What is your code? It works on 5.8.x 
eval {
    local $SIG{ALRM} = sub { die "alarm\n" }; # NB: \n required
    alarm 2;
#    $nread = sysread SOCKET, $buffer, $size;
    sleep 4;
    alarm 0;
};
if ($@) {
    die unless $@ eq "alarm\n";   # propagate unexpected errors
    # timed out
    warn "alarm timed out";
}
else {
    warn "success ";
}
__END__
alarm timed out at - line 11.

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In reply to Re: SIGALRM and Win32 by Anonymous Monk
in thread SIGALRM and Win32 by Anonymous Monk

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