Removed warnings when compiling on linux.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/trunk/supertuxkart@2592 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/modes/three_strikes_battle.cpp

@@ -301,4 +301,5 @@ bool ThreeStrikesBattle::acceptPowerup(const int type) const
     if(type == POWERUP_PARACHUTE || type == POWERUP_ANVIL || type == POWERUP_ZIPPER) return false;
     
     return true;
-}
+}
+

src/robots/default_robot.cpp

@@ -522,7 +522,7 @@ void DefaultRobot::handleNitro()
     // (i.e. more than 2) nitro, use it.
     // -------------------------------------------------
     const unsigned int num_karts = race_manager->getNumKarts();
-    if(getPosition()== num_karts && getEnergy()>2.0f)
+    if(getPosition()== (int)num_karts && getEnergy()>2.0f)
     {
         m_controls.wheelie = true;
         return;

src/robots/track_info.cpp

@@ -36,10 +36,10 @@ void TrackInfo::setupSteerInfo()
     // direction changes from either straight to curve or the other way round.
     int i = 0;
     int num_drivelines  = m_track->m_driveline.size();
-    float current_angle = m_track->m_angle[i];
+    // not ready yet float current_angle = m_track->m_angle[i];
     while(i<num_drivelines)
     {
-        DirectionType dir = computeDirection(i);
+      // not ready yetDirectionType dir = computeDirection(i);
         i++;
     }
 }   // setupSteerInfo

src/robots/track_info.hpp

@@ -58,4 +58,4 @@ public:
     TrackInfo(const Track *track);
 };   // TrackInfo
 
-#endif
+#endif