IDF linker errors

Author: pschatzmann

src/AudioTools/AudioLibs/Desktop/NoArduino.h

@@ -197,16 +197,16 @@ inline long map(long x, long in_min, long in_max, long out_min, long out_max) {
 #include "freertos/FreeRTOSConfig.h"
 
 /// e.g. for AudioActions
-extern "C" int digitalRead(int pin) {
+inline int digitalRead(int pin) {
   printf("digitalRead:%d\n", pin);
   return gpio_get_level((gpio_num_t)pin);
 }
 
-extern "C" void digitalWrite(int pin, int value) {
+inline void digitalWrite(int pin, int value) {
    gpio_set_level((gpio_num_t)pin, value);
 }
 
-extern "C" void pinMode(int pin, int mode) {
+inline void pinMode(int pin, int mode) {
   gpio_num_t gpio_pin = (gpio_num_t)pin;
   printf("pinMode(%d,%d)\n", pin, mode);
 
@@ -228,14 +228,12 @@ extern "C" void pinMode(int pin, int mode) {
   }
 }
 
-// delay and millis is needed by this framework
-#define DESKTOP_MILLIS_DEFINED
-
-extern "C" void delay(uint32_t ms){ vTaskDelay(ms / portTICK_PERIOD_MS);}
-extern "C" uint32_t millis() {return (xTaskGetTickCount() * portTICK_PERIOD_MS);}
-extern "C" void delayMicroseconds(uint32_t ms) {esp_rom_delay_us(ms);}
-extern "C" uint64_t micros() { return xTaskGetTickCount() * portTICK_PERIOD_MS * 1000;}
-
+inline void delay(uint32_t ms){ vTaskDelay(ms / portTICK_PERIOD_MS);}
+inline uint32_t millis() {return (xTaskGetTickCount() * portTICK_PERIOD_MS);}
+inline void delayMicroseconds(uint32_t ms) {esp_rom_delay_us(ms);}
+inline uint64_t micros() { return xTaskGetTickCount() * portTICK_PERIOD_MS * 1000;}
 
+// delay and millis has been defined
+#define DESKTOP_MILLIS_DEFINED
 
 #endif