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.

1 files changed, 7 insertions, 6 deletions

diff --git a/lib/Cwd.pm b/lib/Cwd.pm
index 9aa57ecad4..b27e088847 100644
--- a/lib/Cwd.pm
+++ b/lib/Cwd.pm
@@ -85,22 +85,23 @@ sub fastcwd {
 
     ($cdev, $cino) = stat('.');
     for (;;) {
+	my $direntry;
 	($odev, $oino) = ($cdev, $cino);
 	chdir('..');
 	($cdev, $cino) = stat('.');
 	last if $odev == $cdev && $oino == $cino;
 	opendir(DIR, '.');
 	for (;;) {
-	    $_ = readdir(DIR);
-	    next if $_ eq '.';
-	    next if $_ eq '..';
+	    $direntry = readdir(DIR);
+	    next if $direntry eq '.';
+	    next if $direntry eq '..';
 
-	    last unless defined;
-	    ($tdev, $tino) = lstat($_);
+	    last unless defined $direntry;
+	    ($tdev, $tino) = lstat($direntry);
 	    last unless $tdev != $odev || $tino != $oino;
 	}
 	closedir(DIR);
-	unshift(@path, $_);
+	unshift(@path, $direntry);
     }
     chdir($path = '/' . join('/', @path));
     $path;