make: *** pg_xlogdump: No such file or directory. Stop.

when build the head contrib,I get follow error:
....
make[1]: Entering directory `/data/myenv/postgresql/contrib/pgstattuple'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/data/myenv/postgresql/contrib/pgstattuple'
make -C pg_xlogdump all
make: *** pg_xlogdump: No such file or directory. Stop.
make: *** [all-pg_xlogdump-recurse] Error 2

[jovz(at)rasde contrib]$ uname -a
Linux rasde 3.0.18-x86_64-linode24 #1 SMP Mon Jan 30 14:25:46 EST 2012
x86_64 x86_64 x86_64 GNU/Linux

some build farm animals also complain this error:
http://buildfarm.postgresql.org/cgi-bin/show_status.pl

regards,
--
Jov
blog: http:amutu.com/blog <http://amutu.com/blog>