How do I load a shared library?

[Nafees via Digitalmars-d-learn]

I've seen the page on how to load/make Shared Libraries, but it 
doesn't work as mentioned here 
https://dlang.org/dll-linux.html#dso10
I have 2 files:
lib.d contains:<code>
import core.stdc.stdio;

extern (C) int dll()
{
     printf("dll()\n");
     return 0;
}

shared static this()
{
     printf("libdll.so shared static this\n");
}

shared static ~this()
{
     printf("libdll.so shared static ~this\n");
}
</code>

and loader.d contains:<code>
import core.stdc.stdio;
import core.stdc.stdlib;
import core.sys.posix.dlfcn;

extern (C) int dll();

int main()
{
     printf("+main()\n");

     void* lh = dlopen("/home/nafees/Desktop/temp/libdll.so", 
RTLD_LAZY); //The path is absolutely correct
     if (!lh)
     {
         fprintf(stderr, "dlopen error: %s\n", dlerror());
         exit(1);
     }
     printf("libdll.so is loaded\n");

     int function() fn = cast(int function())dlsym(lh, "dll");
     char* error = dlerror();
     if (error)
     {
         fprintf(stderr, "dlsym error: %s\n", error);
         exit(1);
     }
     printf("dll() function is found\n");

     fn();

     printf("unloading libdll.so\n");
     dlclose(lh);

     printf("-main()\n");
     return 0;
}

shared static this() { printf("main shared static this\n"); }

shared static ~this() { printf("main shared static ~this\n"); }
</code>

I compile lib.d using the -shared & -m32 switches, and loader.d 
with -m32 switch (I want the result to be n 32 bit). It compiles 
fine, but when I run loader, it crashes as soon as dlopen is 
called, giving a segFault.

I am using latest DMD, on xubuntu 16.04.