Fix compilation on Linux

src/common/engine/stats.h

@@ -48,6 +48,7 @@ public:
 	cycle_t &operator= (const cycle_t &o) { return *this; }
 	void Reset() {}
 	void Clock() {}
+	void ResetAndClock() {}
 	void Unclock() {}
 	double Time() { return 0; }
 	double TimeMS() { return 0; }
@@ -120,6 +121,12 @@ public:
 		Sec -= ts.tv_sec + ts.tv_nsec * 1e-9;
 	}
 
+	void ResetAndClock()
+	{
+		Reset();
+		Clock();
+	}
+
 	void Unclock()
 	{
 #ifdef __linux__

src/common/objects/dobjgc.cpp

@@ -780,7 +780,7 @@ ADD_STAT(gc)
 
 void FStepStats::Reset()
 {
-	for (int i = 0; i < countof(Count); ++i)
+	for (unsigned i = 0; i < countof(Count); ++i)
 	{
 		Count[i] = 0;
 		BytesCovered[i] = 0;