PWM frequency library

Development Libraries
153

Having issues using this library, probably some annoying oversight but if anyone could help me get it to run it'd be great. Seems like the compiler is not getting the functions properly somehow..

void setup() {
#include <C:\Users\Jonas\Documents\Arduino\Fancontrol\PWM\PWM.h>

InitTimersSafe();
SetPinFrequency(1, 25000);

}

void loop() {

}

Error message:

C:\Users\Jonas\AppData\Local\Temp\ccWpBMvO.ltrans0.ltrans.o: In function `setup':

C:\Users\Jonas\Documents\Arduino\Fancontrol\main/main.ino:4: undefined reference to `InitTimersSafe()'

C:\Users\Jonas\Documents\Arduino\Fancontrol\main/main.ino:5: undefined reference to `SetPinFrequency(signed char, unsigned long)'

collect2.exe: error: ld returned 1 exit status

exit status 1
Error compiling for board Arduino/Genuino Uno.