xdelta requires GDBM to implement some of its functions (namely xd_checkin() and xd_checkout() ), but the port wasn't detecting the fact that GDBM was properly installed on my machine. This broke other ports that depended on these functions being present so that xdelta was detected properly (e.g. gimp-devel). Fix: The only file that needed changing was xdelta's Makefile. Here's the patch: How-To-Repeat: Try building xdelta, or ports that depend on xdelta (e.g. gimp-devel).
Responsible Changed From-To: gnats-admin->ports ports issue
State Changed From-To: open->closed Patch applied, thanks. Gimp is now happy.