scons: Enable -Wextra by default

Make best use of the compiler, and enable -Wextra as well as
-Wall. There are a few issues that had to be resolved, but they are
all trivial.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mem/ruby/slicc_interface/AbstractController.hh b/src/mem/ruby/slicc_interface/AbstractController.hh
index 34160c149..383507eed 100644
--- a/src/mem/ruby/slicc_interface/AbstractController.hh
+++ b/src/mem/ruby/slicc_interface/AbstractController.hh
@@ -65,8 +65,8 @@ class AbstractController : public MemObject, public Consumer
     void init();
     const Params *params() const { return (const Params *)_params; }
 
-    const NodeID getVersion() const { return m_machineID.getNum(); }
-    const MachineType getType() const { return m_machineID.getType(); }
+    NodeID getVersion() const { return m_machineID.getNum(); }
+    MachineType getType() const { return m_machineID.getType(); }
 
     void initNetworkPtr(Network* net_ptr) { m_net_ptr = net_ptr; }