Mac OS X - Demo of a .dylib unloading itself

compile

clang -shared -undefined dynamic_lookup -o init.dylib lib.c
gcc main.c -o main

lib.c

#include <stdio.h>
#include <dlfcn.h>

char* getAddress(void) {
    Dl_info info;
    if (dladdr(getAddress, &info)) {
        printf("Loaded from path = %s\n", info.dli_fname);
    } else {
    	printf("Failed to get path!\n");
    }

    return info.dli_fname;
}

__attribute__((constructor)) void ctor(void) {
	void* handle = dlopen(getAddress(), RTLD_NOW);
	if (!handle) {
		printf("Library handle could not be found!\n");

		return;
	}

	printf("Closing handle\n");
	int ret = dlclose(handle);
	printf("Instances left: %d\n", ret);
}

main.c

#include <stdio.h>
#include <dlfcn.h>

int main(void) {
	printf("Loading init.dylib\n");
	void* handle = dlopen("init.dylib", RTLD_NOW);

	return 0;
}

Doesn't work for me. Dladdr gets the right dylib path, and dlclose return 0, but it doesn't get unloaded when called from itself