xconfig does not work

I am preparing to compile a new kernel, but qconfig will not cooperate, I (think I) have installed all the devel packs needed, but make xconfig does still not work. this is the output I get:

# make xconfig
  HOSTCXX scripts/kconfig/qconf.o
In file included from /usr/lib/qt3//include/qconfig.h:2,
                 from /usr/lib/qt3//include/qglobal.h:758,
                 from /usr/lib/qt3//include/qobjectdefs.h:42,
                 from /usr/lib/qt3//include/qwindowdefs.h:43,
                 from /usr/lib/qt3//include/qwidget.h:42,
                 from /usr/lib/qt3//include/qdesktopwidget.h:40,
                 from /usr/lib/qt3//include/qapplication.h:42,
                 from scripts/kconfig/qconf.cc:6:
/usr/include/multiarch-dispatch.h:21:58: error: multiarch-x86_64-linux/qconfig.h: No such file or directory
make[1]: *** [scripts/kconfig/qconf.o] Error 1
make: *** [xconfig] Error 2

I have tried to reinstall libqt3-devel, but cannot reinstall multiarch-utils without reinstalling half my system.

anyone have any idea what is wrong?

solved this one: I needed lib64qt3-devel as well.

i was getting this error.

scripts/kconfig/qconf.cc:7:21: fatal error: qglobal.h: No such file or directory
compilation terminated.

it was caused by a change in the version of qt i was using.

make distclean

fixed things so that

make xconfig

would work. this is for other people searching for the same error. i spent a few days fretting over this, and building different qt's.