-Perl 5 README file for the Stratus VOS operating system.
-Paul Green (Paul_Green@stratus.com)
-February 3, 2000
-
-
-Introduction
-------------
-This is a port of Perl version 5, revision 005-63, to VOS. Perl
-is a scripting or macro language that is popular on many
-systems. See your local computer bookstore for a number of good
-books on Perl.
-
-Most of the Perl features should work on VOS. However, any
-attempt by perl.pm to call the following unimplemented POSIX
-functions will result in an error message and an immediate and
-fatal call to the VOS debugger. They are "dup", "fork", and
-"waitpid". The lack of these functions pretty much prevents you
-from starting VOS commands and grabbing their output in perl.
-The workaround is to run the commands outside of perl, then have
-perl process the output file.
-
-
-Compiling Perl 5 on VOS
------------------------
-Before you can build Perl 5 on VOS, you need to have or acquire the
-following additional items.
-
-1. The VOS Standard C Compiler and Runtime, or the VOS Standard C
- Cross-Compiler. This is a standard Stratus product.
-
-2. The VOS OS TCP/IP product set. While the necessary header
- files are included with VOS POSIX.1, you still need the
- appropriate object files in order to bind perl.pm. This is
- a standard Stratus product.
-
-3. The VOS POSIX.1 environment. As of this writing, this is
- available on the VOS FTP site. Login anonymously to
- ftp.stratus.com and get the file
- /pub/vos/alpha/posix.save.evf.gz in binary file-transfer
- mode. Or use the Uniform Resource Locator (URL)
- ftp://ftp.stratus.com/pub/vos/alpha/posix.save.evf.gz from
- your web browser. This is not a standard Stratus product.
-
- Instructions for unbundling this file are at
- ftp://ftp.stratus.com/pub/vos/utility/utility.html.
-
-4. You must compile this version of Perl 5 on VOS Release
- 14.1.0 or higher because some of the perl source files
- contain more than 32,767 source lines. Due to VOS
- release-compatibility rules, this port of perl may not
- execute on VOS Release 12 or earlier.
-
-To build perl 5, change to the "vos" subdirectory and type the
-command "compile_perl -processor X", where X is the processor
-type (mc68020, i80860, pa7100, pa8000) that you wish to use.
-Note that code compiled for the pa7100 processor type can
-execute on the PA7100, PA8000, and PA8500 processors, and that
-code compiled for the pa8000 processor type can execute on the
-PA8000 and PA8500 processors.
-
-
-Installing Perl 5 on VOS
-------------------------
-1. Create the directory >system>ported>command_library.
-
-2. Copy the appropriate version of the perl program module to
- this directory. For example, with your current directory
- set to the top-level directory of Perl 5, to install the
- executable program module for the Motorola 68K
- architecture, enter:
-
- !copy_file vos>obj>perl.pm >system>ported>command_library>*
-
- (If you wish to use both Perl version 4 and Perl version 5,
- you must give them different names; for example, perl.pm
- and perl5.pm).
-
-3. Create the directory >system>ported>perl>lib.
-
-4. Copy all of the files and subdirectories from the lib
- subdirectory into this new directory. For example, with
- the current directory set to the top-level directory of the
- perl distribution, enter:
-
- !copy_dir lib >system>ported>perl>lib>5.005
-
-5. While there are currently no architecture-specific
- extensions or modules distributed with perl, the following
- directories can be used to hold such files:
-
- >system>ported>perl>lib>5.005.68k
- >system>ported>perl>lib>5.005.860
- >system>ported>perl>lib>5.005.7100
- >system>ported>perl>lib>5.005.8000
-
-6. Site-specific perl extensions and modules can be installed
- in one of two places. Put architecture-independent files
- into:
-
- >system>ported>perl>lib>site>5.005
-
- Put architecture-dependent files into one of the following
- directories:
-
- >system>ported>perl>lib>site>5.005.68k
- >system>ported>perl>lib>site>5.005.860
- >system>ported>perl>lib>site>5.005.7100
- >system>ported>perl>lib>site>5.005.8000
-
-7. You can examine the @INC variable from within a perl program
- to see the order in which Perl searches these directories.
