[exim] problem compiling exim 4.51 on SuSE

I am trying to compile exim 4.51 and failing in the first hurdle. I am
getting the following:
/bin/rm -rf ../drtables.o
make[2]: Leaving directory
`/usr/exim/BUILD/exim-4.50/build-Linux-i386/auths'

make[1]: *** No rule to make target `lookups/lookups.a', needed by
`exim'. Stop.
make[1]: Leaving directory `/usr/exim/BUILD/exim-4.50/build-Linux-i386'

I saw at least other person had the same problem. Any idea?

Thanks

Sujit Choudhury
University of Westminster