env GOGARBLE=test/main

garble build
exec ./main
cmp stdout main.stdout
binsubstr main$exe 'privateAdd'

[short] stop # no need to verify this with -short

env GOGARBLE=*
garble build
exec ./main
cmp stdout main.stdout
binsubstr main$exe 'privateAdd'
env GOGARBLE=test/main

garble -tiny build
exec ./main
cmp stdout main.stdout
binsubstr main$exe 'privateAdd'

go build
exec ./main
cmp stdout main.stdout

-- go.mod --
module test/main

go 1.17
-- main.go --
package main

import "os/user"

/*
static int privateAdd(int a, int b) {
	return a + b;
}

extern void goCallback();

static void callGoCallback() {
	goCallback();
}

struct portedStruct {
	char*  PortedField;
};
*/
import "C"
import "fmt"

func main() {
	fmt.Println(C.privateAdd(C.int(1), C.int(2)))
	_, _ = user.Current()

	fmt.Printf("%#v\n", C.struct_portedStruct{})

	C.callGoCallback()
}

//export goCallback
func goCallback() {
	fmt.Println("go callback")
}
-- main.stdout --
3
main._Ctype_struct_portedStruct{PortedField:(*main._Ctype_char)(nil)}
go callback