( my $file= $class ) =~ s-::|'-/-g;
if(  ! eval { require "$file.pm"; 1 }  ) {
    # work-around the failure here
}

##</code><code>##

if(  ! eval "require $class; 1"  ) {
    # work-around the failure here
}

##</code><code>##

eval "require $class; 1"
    or  die $@;

##</code><code>##

( my $file= $class ) =~ s-::|'-/-g;
require "$file.pm";