[dev-qt/qtgui] Pin virtual/jpeg SLOT to 0.

Package-Manager: portage-2.1.13.5
[dev-qt/qtwebkit] Pin virtual/jpeg SLOT to 0.

Package-Manager: portage-2.1.13.5
[app-text/poppler] Pin virtual/jpeg SLOT to 0.

Package-Manager: portage-2.1.13.5