py25-pygraphviz faild on snow leopard

[andrzej.sliwa@…]

sudo port install py25-pygraphviz haves errors:

---> Computing dependencies for py25-pygraphviz ---> Building py25-pygraphviz Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_python_py25-pygraphviz/work/pygraphviz-0.99" && /opt/local/bin/python2.5 setup.py --no-user-cfg build " returned error 1 Command output: Package libagraph was not found in the pkg-config search path. Perhaps you should add the directory containing `libagraph.pc' to the PKG_CONFIG_PATH environment variable No package 'libagraph' found Package libagraph was not found in the pkg-config search path. Perhaps you should add the directory containing `libagraph.pc' to the PKG_CONFIG_PATH environment variable No package 'libagraph' found Trying pkg-config Trying dotneato-config Failed to find dotneato-config

Your graphviz installation could not be found.

Either the graphviz package is missing on incomplete (binary packages graphviz-dev or graphviz-devel missing?).

If you think your installation is correct you will need to manually change the include_path and library_path variables in setup.py to point to the correct locations of your graphviz installation.

The current setting of library_path and include_path is: library_path=None include_path=None

Traceback (most recent call last):

File "setup.py", line 120, in <module>

raise OSError,"Error locating graphviz."

OSError: Error locating graphviz.

Error: Status 1 encountered during processing.