BEGIN {
unshift(@INC,".../sharedlib2.0")
}

use sharedlib;
use perlmodule;

#call subroutine in perlmodule dependent on sharedlib1.0"

##</code><code>##

BEGIN {
unshift(@INC, ".../sharedlib1.0")
}
use sharedlib;
sub perlsub {
#call some function in sharedlib
}