problems building boost-headers

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

Using pkgsrc HEAD on -current (somewhat out of date), I see this:

boost_base=./../..
checking original configuration ... done
checking new configuration ... done
configure: creating ./config.status
config.status: executing default commands

Adjustments to boost configuration have been written to
user.hpp.  Copy this to boost/config/user.hpp to use "as is",
or define BOOST_SITE_CONFIG to point to its location.

TREAT THIS FILE WITH CARE.
Autoconf generated options are not infallible!

/bin/cp -f /usr/pkgsrc/devel/boost-headers/work/boost_1_38_0/libs/config/user.hp
p /usr/pkgsrc/devel/boost-headers/work/boost_1_38_0/boost/config/user.hpp
===> Building for boost-headers-1.38.0nb1
=> Unwrapping files-to-be-installed.
INFO: [subst.mk:unwrap] Nothing changed in ./tools/jam/src/boehm_gc/bdw-gc.pc.
===> Installing for boost-headers-1.38.0nb1
python: not found
WARNING: No python installation configured and autoconfiguration
         failed.  See http://www.boost.org/libs/python/doc/building.html
         for configuration instructions or pass --without-python to
         suppress this message and silently skip all Boost.Python targets

I do have python25 installed and PYTHON_VERSION_DEFAULT=25 in
/etc/mk.conf.


                --Steve Bellovin, http://www.cs.columbia.edu/~smb