While trying to build editors/dasher (which is part of the gnome
meta-pkg), I get the following death during configure:

[...]
checking how to link with libintl... -lintl
checking for i386--netbsdelf-g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking dependency style of g++... gcc3
checking for XML_Parse in -lexpat... no
configure: error: Expat library not found.
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/editors/dasher
*** Error code 1