I am installing qt mobility tool kit but it shows an error message :
1.2.0/src/multimedia' make[2]: Warning: File Makefile' has modification time 1.1e+04 s in the future g++ -c -pipe -g -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC -DQT_WEBKIT -DQT_SHARED -DQTM_PLUGIN_PATH=\"/home/aboobacker/Desktop/qt-mobility-opensource-src-1.2.0/install/plugins\" -DQT_MAKEDLL -DQT_BUILD_MULTIMEDIA_LIB -DHAS_ALSA -DQT_MULTIMEDIA_QMEDIAPLAYER -DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtOpenGL -I/usr/include/qt4 -I../global -I. -Iaudio -Ivideo -Ieffects -I/usr/X11R6/include -I../../build/Debug/QtMultimediaKit/moc -o ../../build/Debug/QtMultimediaKit/qaudiodevicefactory.o audio/qaudiodevicefactory.cpp In file included from audio/qaudiodevicefactory.cpp:60:0: audio/qaudiodeviceinfo_alsa_p.h:57:28: fatal error: alsa/asoundlib.h: No such file or directory compilation terminated. make[2]: *** [../../build/Debug/QtMultimediaKit/qaudiodevicefactory.o] Error 1 make[2]: Leaving directory/home/aboobacker/Desktop/qt-mobility-opensource-src-1.2.0/src/multimedia' make[1]: * [sub-multimedia-make_default] Error 2 make[1]: Leaving directory `/home/aboobacker/Desktop/qt-mobility-opensource-src-1.2.0/src' make: * [sub-src-make_default-ordered] Error 2 aboobacker@aboobacker-desktop:~/Desktop/qt-mobility-opensource-src-1.2.0$
How to solve this?