Problem building pgadmin

Hi all,

I haven't tried building PgAdmin in quite a while now, so have started
from scratch again.  I seem to be getting the following problem:

make  install-data-hook
make[3]: Entering directory `/home/thom/Development/pgadmin3'
chmod 0666 //home/thom/Development/pgadmin/share/pgadmin3/docs/en_US/pgadmin3.hhp.cached
chmod: cannot access
`//home/thom/Development/pgadmin/share/pgadmin3/docs/en_US/pgadmin3.hhp.cached':
No such file or directory
make[3]: *** [install-data-hook] Error 1
make[3]: Leaving directory `/home/thom/Development/pgadmin3'
make[2]: *** [install-data-am] Error 2
make[2]: Leaving directory `/home/thom/Development/pgadmin3'
make[1]: *** [install-am] Error 2
make[1]: Leaving directory `/home/thom/Development/pgadmin3'
make: *** [install-recursive] Error 1

The pgadmin3.hhp.cached file used to exist in that directory until
mid-2011 when it was removed.  Obviously it can't be critical as
otherwise it wouldn't still be gone, but it keeps looking for it.

What am I doing wrong?

--
Thom