libc6 broken?

[Ulrich Wiederhold <U.Wiederhold@gmx.net>]

Hello,
I upgraded to unstable and now, my libc6 seems to be borken.

If I try a ./configure or a "make xconfig" with a new Kernel, I get this
error-msg:
/lib/libc.so.6: undefined reference to `_dl_debug_mask@GLIBC_2.2.3'
/lib/libc.so.6: undefined reference to `_dl_debug_printf@GLIBC_2.2.3'

If I try a "make menuconfig", I get:
debian:/usr/src/linux-2.4.3# make menuconfig
rm -f include/asm
( cd include ; ln -sf asm-i386 asm)
make -C scripts/lxdialog all
make[1]: Entering directory `/usr/src/linux-2.4.3/scripts/lxdialog'
/lib/libc.so.6: undefined reference to `_dl_debug_mask@GLIBC_2.2.3'
/lib/libc.so.6: undefined reference to `_dl_debug_printf@GLIBC_2.2.3'
collect2: ld returned 1 exit status

>> Unable to find the Ncurses libraries.
>>
>> You must have Ncurses installed in order
>> to use 'make menuconfig'

make[1]: *** [ncurses] Error 1
make[1]: Leaving directory `/usr/src/linux-2.4.3/scripts/lxdialog'
make: *** [menuconfig] Error 2


I reinstalled my ncurseslibs and my libc6 packages, libstdc++-2.10-glibc
and so on, but still get the same error.

Any ideas?
(Using an upgraded unstable from today, did a dist-upgrade too)

Uli