When execute 'make xconfig' in /usr/src/linux,it always prompt that :

Unable to find the QT installation. Please make sure that the
* QT development package is correctly installed and the QTDIR
* environment variable is set to the correct location.

but in fact I think I have installed qt ,my qterm and kde runs quite well and that's my output of "dpkg -S qt"(I'm using debian,and the output indicate what I have installed related to qt)


libc6
qt3-dev-tools
qterm
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3c102
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qterm
libqt3-headers
libqt3-headers
libqt3-headers
tetex-base
qt3-dev-tools
libqt3-headers
qt3-dev-tools
tetex-base
kappfinder
qterm
libqt3-headers
libqt3-headers
libqt3c102
qterm
libqt3-headers
qt3-dev-tools
qterm
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qterm
libqthreads-12
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
octave2.1
libqt3-headers
libqt3c102
libqt3c102-mt
qt3-dev-tools
octave2.1
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
kdelibs-data
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qterm
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qterm
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
tetex-base
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
qterm
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
tetex-base
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools, libqt3c102, libqt3c102-mt
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qterm
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3c102, libqt3c102-mt
qt3-dev-tools
qterm
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qterm
libqt3-headers
libqt3-headers
qterm
libc6
qt3-dev-tools
qt3-dev-tools
qterm
libqt3-headers
libqt3-headers
libqt3-headers
libqt3c102-mt
libqthreads-12
libqt3-headers
qterm
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3c102, libqt3c102-mt
libqt3-headers
libqt3-headers
qt3-dev-tools
qterm
libqt3-headers
qt3-dev-tools
libqt3c102-mt
qterm
qterm
qterm
qterm
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3c102-mt
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3c102-mt
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3c102-mt
qt3-dev-tools
qt3-dev-tools
qterm
qterm
qt3-dev-tools
libqt3-headers
qterm
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
kdebase-data
qt3-dev-tools
libqt3-headers
libc6
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qterm
tetex-base
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
kdelibs-data
libqt3-headers
libc6
qt3-dev-tools
libqt3-headers
libqthreads-12
libqt3-headers
libqt3-headers
qterm
tetex-base
tetex-base
qterm
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3c102
qt3-dev-tools
kdelibs-data
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qterm
libqt3-headers
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libarts1
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
tetex-base
libqt3-headers
libqt3-headers
libqt3c102-mt
libqt3-headers
qt3-dev-tools
qterm
libqt3-headers
libqt3-headers
libqt3c102
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qterm
libqt3-headers
qt3-dev-tools
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
tetex-base
qterm
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qterm
libqt3-headers
libqt3-headers
libqt3-headers
tetex-base
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
tetex-base
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3c102-mt
libqt3-headers
libqt3-headers
libqt3c102
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
kdelibs-data
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3c102, libqt3c102-mt
qt3-dev-tools
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qterm
libqt3c102-mt
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqthreads-12
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
tetex-base
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
kcontrol
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
tetex-base
libqt3-headers
tetex-base
qterm
qt3-dev-tools
libqt3-headers
qt3-dev-tools
kdelibs-data
qterm
libqt3-headers
libqt3-headers
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libxine1
libqt3-headers
qt3-dev-tools
libqt3-headers
tetex-base
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
tetex-base
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3c102-mt
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
evolution
qterm
tetex-base
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qt3-dev-tools
qterm
libqt3-headers
qterm
libqt3-headers
libqt3-headers
tetex-base
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qterm
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3c102
qt3-dev-tools
libqt3c102, libqt3c102-mt
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3c102-mt
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qterm
tetex-base
libqt3-headers
qt3-dev-tools
tetex-base
qt3-dev-tools
qterm
qt3-dev-tools
libqt3-headers
tetex-base
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qterm
libqt3-headers
libqt3-headers
qterm
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
tetex-base
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
evolution
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3c102-mt
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
qterm
qterm
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libc6
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qterm
libqt3-headers
tetex-base
tetex-base
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
qterm
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qterm
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libc6
libqthreads-12
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
qterm
qt3-dev-tools
qt3-dev-tools
libqt3-headers
tetex-base
qterm
qterm
libqt3-headers
libqt3-headers
octave2.1
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
tetex-base
tetex-base
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libxine1
qt3-dev-tools
qterm
libqt3-headers
qt3-dev-tools
libqt3-headers
qt3-dev-tools
qterm
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libarts1
libqt3-headers
qterm
libqt3-headers
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
libqt3c102
qt3-dev-tools
libqt3-headers
libqt3-headers
kdelibs-data
qt3-dev-tools
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
tetex-base
qterm
libqt3-headers
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
libqt3-headers
qt3-dev-tools
qt3-dev-tools
libqt3-headers
qterm
libqt3-headers
libqt3c102
qterm
qt3-dev-tools
qt3-dev-tools
libqt3c102
tetex-base
qterm
qt3-dev-tools
qt3-dev-tools
libqt3c102
tetex-base
qt3-dev-tools
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3-headers
libqt3c102-mt
libqt3-headers
qterm
qt3-dev-tools
libqt3-headers
libqt3-headers
libqt3-headers

In addtion,neither can I use make gconfig ,and I know there is a alternative: "make menuconfig",but I just want to try xconfig . Any help will be apreciated!

Yeah menuconfig is for veteran kernel users IMO because it doesn't show any descriptions on the kernel options but gconfig, xconfig do very extensively.

If you have all thoose files you just posted then you should be able to. For gconfig you need gtk devel or gnome devel one of the two. I usually just apt-cache search or use synaptic to search for any devel packages I need when I get that error.

If all else fails, Im sure you can find some kind of full description for all the kernel options so you at least know what everything is and does and then just use menuconfig. Not sure where to find something like that but maybe google it.