rebuild error for 2.6.18 plb_temac driver from EDK

[robert corley]

Can anyone help me out with this message?  It must be simple but I just am not familiar enough
with the kernel build process to recognize the error:

  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CHK     include/linux/compile.h
dnsdomainname: Unknown host
make[2]: *** No rule to make target `drivers/xilinx_edk/xilinx_syms.o', needed by `drivers/xilinx_edk/built-in.o'.  Stop.
make[1]: *** [drivers/xilinx_edk] Error 2
make: *** [drivers] Error 2

# Linux file to EXPORT_SYMBOL all of the Xilinx entries.
obj-$(CONFIG_XILINX_EDK) := xilinx_syms.o
#
# # The Xilinx OS independent code.
obj-$(CONFIG_XILINX_EDK) += xbasic_types.o \
                            xdmav3.o xdmav3_intr.o xdmav3_selftest.o xdmav3_simple.o xdmav3_sg.o \
                            xipif_v1_23_b.o \
                            xpacket_fifo_l_v2_00_a.o xpacket_fifo_v2_00_a.o \
                            xutil_memtest.c xversion.o