Installation and Upgrade • Re: Zimbra 10 FOSS Installation Guide

Code:

sub version_cmp($$){  my $left = shift;  my $right = shift;  $left =~ s/ALPHA/0./;  $right =~ s/ALPHA/0./;  $left =~ s/BETA/1./;  $right =~ s/BETA/1./;  $left =~ s/RC/2./;  $right =~ s/RC/2./;  $left =~ s/GA/3./;  $right =~ s/GA/3./;  my @left_a = split(/[._]/, $left, 5);  my @right_a = split(/[._]/, $right, 5);  for( my $i = 0; $i < 5; ++$i )  {    $left_a[$i] ||= 0;    $right_a[$i] ||= 0;    return -1     if( $left_a[$i] < $right_a[$i] );    return 1      if( $left_a[$i] > $right_a[$i] );  }  return 0;}