build.sh

#!/bin/bash
gcc \
 -I/usr/local/include -g -Os -static -nostdlib -nostdinc -fno-pie -no-pie -mno-red-zone -fno-omit-frame-pointer -pg -mnop-mcount\
 conftest.c -o conftest.dbg\
 -fuse-ld=bfd -Wl,-T,/cosmopolitan/ape.lds -include /cosmopolitan/cosmopolitan.h /cosmopolitan/crt.o /cosmopolitan/ape.o /cosmopolitan/cosmopolitan.a

conftest.c

#include <stdio.h>
int main () {
FILE *f = fopen ("conftest.out", "w");
 return ferror (f) || fclose (f) != 0;
 return 0;
}