Quick history - ports
1998 my first commit to bsd.port.mk
2000 start splitting documentation to bsd.port.mk(5)
2000 fake (destdir) infrastructure
2000 flavors, multi-packages v1
2001 new dependencies, modules
2004 full separation of variables and targets
2004 locks
2004 pkg_create substitutes plists
2004 wantlibs
2005 SHARED_LIBS control
2006 multi-packages v2
2010 new depends v2
2011 speed up and cache depends
2011 everything documented