Hide warnings when we try to recalculate resources with illegal inputs

bin/FIJI/Settings.pm

@@ -867,6 +867,10 @@ sub _log2 {
 # @returns ($registers, $lutsum)
 
 sub _est_resources {
+    # We recalculate resources even if parameters are bogus. Disabling
+    # warnings at least hides this stupidity from the user.
+    no warnings 'numeric';
+
     my $logger = get_logger("");
     my ($FREQUENCY, $BAUD, $TIMER_WIDTH, $RST_CYCLES, $LFSR_WIDTH, $FIU_NUM) = @_;