g++ -Wl,-rpath-link,/home/cl/qt-everywhere-opensource-src-4.8.6/lib -Wl,--rpath=\$ORIGIN -Wl,-O1 -Wl,-rpath,/usr/local/Trolltech/Qt-4.8.6/lib -Wl,-rpath,/usr/local/Trolltech/Qt-4.8.6/lib -o ../spectrum .obj/release-shared/main.o .obj/release-shared/engine.o .obj/release-shared/frequencyspectrum.o .obj/release-shared/levelmeter.o .obj/release-shared/mainwidget.o .obj/release-shared/progressbar.o .obj/release-shared/settingsdialog.o .obj/release-shared/spectrograph.o .obj/release-shared/spectrumanalyser.o .obj/release-shared/tonegenerator.o .obj/release-shared/tonegeneratordialog.o .obj/release-shared/utils.o .obj/release-shared/waveform.o .obj/release-shared/wavfile.o .obj/release-shared/moc_engine.o .obj/release-shared/moc_levelmeter.o .obj/release-shared/moc_mainwidget.o .obj/release-shared/moc_progressbar.o .obj/release-shared/moc_settingsdialog.o .obj/release-shared/moc_spectrograph.o .obj/release-shared/moc_spectrumanalyser.o .obj/release-shared/moc_tonegeneratordialog.o .obj/release-shared/moc_waveform.o .obj/release-shared/qrc_spectrum.o -L/home/cl/qt-everywhere-opensource-src-4.8.6/lib -L.. -lfftreal -lQtMultimedia -L/home/cl/qt-everywhere-opensource-src-4.8.6/lib -L/usr/X11R6/lib -lQtGui -lQtCore -lpthread
make[3]: Leaving directory `/home/cl/qt-everywhere-opensource-src-4.8.6/demos/spectrum/app'
make[2]: Leaving directory `/home/cl/qt-everywhere-opensource-src-4.8.6/demos/spectrum'
make[1]: Leaving directory `/home/cl/qt-everywhere-opensource-src-4.8.6/demos'
是我权限没搞对，不过还是谢谢你，分数献上
追答嗯，很常见的问题。忘了加sudo。直接sudo !!吧
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