latest cygwin build failure

with CVS tip in contrib/spi:

ccache gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wendif-labels 
-fno-strict-aliasing  -DREFINT_VERBOSE -I. -I../../src/include   -c -o 
timetravel.o timetravel.c
dlltool --export-all --output-def timetravel.def timetravel.o
dllwrap -o timetravel.dll --def timetravel.def timetravel.o 
../../src/utils/dllinit.o -L../../src/backend -lpostgres
timetravel.o(.text+0x10cb):timetravel.c: undefined reference to 
`_pg_strcasecmp'
collect2: ld returned 1 exit status
dllwrap: gcc exited with status 1
make[1]: *** [timetravel.dll] Error 1
rm refint.o autoinc.o timetravel.o moddatetime.o insert_username.o
make[1]: Leaving directory 
`/home/adunstan/pgbf/root/HEAD/pgsql.blurfl/contrib/spi'

cheers

andrew