In file included from ../src/qtsingleapplication.cpp:49:0: ../src/qtlocalpeer.h:52:26: fatal error: qtlockedfile.h: No such file or directoryIn file included from moc_qtlocalpeer.cpp:10:0: ../src/qtlocalpeer.h:52:26: fatal error: qtlockedfile.h: No such file or directoryIn file included from ../src/qtlocalpeer.cpp:48:0: ../src/qtlocalpeer.h:52:26: fatal error: qtlockedfile.h: No such file or directory compilation terminated. compilation terminated. compilation terminated. make[1]: *** [qtsingleapplication.o] Error 1 After installing dev-qt/qtlockedfile-2.4.1 it builds fine, /usr/lib64/libQtSolutions_SingleApplication-2.6.so.1.0.0 links to libQtSolutions_LockedFile-2.4.so.1, so you should add this dep with sub-slot.
Thanks, dependency added in CVS now.