If I understand this correctly, Lua by default will call the debug library "debug.traceback" when an error occurs.

However, when embedding Lua into C code like done in the example here: Simple Lua API Example

We only have available the error message on the top of the stack.

i.e.

if (status) {
    /* If something went wrong, error message is at the top of */
    /* the stack */
    fprintf(stderr, "Couldn't load file: %s\n", lua_tostring(L, -1));

    /* I want to print a stacktrace here. How do I do that? */
    exit(1);
}

How do I print the stack trace from C after the initial error?