Error-out on compiling current CVS: preproc

Folks,

Got the following bomb trying to build from current CVS (August 8th):

make[4]: Leaving directory `/usr/src/postgresql-8.0b/src/interfaces/ecpg/
compatlib'
make -C preproc all
make[4]: Entering directory `/usr/src/postgresql-8.0b/src/interfaces/ecpg/
preproc'
make -C ../../../../src/port all
make[5]: Entering directory `/usr/src/postgresql-8.0b/src/port'
make[5]: Nothing to be done for `all'.
make[5]: Leaving directory `/usr/src/postgresql-8.0b/src/port'
bison -y -d  preproc.y
preproc.y:4850.24-4853.22: type clash (`str' `keyword') on default action
preproc.y:4853.23: parse error, unexpected ":", expecting ";" or "|"
make[4]: *** [preproc.h] Error 1
make[4]: Leaving directory `/usr/src/postgresql-8.0b/src/interfaces/ecpg/
preproc'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/usr/src/postgresql-8.0b/src/interfaces/ecpg'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/usr/src/postgresql-8.0b/src/interfaces'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/usr/src/postgresql-8.0b/src'
make: *** [all] Error 2

Setup:
SuSE 9.0, GCC 3.3.1, Bison 1.75 on Celeron Thinkpad
Basic configure and make, no options except --prefix=/usr/local/pg80b

-- 
-Josh BerkusAglio Database SolutionsSan Francisco