You can try the following:

1. Perlapp

2. Perl2exe

3. Par

.o (to execute on Unix)

All I can find is this on perldoc:

To create a shared library, the following steps must be performed:

  1. Compile source modules with +z or +Z flag to create a .o module
     which contains Position-Independent Code (PIC).  The linker will
     tell you in the next step if +Z was needed.
     (For gcc, the appropriate flag is -fpic or -fPIC.)

  2. Link the shared library using the -b flag.  If the code calls
     any functions in other system libraries (e.g., libm), it must
     be included on this line.
[download]

in Building Dynamic Extensions on HP-UX on the Platform specific page.

There might be more info in those sections.

HTH.

Walking the road to enlightenment... I found a penguin and a camel on the way.....
Fancy a yourname@perl.me.uk? Just ask!!!

All I can find is this on perldoc:

To create a shared library, the following steps must be performed:

All I can find is this in your original message:

Hi, I have a .pl file Now I have to convert it .exe (to execute on windows ) and .o (to execute on Unix).

And I see no mention of "shared library" here. Also, while this may have something to do with what you asked, I doesn't see why it should necessarily have to.

in particular your implicit claim i.e. that "a .pl file must be converted to .o to be excuted under Unix" is plainly false, not to mention the fact that .pl and .o are "nothing but extensions" and *NIX is much less extension-centric than Windows* are, so that the actual content of such claim is -strictly speaking- empty.