updated gtk and gobject dependences (#2126)

var/spack/repos/builtin/packages/gobject-introspection/package.py

@@ -39,6 +39,8 @@ class GobjectIntrospection(Package):
     depends_on("glib@2.48.1")
     depends_on("python")
     depends_on("cairo")
+    depends_on("bison", type="build")
+    depends_on("flex", type="build")
 
     def install(self, spec, prefix):
         configure("--prefix=%s" % prefix)

var/spack/repos/builtin/packages/gtkplus/package.py

@@ -37,6 +37,7 @@ class Gtkplus(Package):
     depends_on("atk")
     depends_on("gdk-pixbuf")
     depends_on("pango")
+    depends_on("glib")
 
     def patch(self):
         # remove disable deprecated flag.