qt for x86_64

[Timothy Murphy]

I found that when I tried to configure a kernel with "make xconfig" 
in the x86_64 distribution, it failed (although "make menuconfig" worked).
The error was 
=======================================
[tim@blanche linux-2.6.12-rc4]$ make xconfig
  HOSTCXX scripts/kconfig/qconf.o
  HOSTLD  scripts/kconfig/qconf
/usr/bin/ld: cannot find -lqt
collect2: ld returned 1 exit status
make[1]: *** [scripts/kconfig/qconf] Error 1
make: *** [xconfig] Error 2
=======================================

As far as I could see, the reason for this error
was that the file scripts/kconfig/.tmp_qtcheck 
(created by scripts/kconfig/Makefile) read:
=======================================
[tim@blanche linux-2.6.12-rc4]$ cat scripts/kconfig/.tmp_qtcheck
QTDIR=/usr/lib64/qt-3.3
QTLIBPATH=/usr/lib64/qt-3.3/lib/../lib64
QTLIB=qt
=======================================

When I changed this to
=======================================
[tim@blanche linux-2.6.12-rc4]$ cat scripts/kconfig/.tmp_qtcheck
QTDIR=/usr/lib64/qt-3.3
QTLIBPATH=/usr/lib64/qt-3.3/lib/
QTLIB=qt-mt
=======================================
(by comparison with the same file on an i386 system)
the command "make config" seemed to work OK.

Has this been noted somewhere;
or is there something wrong with my setup?