The perl initialization and shut down are basically straight out of the perlembed man page. 

{
const char *args[] = { "", "-ew", "0" };
const char** aargs PERL_UNUSED_DECL = args;
static int arg_count = sizeof args / sizeof *args;

PERL_SYS_INIT(&arg_count, const_cast<char***>(&aargs));

my_perl = perl_alloc();
perl_construct(my_perl);

perl_parse(my_perl, xs_init, arg_count, const_cast<char**>(args), NULL
+);

PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
}

{
perl_destruct(my_perl);
perl_free(my_perl);
PERL_SYS_TERM();
}

[download]

The XS for the relevant module is in another comment in this thread. The code to load the module is vanilla: 

newXS("boot_Clock", functionPointerToEXTERN_C_boot_Clock, __FILE__);
eval_pv("boot_Clock", true);

[download]

In reply to Re^2: reinitializing embedded perl interpreter: undefined subrouting called during global destruction by kingkongrevenge
in thread reinitializing embedded perl interpreter: undefined subrouting called during global destruction by kingkongrevenge

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