[Midnightbsd-cvs] mports: Makefile: update autoconf version, mark unsafe for jobs

[laffer1 at midnightbsd.org]

Log Message:
-----------
update autoconf version, mark unsafe for jobs

Modified Files:
--------------
    mports/devel/libthai:
        Makefile (r1.7 -> r1.8)
        (http://cvsweb.midnightbsd.org/mports/devel/libthai/Makefile?r1=1.7&r2=1.8)