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i386 bsp issues

Hi all,
  I attempted to compile the i386-rtems bsp manually, using the configure
script, using the command:

../rtems-4.5.0/configure --target=i386-rtems --enable-posix

  I modified the pc386/lib/bsp_specs, removing the entries for crti.o and
crtn.o (it looks suspiciously like the bsp_specs from rtems-4.0.0). It
compiles further now, but then it bombs out with the following errors:

../../../../../../pc386/lib/librtemsall.a(bootcard.o): In function `boot_card':
bootcard.c:108: undefined reference to `bsp_start'
bootcard.c:122: undefined reference to `_fini'
bootcard.c:123: undefined reference to `_init'

  A monster grep shows bspstart.c has at least the first routine, but I
could not locate a bspstart.h file to #include in the rest of the system.
I do not see how the functions defined in bspstart.c could be used
otherwise, unless it's built to a .o and linked against directly.

  Any ideas where to go from here?

Thanks in advance,