perl5.000 patch.0l: MakeMaker 4.085 and upgrade Configure to dist3 PL 51.

perl5.000 patch.0l: MakeMaker 4.085 and upgrade Configure to dist3 PL 51.

Here's what's new:

    Configure
        Generated by metaconfig PL 51.
        Correctly set ./mips on a MIPS system.
        Improved (we hope) handling of $archname.
    MANIFEST
    MANIFEST.new
        Made .SH files out of h2xs and makeaperl so that they get the
        correct path-to-perl at the top.
    Makefile.SH
        Propagate $(perllib) to extensions.
    U/dist3_051.patches
        Two patches to apply on top of metaconfig PL 51.  I've sent
            them off for inclusion in the next metaconfig update.
    config_h.SH
    config.H
        Regenerated.  Only the order of elements has changed.
    ext/DB_File/Makefile.PL
    ext/GDBM_File/Makefile.PL
    ext/NDBM_File/Makefile.PL
        Add -L/usr/local/lib to LIBS variable.
    ext/POSIX/POSIX.xs
        Place #ifdef around FD_CLOEXEC (needed for Apollo).
    ext/SDBM_File/sdbm/Makefile.PL
        Simplified, thanks to MakeMaker enhancements.
    ext/util/make_ext
        Pass through $(perllib) argument for cflags.
    h2xs.SH
        Changed from h2xs to h2xs.SH.  Now finds correct path to perl.
    hints/next_3_2.sh
        Updated for hppa.
    hints/solaris_2.sh
        Remove potentially problematic -lmalloc from $libswanted.
    hints/unicos.sh
        Look in /usr/include/rpcsvc for dbm.h.
    installperl
        Install h2xs.
    lib/Cwd.pm
        Use 'my' variable to avoid clobbering $_.
    lib/ExtUtils/MakeMaker.pm
        Upgraded from 4.06 to 4.085.
        Lots of documentation improvements.
        EXE_FILES to refer to an array of executable files to install.
        Reduce chatter during build process.
        Don't count a useful -L/path option as a successful search for
            a particular library.
        Cleanup handling of aix external symbols.
        Create/update perllocal.pod to indicate what we've done.
    makeaperl.SH
        Changed from makeaperl to makeaperl.SH.  Now finds correct path
            to perl.
    x2p/util.c
        Delete unused setenv() and envix() functions.
    x2p/util.h
        Delete unused setenv() and envix() prototypes.
    vms/config.vms
        Define I_SYS_STAT and I_SYS_TYPES.