port <py-libxml2> error

[gahn]

Hi all:

I got problem for compiling "py-libxml2":

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path -Wl,/usr/local/lib -L/usr/local/lib /usr/local/lib/libxml2.so -lz /usr/local/lib/libiconv.so -lpth -lutil -lm -lpython2.6    -Wl,-soname -Wl,libxml2mod.so -o .libs/libxml2mod.so
/usr/bin/ld: cannot find -lpth
gmake[1]: *** [libxml2mod.la] Error 1
gmake[1]: Leaving directory `/usr/ports/textproc/py-libxml2/work/libxml2-2.7.6/python'
gmake: *** [all-recursive] Error 1
*** Error code 1

Stop in /usr/ports/textproc/py-libxml2.

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the error seems to point the issue to python. i installed "python2.6" since some other packages require newer version of python2.

how could i fix this problem?

thanks