error during RedBoot build

I am trying to build RedBoot for the Cyclone II 2C35. I get the following error during the build.

/cygdrive/c/eCos/orca/lib/std_2C35_install/lib/libtarget.a(kernel_intr.o)(.text._ZN13Cyg_Interrupt17call_pending_DSRsEv+0x0): In function `Cyg_Interrupt::call_pending_DSRs()':

make[1]: Leaving directory `/cygdrive/c/eCos/orca/lib/std_2C35_build/redboot/current'

: undefined reference to `hal_interrupt_stack_call_pending_DSRs'

make: Leaving directory `/cygdrive/c/eCos/orca/lib/std_2C35_build'

/cygdrive/c/eCos/orca/lib/std_2C35_install/lib/libtarget.a(kernel_intr.o)(.text._ZN13Cyg_Interrupt17call_pending_DSRsEv+0x4): In function `_GLOBAL__D.12000__ZN13Cyg_Interrupt15disable_counterE':

/cygdrive/c/altera/kits/nios2/components/ecos/ecos-current/packages/kernel/current/src/intr/intr.cxx:394: undefined reference to `hal_interrupt_stack_call_pending_DSRs'

collect2: ld returned 1 exit status

make[1]: *** [/cygdrive/c/eCos/orca/lib/std_2C35_install/bin/redboot.elf] Error 1

make: *** [build] Error 2

Has anyone run across this?

Has anyone been able to build RedBoot for the Altera Nios2 CycloneII 2C35?

Thanks.