Fw: CONS on OpenVMS

[Don's Email]

Thanks for the input from Rajesh and Anthony.

I did play with the contruct. file in an attempt to setup a simple hello
world for the VMS environment.  My work resulted in a greater understanding
of the flexibility of CONS.  However, I ended with a deep recursion on
subroutine "futil::mkdir" at cons. line 2927.

I was unable to repeat the $ENV error I got initially and my perl
environment does support the assignment to $ENV.  DCL on OpenVMS system uses
symbols and logicals.  The perl $ENV structure is saved as a system logical.

I also do have all the required modules installed with perl (ie MD5).  So my
perl configuration should be compatible with CONS.

I'm attempting to perform the following commands in CONS:

1) I want to compile the hello.c code into hello.obj
$ CC /STAND=VAXC HELLO.C
2) I then link the resultant hello.obj (not .o as on Unix) to produce
hello.exe
$ LINK HELLO.OBJ

My construct file looks like:

*** cut here
$env = new cons(
           CC => 'CC',
           CCOM => '%CC /STAND=VAXC /OBJ=.OBJ',
           LINK => 'LINK',
           LINKCOM => '%LINK'
           );
Program $env 'hello.exe', 'hello.obj';
Objects $env 'hello.c';
*** cut here

I included the "Objects" method, otherwise CONS didn't know how to construct
the .OBJ file.

Thanks for any continued assistance on the OpenVMS platform,

Donald G Plugge

----- Original Message -----
From: "Rajesh Vaidheeswarran" <address@hidden>
To: "Don's Email" <address@hidden>
Cc: <address@hidden>
Sent: Tuesday, May 08, 2001 12:14 PM
Subject: Re: CONS on OpenVMS


>
> I'm not sure anyone has used it outside of Unix/NT as far as I know.
>
> That said.. we can do (and in fact, do support) separate compile and
> link stages..
>
> You can pretty much override any cons default (for CC AR LINK, etc..)
> with stuff that suits your environment.
>
> If you tell us what the usable set of defaults is for VMS, we'd be glad
> to incorporate it. (check cons.pl for @param::defaults - from 2.3.0
onwards
> it would be @param::unix and @param::msvc. We could certainly have a
> @param::vms)
>
> However, I don't understand the issue with the $ENV. If you can set
> the ENV hash from inside  a vanilla perl script, then you should be able
to
> do it through cons scripts too. If you can't do it through regular perl,
> I'd be interested in finding out how perl scripts work on that platform
> in the first place..
>
> One more thing to consider.. we use a few packages like File::Spec and
> MD5 (or Digest::MD5)..  Make sure they are available for your platform..
>
> rv
>
> In a previous message, "Don's Email" writes:
>
> > Ever since reading the Spring 1998 Perl Journal article about CONS by =
> > Bob Sidebotham, I've had it in the back of my mind to test the package =
> > in my OpenVMS environment.  OpenVMS has a make equivalent called MMS, =
> > however in most cases you can't simply download a Unix make file and use
=
> > MMS.  Therefore, I'm not particularly attached to make in the first =
> > place.
> >
> > OpenVMS compiling and linking works differently than its Unix counter =
> > parts.  Several key issues cause me to wonder if CONS will work in my =
> > environment.
> >
> > 1) The compiler and linker are called separately in OpenVMS.
> >     Unix: =20
> > gcc -c hello.c -o hello.o
> >     OpenVMS:
> > cc hello.c
> > link hello.obj
> >
> > 2) The object and executable files have different extensions
> > hello.obj and hello.exe
> >
> > 3) Library commands are different
> > Unix:
> > ar r libworld.a world.o
> > OpenVMS:
> > library/replace/object libworld.olb world.obj
> >
> > 4) Perl is called using the "Perl" command
> > Unix:
> > cons.pl hello
> > OpenVMS:
> > perl cons.pl hello
> >
> > In addition, I've receive an error assigning to the $ENV variable on =
> > this platform and the file naming conventions differ.  The $ in  DCL =
> > files can cause problems.
> >
> > Basically, I'm wonder if anyone has successfully used the CONS package =
> > on OpenVMS.  Or if anyone has an opinion on how surmountable these =
> > issues will be in the OpenVMS environment.
> >
> > Sincerely,
> > Donald G Plugge
>
> _______________________________________________
> address@hidden
> http://mail.gnu.org/mailman/listinfo/cons-discuss
> Cons URL: http://www.dsmit.com/cons/
>
>