ISO C forbids assignment between function pointer and 'void *' [-pedantic]

void *(*funcPtr)();
funcPtr = GetPointer();

void *GetPointer();

#include <dlfcn.h>

int
main(int argc, char *argv[])
{
    ...
    void (*funcp)(void);        /* Pointer to function with no arguments */
    ...
    *(void **) (&funcp) = dlsym(libHandle, argv[2]);
}

warning: ISO C forbids passing argument 2 of ‘g_slist_append’ between function pointer and ‘void *’ [-pedantic]

typedef int (* func) (int);

int mult2(int x)
{
    return x + x;
}

int main(int argc, char *argv[])
{
    GSList *functions = NULL;
    func f;

    functions = g_slist_append(functions, mult2);
    f = (func *) functions->data;
    printf("%dn", f(10));
    return 0;
}

struct funcstruct {
    int (* func) (int);
};

int mult2(int x)
{
    return x + x;
}

int main(int argc, char *argv[])
{
    GSList *functions = NULL;
    struct funcstruct p;
    p.func = mult2;

    functions = g_slist_append(functions, &p);
    p = * (struct funcstruct *) functions->data;
    printf("%dn", p.func(10));
    return 0;
}

#include <dlfcn.h>

/* Pointer to function with no arguments */
typedef void (functor_t*)(void);

void load_symbol( functor_t* functor, void* dl_handle, const char* symbol_name ) {
    *(void**)functor = dlsym( dl_handle, symbol_name );
}

int
main(int argc, char *argv[])
{
    // [...]
    functor_t funcp;
    // [...]
    load_symbol( &funcp, libHandle, argv[2]);
}