DLL Class Delete Issue

lib.cpp

#include "lib.hpp"
#include <iostream>

Lib::Lib() {
    std::cout << "Lib\n";
}

void Lib::print() {
    std::cout << "Print\n";
}

Lib::~Lib() {
    std::cout << "~Lib\n";
}

void *create() {
    return new Lib();
}

void destroy(LibBase *l) {
    delete l;
}

lib.hpp

#pragma once

#include "lib_int.hpp"

class Lib : public LibBase {
public:
    Lib();
    virtual void print();
    ~Lib();
};

lib_int.hpp

#pragma once

class LibBase {
public:
    virtual void print() = 0;
    virtual ~LibBase() = 0;
};

extern "C" {
    void *create();
    void destroy(LibBase *l);
}

main.cpp

#include "lib_int.hpp"
#include <iostream>

#include <dlfcn.h>

#define LoadDLL(path) void *lib_handle = dlopen(("./lib"+std::string(path)+".so").c_str(), RTLD_LAZY); \
if (!lib_handle) {\
    std::cout << "Failed to load " << path << ": " << dlerror() << "!\n"; \
    return 1;\
}

#define LoadDLLFunction(string) dlsym(lib_handle, string);

int main() {
    LoadDLL("test");

    LibBase *(*pfnCreate)() = (LibBase* (*)())LoadDLLFunction("create");
    if (!pfnCreate) {
        std::cout << "Failed to get create() from library.\n";
        return 1;
    }

    void (*pfnDestroy)(LibBase *) = (void (*)(LibBase *))LoadDLLFunction("destroy");
    if (!pfnDestroy) {
        std::cout << "Failed to get destroy() from library.\n";
        return 1;
    }

    LibBase *l = pfnCreate();
    l->print();
    pfnDestroy(l);
    std::cout << "Leaving Main\n";
    
    return 0;
}