Link errors on win32

After patching postmaster.c (see previous post) I'm unable to link on win32
(mingw). I get the following errors:

gcc -O2 -fno-strict-aliasing -Wall -Wmissing-prototypes -Wmissing-declaratio
ns -L../../src/port -o postgres.exe -Wl,--base-file,postgres.base
postgres.exp access/SUBSYS.o bootstrap/SUBSYS.o catalog/SUBSYS.o
parser/SUBSYS.o commands/SUBSYS.o executor/SUBSYS.o lib/SUBSYS.o
libpq/SUBSYS.o main/SUBSYS.o nodes/SUBSYS.o optimizer/SUBSYS.o port/SUBSYS.o
postmaster/SUBSYS.o regex/SUBSYS.o rewrite/SUBSYS.o storage/SUBSYS.o
tcop/SUBSYS.o utils/SUBSYS.o
../../src/timezone/SUBSYS.o -lz -lreadline -lwsock32 -lm -lpgport -lws2_32
executor/SUBSYS.o(.text+0x10417):nodeSeqscan.c: undefined reference to `nth'
executor/SUBSYS.o(.text+0x134a6):nodeSubqueryscan.c: undefined reference to
`nth'
port/SUBSYS.o(.text+0x3be):pg_sema.c: undefined reference to `pqkill'
storage/SUBSYS.o(.text+0x4363):fd.c: undefined reference to
`is_absolute_path'
storage/SUBSYS.o(.text+0x7fc5):pmsignal.c: undefined reference to `pqkill'
storage/SUBSYS.o(.text+0xd129):proc.c: undefined reference to `pqkill'
utils/SUBSYS.o(.text+0x24f58):not_in.c: undefined reference to `llast'
utils/SUBSYS.o(.text+0x24f70):not_in.c: undefined reference to `ltruncate'
utils/SUBSYS.o(.text+0x6c2cc):fmgr.c: undefined reference to `nth'
make[2]: *** [postgres] Error 1
make[2]: Leaving directory `/ws/pgsql/src/backend'

Regards,

Thomas Hallgren