Merge pull request #1754 from lovedheart/patch-29

Update gobject_introspection.rb

packages/gobject_introspection.rb

@@ -9,6 +9,8 @@ class Gobject_introspection < Package
 
   depends_on 'glib'
   depends_on 'flex'
+  depends_on 'bison'
+  depends_on 'cairo'
 
   def self.build
     system "./configure --prefix=#{CREW_PREFIX} --libdir=#{CREW_LIB_PREFIX}"