example MAKE_ENV+=FOO=${BAR} is changed to MAKE_ENV+=FOO=${BAR:Q}. Some other changes are outlined in http://mail-index.netbsd.org/tech-pkg/2005/12/02/0034.html
add -DBIND_8_COMPAT to CFLAGS under Darwin, and make sure T_SRV is defined
Part of the fix adds <sys/time.h> to ares.h to make it get fd_set on more platforms, so bump PKGREVISION.