 5.6.2 and 5.7.1 .

R.
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  DesktopLocation: "Desktop" = */Users/bertin/Desktop*
  DocumentsLocation: "Documents" = */Users/bertin/Documents*
  FontsLocation: "Fonts" = */Users/bertin/Library/Fonts* /Library/Fonts /System/Library/Fonts
  ApplicationsLocation: "Applications" = */Users/bertin/.local/share/applications* /opt/local/share/applications
  MusicLocation: "Music" = */Users/bertin/Music*
  MoviesLocation: "Movies" = */Users/bertin/Movies*
  PicturesLocation: "Pictures" = */Users/bertin/Pictures*
  TempLocation: "TemporaryItems" = */var/folders/j1/1439ppj08xj8h6006s6drbq00000gs/T*
  HomeLocation: "Home" = */Users/bertin*
  DataLocation: "Application Support" = */Users/bertin/.local/share/QtProject/qtdiag* /Library/Application Support/QtProject/qtdiag /opt/local/share/QtProject/qtdiag /opt/local/libexec/qt5/bin/
  AppLocalDataLocation: "Application Support" = */Users/bertin/.local/share/QtProject/qtdiag* /Library/Application Support/QtProject/qtdiag /opt/local/share/QtProject/qtdiag /opt/local/libexec/qt5/bin/
  CacheLocation: "Caches" = */Users/bertin/.cache/QtProject/qtdiag* /Users/bertin/.cache /Library/Caches/QtProject/qtdiag
  GenericDataLocation: "Application Support" = */Users/bertin/.local/share* /opt/local/share /Library/Application Support
  RuntimeLocation: "Application Support" = */var/folders/j1/1439ppj08xj8h6006s6drbq00000gs/T/runtime-bertin*
  ConfigLocation: "Preferences" = */Users/bertin/.config* /opt/local/etc/xdg
  DownloadLocation: "Downloads" = */Users/bertin/Downloads*
  GenericCacheLocation: "Caches" = */Users/bertin/.cache* /Users/bertin/.cache /Library/Caches
  GenericConfigLocation: "Preferences" = */Users/bertin/.config* /opt/local/etc/xdg
  AppDataLocation: "Application Support" = */Users/bertin/.local/share/QtProject/qtdiag* /Library/Application Support/QtProject/qtdiag /opt/local/share/QtProject/qtdiag /opt/local/libexec/qt5/bin/
  AppConfigLocation: "Preferences" = */Users/bertin/Library/Preferences/QtProject/qtdiag*
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  DesktopLocation: "Desktop" = */Users/bertin/Desktop*
  DocumentsLocation: "Documents" = */Users/bertin/Documents*
  FontsLocation: "Fonts" = */Users/bertin/Library/Fonts* /Library/Fonts /System/Library/Fonts
  ApplicationsLocation: "Applications" = */Users/bertin/.local/share/applications* /Users/bertin/Applications /opt/local/share/applications /Applications
  MusicLocation: "Music" = */Users/bertin/Music*
  MoviesLocation: "Movies" = */Users/bertin/Movies*
  PicturesLocation: "Pictures" = */Users/bertin/Pictures*
  TempLocation: "Temporary Items" = */var/folders/j1/1439ppj08xj8h6006s6drbq00000gs/T*
  HomeLocation: "Home" = */Users/bertin*
  DataLocation: "Application Support" = */Users/bertin/.local/share/QtProject/qtdiag* /Users/bertin/Library/Application Support/QtProject/qtdiag /Library/Application Support/QtProject/qtdiag /opt/local/share/QtProject/qtdiag /opt/local/libexec/qt5/bin/
  AppLocalDataLocation: "Application Support" = */Users/bertin/.local/share/QtProject/qtdiag* /Users/bertin/Library/Application Support/QtProject/qtdiag /Library/Application Support/QtProject/qtdiag /opt/local/share/QtProject/qtdiag /opt/local/libexec/qt5/bin/
  CacheLocation: "Caches" = */Users/bertin/.cache/QtProject/qtdiag* /Users/bertin/Library/Caches/QtProject/qtdiag /Users/bertin/.cache /Library/Caches/QtProject/qtdiag
  GenericDataLocation: "share" = */Users/bertin/.local/share* /Users/bertin/Library/Application Support /opt/local/share /Library/Application Support
  RuntimeLocation: "runtime-bertin" = */var/folders/j1/1439ppj08xj8h6006s6drbq00000gs/T/runtime-bertin* /Users/bertin/Library/Application Support
  ConfigLocation: ".config" = */Users/bertin/.config* /Users/bertin/Library/Preferences /opt/local/etc/xdg
  DownloadLocation: "Downloads" = */Users/bertin/Downloads*
  GenericCacheLocation: ".cache" = */Users/bertin/.cache* /Users/bertin/Library/Caches /Users/bertin/.cache /Library/Caches /System/Library/Caches
  GenericConfigLocation: ".config" = */Users/bertin/.config* /Users/bertin/Library/Preferences /opt/local/etc/xdg
  AppDataLocation: "Application Support" = */Users/bertin/.local/share/QtProject/qtdiag* /Users/bertin/Library/Application Support/QtProject/qtdiag /Library/Application Support/QtProject/qtdiag /opt/local/share/QtProject/qtdiag /opt/local/libexec/qt5/bin/
  AppConfigLocation: "Preferences" = */Users/bertin/Library/Preferences/QtProject/qtdiag*