Clang/libc++ requires <cmath> header for fabs and other math functions

Sources/Plasma/FeatureLib/pfCamera/plCameraModifier.cpp

@@ -65,6 +65,8 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include "plAvatar/plArmatureMod.h"
 #include "plAvatar/plPhysicalControllerCore.h"
 
+#include <cmath>
+
 // new stuff
 
 plCameraModifier1::plCameraModifier1() :

Sources/Plasma/PubUtilLib/plAgeDescription/plAgeDescription.cpp

@@ -46,8 +46,10 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include "plFile/plInitFileReader.h"
 #include "plFile/plEncryptedStream.h"
 #include "hsStringTokenizer.h"
+
 #include <functional>
 #include <algorithm>
+#include <cmath>
 
 
 const uint32_t    plAgePage::kInvalidSeqSuffix = (uint32_t)-1;

Sources/Plasma/PubUtilLib/plAvatar/plAvatarMgr.cpp

@@ -41,8 +41,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 *==LICENSE==*/
 #pragma warning(disable: 4503 4786)
 
-#include <algorithm>
-
 #include "plAvatarMgr.h"
 
 // local
@@ -87,6 +85,9 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include "pnMessage/plTimeMsg.h"
 #include "plStatusLog/plStatusLog.h"
 
+#include <algorithm>
+#include <cmath>
+
 // The static single instance, allocated on demand by GetInstance()
 plAvatarMgr     *plAvatarMgr::fInstance = nil;
 

Sources/Plasma/PubUtilLib/plNetClient/plNetClientMgr.cpp

@@ -111,7 +111,7 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 
 #include <algorithm>
 #include <sstream>
-
+#include <cmath>
 
 
 ////////////////////////////////////////////////////////////////////

Sources/Plasma/PubUtilLib/plSDL/plStateVariable.cpp

@@ -39,8 +39,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
       Mead, WA   99021
 
 *==LICENSE==*/
-#include <cfloat>
-#include <type_traits>
 #include "hsStream.h"
 #include "hsTimer.h"
 #include "plSDL.h"
@@ -61,6 +59,9 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include "plResMgr/plResManager.h"
 #include "plUnifiedTime/plClientUnifiedTime.h"
 
+#include <type_traits>
+#include <cfloat>
+#include <cmath>
 
 /*****************************************************************************
 *