[Expectperl-discuss] Expect not working on HP/UX

[mgraham <mg...@to...>]

I'm finding that Expect hangs on a trivial example on HP/UX:

    #!/opt/local/bin/perl

    use strict;
    use Expect;

    my $exp = Expect->spawn('ls', '-la');

The program just hangs and never completes.  This runs fine under
Linux.

Using the expect program (v5) on the same HP/UX system, I can run the
following without problems:

    bash-2.04$ expect
    expect1.1> spawn ls -la
    spawn ls -la
    20348
    expect1.2> interact
    total 16
    drwxr-xr-x   2 mgraham    ops             96 Sep 29 14:17 .
    drwxr-xr-x   6 mgraham    ops           4096 Sep 29 14:17 ..
    -rwxr-xr-x   1 mgraham    ops             93 Sep 29 14:17 exp.pl


After turning on Expect.pm debugging in the perl script
($Expect::Debug = 2), I get the following output:

    Spawned 'ls -la'
            spawn id(3)
            Pid: 20378
            Tty: /dev/pts/11
    Closing spawn id(3).

From my experience on Linux, I think I should also see details of the
process from the child's point of view.

I would like to debug this issue further, but I don't really know
where to start.  Any help would be greatly appreciated...

System info:
    Expect.pm 1.08
    perl 5.005_03
    PA-RISC2.0
    HP/UX B.11.00


Michael