C help?

Makefile

wut: wut.c
	$(CC) -g wut.c -o wut -Wall -Wextra -pedantic -std=c99

wut.c

#include <stdio.h>
#define BOARD_HEIGHT 16
#define SCREEN_HEIGHT 32
#define VERTICAL_RATIO SCREEN_HEIGHT / BOARD_HEIGHT

int main() {
  unsigned int y = 26;
  unsigned int board_y = y / VERTICAL_RATIO;
  printf("%d\n",board_y);
}

hobbes@metalbaby:~/src-e2/graphspace$ ./grid 
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