FORTIFY_SOURCE

build.sh

#!/bin/sh

# build and see output
go build -x c.go

# if you link to outside libraries
#go build -ldflags '-extldflags "-DFORTIFY_SOURCE"' -x c.go

c.go

package main

/*
#cgo CFLAGS: -DFORTIFY_SOURCE
#include <stdio.h>

void foo(const char* msg) {
  printf(msg);
}
*/
import "C"

func main() {
        C.foo(C.CString("whoop whoop\n"))
}