Fix build without precompiled headers in 107d3d461f.

Also remove an un-needed variable.

Patch by: elexis
This was SVN commit r22652.

source/graphics/TextureConverter.cpp

@@ -286,8 +286,6 @@ CTextureConverter::CTextureConverter(PIVFS vfs, bool highQuality) :
 
 	// Set up the worker thread:
 
-	int ret;
-
 	// Use SDL semaphores since OS X doesn't implement sem_init
 	m_WorkerSem = SDL_CreateSemaphore(0);
 	ENSURE(m_WorkerSem);

source/graphics/TextureConverter.h

@@ -23,6 +23,7 @@
 
 #include "TextureManager.h"
 
+#include <mutex>
 #include <thread>
 
 class MD5;

source/lib/timer.cpp

@@ -27,16 +27,18 @@
 #include "precompiled.h"
 #include "lib/timer.h"
 
-#include <sstream>	// std::stringstream
-#include <numeric>
-#include <cmath>
 #include <cfloat>
+#include <cmath>
 #include <cstdarg>
+#include <mutex>
+#include <numeric>
+#include <sstream>	// std::stringstream
 
 #include "lib/module_init.h"
 #include "lib/posix/posix_pthread.h"
 #include "lib/posix/posix_time.h"
-# include "lib/sysdep/cpu.h"
+#include "lib/sysdep/cpu.h"
+
 #if OS_WIN
 # include "lib/sysdep/os/win/whrt/whrt.h"
 #endif

source/tools/atlas/GameInterface/GameLoop.cpp

@@ -17,8 +17,6 @@
 
 #include "precompiled.h"
 
-#include <thread>
-
 #include "GameLoop.h"
 
 #include "MessagePasserImpl.h"
@@ -45,6 +43,8 @@
 
 using namespace AtlasMessage;
 
+#include <thread>
+
 
 namespace AtlasMessage
 {