Bug 107718 pt 2 - use subtraction instead of the ~ operator, which older

mysql versions don't support. Remove the checksetup.pl restriction, too.

r=jake x2

webtools/bugzilla/checksetup.pl

@@ -773,15 +773,7 @@ my $drh = DBI->install_driver($db_base)
 if ($my_db_check) {
     # Do we have the database itself?
 
-    # XXX - as part of the fix for dataloss bug 107718, we need the ~ 
-    # operator, which isn't available in earlier versions, despite what
-    # the docs say. This is temporary, as we won't need bit fiddling
-    # once bug 60822 is fixed.
-    # A requirement for 3.23.x may become permenant though - see
-    # http://bugzilla.mozilla.org/show_bug.cgi?id=87958
-    my $sql_want = "3.23.5";
-
-    #my $sql_want = "3.22.5";  # minimum version of MySQL
+    my $sql_want = "3.22.5";  # minimum version of MySQL
 
 # original DSN line was:
 #    my $dsn = "DBI:$db_base:$my_db_name;$my_db_host;$my_db_port";

webtools/bugzilla/process_bug.cgi

@@ -43,7 +43,8 @@ use vars %::versions,
     %::legal_platform,
     %::legal_priority,
     %::target_milestone,
-    %::legal_severity;
+    %::legal_severity,
+    %::superusergroupset;
 
 my $whoid = confirm_login();
 
@@ -563,7 +564,9 @@ if($::usergroupset ne '0') {
     }
     if ($groupAdd ne "0" || $groupDel ne "0") {
         DoComma();
-        $::query .= "groupset = ((groupset & ~($groupDel)) | ($groupAdd))";
+        # mysql < 3.23.5 doesn't support the ~ operator, even though
+        # the docs say that it does
+        $::query .= "groupset = ((groupset & ($::superusergroupset - ($groupDel))) | ($groupAdd))";
     }
 }