1 files changed, 12 insertions, 0 deletions
diff --git a/lib/irb/init.rb b/lib/irb/init.rb
index f51fd1c0b1..d428850e3f 100644
--- a/lib/irb/init.rb
+++ b/lib/irb/init.rb
@@ -135,6 +135,18 @@ module IRB
 	@CONF[:MATH_MODE] = true
       when "-d"
 	$DEBUG = true
+      when "-w"
+	$VERBOSE = true
+      when /^-W(.+)?/
+	opt = $1 || ARGV.shift
+	case opt
+	when "0"
+	  $VERBOSE = nil
+	when "1"
+	  $VERBOSE = false
+	else
+	  $VERBOSE = true
+	end
       when /^-r(.+)?/
 	opt = $1 || ARGV.shift
 	@CONF[:LOAD_MODULES].push opt if opt