kernel xconfiguration failure in ia64

[Louis Laborde <llaborde cup hp com>]

Using the kernel sources from kernel-source-2.4.21-1.1931.2.349.2.2.ent
and trying to configure the kernel before rebuilding fails as shown
below:

[root hpntc068 linux-2.4]# make xconfig
rm -f include/asm
( cd include ; ln -sf asm-ia64 asm)
make -C scripts kconfig.tk
make[1]: Entering directory `/usr/src/linux-2.4.21-1.1931.2.349.2.2.ent/scripts'
gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -c -o tkparse.o tkparse.c
gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -c -o tkcond.o tkcond.c
gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -c -o tkgen.o tkgen.c
gcc -o tkparse tkparse.o tkcond.o tkgen.o
cat header.tk >> ./kconfig.tk
./tkparse < ../arch/ia64/config.in >> kconfig.tk
drivers/net/wan/Config.in: 44: can't handle dep_bool/dep_mbool/dep_tristate condition
make[1]: *** [kconfig.tk] Error 1
make[1]: Leaving directory `/usr/src/linux-2.4.21-1.1931.2.349.2.2.ent/scripts'
make: *** [xconfig] Error 2

Is there anything wrong with drivers/net/wan/Config.in?

Thanks.

Louis LABORDE