Fix Arduino.h inclusion in C files

Author: facchinm

cores/arduino/macros.h

@@ -25,7 +25,6 @@
 
 #include <Arduino.h>
 #include <PinNames.h>
-#include <platform/FileHandle.h>
 
 // this is needed for backwards compatibility
 #define digitalPinToInterrupt(P)    (P)
@@ -38,6 +37,9 @@
 
 #endif
 
+#ifdef __cplusplus
+#include <platform/FileHandle.h>
+
 #define REDIRECT_STDOUT_TO(stream)    namespace mbed { \
                                         FileHandle *mbed_override_console(int fd) { \
                                         return static_cast<mbed::FileHandle*>(stream); \
@@ -46,3 +48,5 @@
                                         return static_cast<mbed::FileHandle*>(stream); \
                                        } \
                                       }
+
+#endif //__cplusplus

variants/ARDUINO_NANO33BLE/pinmode_arduino.h

@@ -44,6 +44,9 @@ typedef enum {
     INPUT_PULLDOWN = TempINPUT_PULLDOWN
 } PinMode;
 
+#if defined(__cplusplus)
+
 /* Redeclare Common.h functions with the updated PinMode */
 void pinMode(pin_size_t pinNumber, PinMode pinMode);
 
+#endif

variants/EDGE_CONTROL/pinmode_arduino.h

@@ -44,6 +44,9 @@ typedef enum {
     INPUT_PULLDOWN = TempINPUT_PULLDOWN
 } PinMode;
 
+#if defined(__cplusplus)
+
 /* Redeclare Common.h functions with the updated PinMode */
 void pinMode(pin_size_t pinNumber, PinMode pinMode);
 
+#endif

variants/NANO_RP2040_CONNECT/pinmode_arduino.h

@@ -66,6 +66,9 @@ typedef enum {
     INPUT_PULLDOWN = TempINPUT_PULLDOWN
 } PinMode;
 
+#if defined(__cplusplus)
+
 /* Redeclare Common.h functions with the updated PinMode */
 void pinMode(pin_size_t pinNumber, PinMode pinMode);
 
+#endif

variants/PORTENTA_H7_M4/pinmode_arduino.h

@@ -66,6 +66,9 @@ typedef enum {
     INPUT_PULLDOWN = TempINPUT_PULLDOWN
 } PinMode;
 
+#if defined(__cplusplus)
+
 /* Redeclare Common.h functions with the updated PinMode */
 void pinMode(pin_size_t pinNumber, PinMode pinMode);
 
+#endif

variants/PORTENTA_H7_M7/pinmode_arduino.h

@@ -66,6 +66,9 @@ typedef enum {
     INPUT_PULLDOWN = TempINPUT_PULLDOWN
 } PinMode;
 
+#if defined(__cplusplus)
+
 /* Redeclare Common.h functions with the updated PinMode */
 void pinMode(pin_size_t pinNumber, PinMode pinMode);
 
+#endif

variants/RASPBERRY_PI_PICO/pinmode_arduino.h

@@ -66,6 +66,9 @@ typedef enum {
     INPUT_PULLDOWN = TempINPUT_PULLDOWN
 } PinMode;
 
+#if defined(__cplusplus)
+
 /* Redeclare Common.h functions with the updated PinMode */
 void pinMode(pin_size_t pinNumber, PinMode pinMode);
 
+#endif