THRIFT-916 compile with -Wall -Wextra without warning on Debian Lenny


git-svn-id: https://svn.apache.org/repos/asf/thrift/trunk@1036250 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/concurrency/ThreadManager.cpp b/lib/cpp/src/concurrency/ThreadManager.cpp
index a65394b..f7b2690 100644
--- a/lib/cpp/src/concurrency/ThreadManager.cpp
+++ b/lib/cpp/src/concurrency/ThreadManager.cpp
@@ -68,7 +68,7 @@
 
   void join() { stopImpl(true); }
 
-  const ThreadManager::STATE state() const {
+  ThreadManager::STATE state() const {
     return state_;
   }
 
@@ -492,6 +492,7 @@
   }
 
 void ThreadManager::Impl::remove(shared_ptr<Runnable> task) {
+  (void) task;
   Synchronized s(monitor_);
   if (state_ != ThreadManager::STARTED) {
     throw IllegalStateException();