Compile error for nsd-3.2 svn rev >3620

I'm getting an error compiling nsd-3.2 with any svn rev greater than
3620 (3620 compiles fine) on a non-ipv6 enabled x64 host (the system
has no ipv6 capabilities compiled in). NSD is being properly
configured with --disable-ipv6.
The latest rev 3624 works fine on hosts, both x86 and x64, that have
ipv6 capabilities.
Here's what I get:

Actually has nothing to with ipv6 capabilities of the host. The
compile simply fails when svn rev >3620 is configured with
--disable-ipv6.

Hi Chris,