1) Installed MSYS
2) Tried this (Perl):
C:\>cpan install Date::Calc
CPAN: Storable loaded ok
Going to read C:\Perl\cpan\Metadata
Database was generated on Sat, 10 Mar 2007 12:08:09 GMT
Running install for module install
Running make for J/JU/JUNOS/junoscript-perl-6.4I0.tar.gz
CPAN: checksum security checks disabled because Digest::SHA not installed.
Please consider installing the Digest::SHA module.
Scanning cache C:\Perl/cpan/build for sizes
CPAN: Compress::Zlib loaded ok
Uncompressed C:\Perl\cpan\sources\authors\id\J\JU\JUNOS\junoscript-perl-6.4I0.ta
r.gz successfully
Using Tar:C:\msys\1.0\bin\tar.EXE xvf "junoscript-perl-6.4I0.tar":
junoscript-perl-6.4I0/
junoscript-perl-6.4I0/lib/
junoscript-perl-6.4I0/lib/JUNOS/
junoscript-perl-6.4I0/lib/JUNOS/Access/
junoscript-perl-6.4I0/lib/JUNOS/Access/stubs.pm
/usr/bin/tar: Skipping to next header
/usr/bin/tar: Error exit delayed from previous errors
Couldn't untar junoscript-perl-6.4I0.tar
Logged In: YES
user_id=87962
Originator: YES
Workaround: use the tar from http://unxutils.sourceforge.net/
BTW, the OS is Windows 2003.