Snapshot version is 24.3.50.xxx, so check for < 24.3.50.
Deal with doxygen update. Bump revision.
Don't force enable NETISO.
Fix build with Clang.
Regen.
Don't pollute /tmp and mysteriously fail, if the directory is still
populated from an earlier build.
Kill the .Dt override and restore installation a normal man page.
Fix PLIST for Python 2.6.
Don't override IBOutlet and IBAction on NetBSD, the compiler has them
already. Bump revision.
Derive from NSObject to fix clang build.
Include uvm/uvm_extern.h if it exists. Required for NetBSD/current.