gcc throws compiler errors on every line of ARMv8 assembly function

I am trying to compile the following function:

#include <stdio.h>extern long long int f(int a, int b);int main() {    long long int x = f(3, 2);    printf("Value of x = %lld\n", x);    return 0;}

function f:

// Keep local variable b in X19;// // Assume n and k are passed in X0 and X1 respectively and that the result is returned in X0..section .text.global ff:    SUB SP, SP, #24         //Clearing space in the SP    STUR X30, [SP, #16]     //Storing the LR in the SP    STUR X19, [SP, #8]      //Storing b in the SP    ADD X19, X1, #2         //b = k + 2    CMP X0, #0              //Comparing if (n == 0)    B.NE else               //Goes to else if false    MOV X19, #8             //k = 8    ADD SP, SP, #8          //Adding 8 as we don't use the SP to store X9 in this case    B end                   //Goes to endelse:    MOV X9, X0              //Storing n in X9    STUR X9, [SP, #0]       //Storing X9 in the SP    SUB X0, X0, #1          //n = n - 1    ADD X1, X1, #1          //k = k + 1    BL f                    //Calling recursive function    LDUR X9, [SP, #0]       //Loading X9 from the SP    ADD SP, SP, #8          //Removing space for X9 from the SP    LSL X9, X9, #2          //n = n * 4    ADD X19, X19, X9        //b = b + 4*n    ADD X19, X19, X0        //b = b + 4*n + f()end:    ADD X0, X19, X1         //Stores b + n into X0    LDUR X19, [SP, #0]      //Loading X19 from the SP    LDUR X30, [SP, #8]      //Loading X30 from the SP    ADD SP, SP, #16         //Removing space for X19 and X30 from the SP    BR LR                   //Branches to the LR

But whenever I use my makefile, I get errors for every single line of the assembly instruction for f().

TARGET = question_4CC = gccLD = gccFLAGS = -g -O0all: $(TARGET)clean:    rm *.o    rm $(TARGET)main.o: main.c    $(CC) $(FLAGS) -c $^ -o $@question_4.o: question_4.S    $(CC) $(FLAGS) -c $^ -o $@$(TARGET): main.o question_4.o    $(LD) main.o question_4.o -o $@

I get the following error messages.Error message from terminal

I've used similar makefiles for other files on a raspberry pie. But this compile attempt was done on my local machine, a windows through wsl. Could this be the issue?