Add extern 'C' to FreeRTOS.h.

Remove obsolete extern declaration of vTaskSwitchContext() from the MPX430X IAR portmacro.h (other older portmacro.h header files contain the same declaration).

FreeRTOS/Source/include/FreeRTOS.h

@@ -66,18 +66,21 @@
 #ifndef INC_FREERTOS_H
 #define INC_FREERTOS_H
 
-
 /*
  * Include the generic headers required for the FreeRTOS port being used.
  */
 #include <stddef.h>
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Check stdint.h was included. */
 #ifndef UINT32_MAX
 	/* Check if the FreeRTOS stdint subset has been included. */
 	#ifndef FREERTOS_STDINT
-		#error Read the instructions in FreeRTOS/source/stdint.readme if stdint.h is not provided with your compiler.
+		#error Read the instructions in FreeRTOS/source/stdint.readme if stdint.h is not provided with your compiler or you are building with standard libraries excluded (for example, with -nostdint in GCC).
 	#endif /* FREERTOS_STDINT */
 #endif /* UINT32_MAX */
 
@@ -723,5 +726,9 @@ V8 if desired. */
 	#define xList List_t
 #endif /* configENABLE_BACKWARD_COMPATIBILITY */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* INC_FREERTOS_H */
 

FreeRTOS/Source/portable/IAR/MSP430X/portmacro.h

@@ -167,7 +167,6 @@ extern void vPortYield( void );
 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
 
-extern void vTaskSwitchContext( void );
 #define portYIELD_FROM_ISR( x ) if( x ) vPortYield()
 
 void vApplicationSetupTimerInterrupt( void );

FreeRTOS/Source/portable/IAR/RL78/portmacro.h

@@ -129,7 +129,7 @@ typedef unsigned short UBaseType_t;
 
 #define portENTER_CRITICAL()													\
 {																				\
-extern volatile uint16_t usCriticalNesting;								\
+extern volatile uint16_t usCriticalNesting;										\
 																				\
 	portDISABLE_INTERRUPTS();													\
 																				\
@@ -141,7 +141,7 @@ extern volatile uint16_t usCriticalNesting;								\
 
 #define portEXIT_CRITICAL()														\
 {																				\
-extern volatile uint16_t usCriticalNesting;								\
+extern volatile uint16_t usCriticalNesting;										\
 																				\
 	if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )					\
 	{																			\

FreeRTOS/Source/portable/MSVC-MingW/portmacro.h

@@ -137,12 +137,14 @@ void vPortExitCritical( void );
 	#else
 		/* BitScanReverse returns the bit position of the most significant '1'
 		in the word. */
-		#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) _BitScanReverse( ( DWORD * ) &( uxTopPriority ), ( uxReadyPriorities ) )
+		#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) _BitScanReverse( ( DWORD * ) &( uxTopPriority ), ( uxReadyPriorities ) )		
 	#endif /* __GNUC__ */
 
 #endif /* taskRECORD_READY_PRIORITY */
 
-
+#ifndef __GNUC__
+	__pragma( warning( disable:4211 ) ) /* Nonstandard extension used, as extern is only nonstandard to MSVC. */
+#endif
 
 
 /* Task function macros as described on the FreeRTOS.org WEB site. */