Add missing <math.h> include for the UC3 devices, hide CDC class driver stream functions for unsupported platforms.

LUFA/Common/Common.h

@@ -109,9 +109,10 @@
 			#include "Endianness.h"
 		#elif (ARCH == ARCH_UC3)
 			#include <avr32/io.h>
+			#include <math.h>
 
 			// === TODO: Find abstracted way to handle these ===
-			#define PROGMEM                  const
+			#define PROGMEM                  
 			#define pgm_read_byte(x)         *x
 			#define memcmp_P(...)            memcmp(__VA_ARGS__)
 			#define memcpy_P(...)            memcpy(__VA_ARGS__)

LUFA/Drivers/USB/Class/Device/CDCClassDevice.h

@@ -283,6 +283,7 @@
 			 */
 			void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 
+			#if defined(FDEV_SETUP_STREAM) || defined(__DOXYGEN__)
 			/** Creates a standard character stream for the given CDC Device instance so that it can be used with all the regular
 			 *  functions in the standard <stdio.h> library that accept a \c FILE stream as a destination (e.g. \c fprintf()). The created
 			 *  stream is bidirectional and can be used for both input and output functions.
@@ -314,7 +315,8 @@
 			 */
 			void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
 			                                     FILE* const Stream) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
-
+			#endif
+			
 	/* Private Interface - For use in library only: */
 	#if !defined(__DOXYGEN__)
 		/* Function Prototypes: */

LUFA/Drivers/USB/Class/Host/CDCClassHost.h

@@ -271,6 +271,7 @@
 			 */
 			uint8_t CDC_Host_Flush(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 
+			#if defined(FDEV_SETUP_STREAM) || defined(__DOXYGEN__)
 			/** Creates a standard character stream for the given CDC Device instance so that it can be used with all the regular
 			 *  functions in the standard \c <stdio.h> library that accept a \c FILE stream as a destination (e.g. \c fprintf). The created
 			 *  stream is bidirectional and can be used for both input and output functions.
@@ -302,7 +303,8 @@
 			 */
 			void CDC_Host_CreateBlockingStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
 			                                   FILE* const Stream);
-
+			#endif
+			
 			/** CDC class driver event for a control line state change on a CDC host interface. This event fires each time the device notifies
 			 *  the host of a control line state change (containing the virtual serial control line states, such as DCD) and may be hooked in the
 			 *  user program by declaring a handler function with the same name and parameters listed here. The new control line states