References

source/Core/Threads/OperatingModes/utils/checkUndervoltage.cpp

@@ -1,5 +1,8 @@
-
+#include "Buttons.hpp"
+#include "OperatingModeUtilities.h"
+#include "configuration.h"
 #ifdef POW_DC
+extern volatile uint32_t currentTempTargetDegC;
 // returns true if undervoltage has occured
 bool checkForUnderVoltage(void) {
   if (!getIsPoweredByDCIN()) {

source/Core/Threads/OperatingModes/utils/drawPowerSourceIcon.cpp

@@ -1,6 +1,6 @@
 #include "OperatingModeUtilities.h"
 
-static void gui_drawBatteryIcon() {
+void gui_drawBatteryIcon(void) {
 #if defined(POW_PD) || defined(POW_QC)
   if (!getIsPoweredByDCIN()) {
     // On non-DC inputs we replace this symbol with the voltage we are operating on