-
-
-Unimplemented Features
-----------------------
-If Perl 5 attempts to call an unimplemented VOS POSIX.1 function,
-it will print a fatal error message and enter the VOS debugger.
-This error is not recoverable. See vos_dummies.c for a list of
-the unimplemented POSIX.1 functions. To see what functions are
-unimplemented and what the error message looks like, compile and
-execute "test_vos_dummies.c".
-
-
-Restrictions
-------------
-This port of Perl version 5 to VOS prefers Unix-style,
-slash-separated pathnames over VOS-style greater-than-separated
-pathnames. VOS-style pathnames should work in most contexts, but
-if you have trouble, replace all greater-than characters by slash
-characters. Because the slash character is used as a pathname
-delimiter, Perl cannot process VOS pathnames containing a slash
-character in a directory or file name; these must be renamed.
+If you read this file _as_is_, just ignore the funny characters you
+see. It is written in the POD format (see pod/perlpod.pod) which is
+specially designed to be readable as is.
+
+=head1 NAME
+
+perlvos - Perl for Stratus OpenVOS
+
+=head1 SYNOPSIS
+
+This file contains notes for building perl on the Stratus OpenVOS
+operating system. Perl is a scripting or macro language that is
+popular on many systems. See L<perlbook> for a number of good books
+on Perl.
+
+These are instructions for building Perl from source. This version of
+Perl requires the dynamic linking support that is found in OpenVOS
+Release 17.1 and thus is not supported on OpenVOS Release 17.0 or
+earlier releases.
+
+If you are running VOS Release 14.4.1 or later, you can obtain a
+pre-compiled, supported copy of perl by purchasing the GNU Tools
+product from Stratus Technologies.
+
+=head1 BUILDING PERL FOR OPENVOS
+
+To build perl from its source code on the Stratus V Series platform
+you must have OpenVOS Release 17.1.0 or later, GNU Tools Release
+3.5 or later, and the C/POSIX Runtime Libraries.
+
+Follow the normal instructions for building perl; e.g, enter bash, run
+the Configure script, then use "gmake" to build perl.
+
+=head1 INSTALLING PERL IN OPENVOS
+
+=over 4
+
+=item 1
+
+After you have built perl using the Configure script, ensure that you
+have modify and default write permission to C<< >system>ported >> and
+all subdirectories. Then type
+
+ gmake install
+
+=item 2
+
+While there are currently no architecture-specific extensions or
+modules distributed with perl, the following directories can be
+used to hold such files (replace the string VERSION by the
+appropriate version number):
+
+ >system>ported>lib>perl5>VERSION>i786
+
+=item 3
+
+Site-specific perl extensions and modules can be installed in one of
+two places. Put architecture-independent files into:
+
+ >system>ported>lib>perl5>site_perl>VERSION
+
+Put site-specific architecture-dependent files into one of the
+following directories:
+
+ >system>ported>lib>perl5>site_perl>VERSION>i786
+
+=item 4
+
+You can examine the @INC variable from within a perl program
+to see the order in which Perl searches these directories.
+
+=back
+
+=head1 USING PERL IN OPENVOS
+
+=head2 Restrictions of Perl on OpenVOS
+
+This port of Perl version 5 prefers Unix-style, slash-separated
+pathnames over OpenVOS-style greater-than-separated pathnames.
+OpenVOS-style pathnames should work in most contexts, but if you have
+trouble, replace all greater-than characters by slash characters.
+Because the slash character is used as a pathname delimiter, Perl
+cannot process OpenVOS pathnames containing a slash character in a
+directory or file name; these must be renamed.
This port of Perl also uses Unix-epoch date values internally.
As long as you are dealing with ASCII character string
representations of dates, this should not be an issue. The
supported epoch is January 1, 1980 to January 17, 2038.
-See the file pod/perlport.pod for more information about the VOS
+See the file pod/perlport.pod for more information about the OpenVOS
port of Perl.
+=head1 TEST STATUS
+
+A number of the perl self-tests fails for various reasons; generally
+these are minor and due to subtle differences between common
+POSIX-based environments and the OpenVOS POSIX environment. Ensure
+that you conduct sufficient testing of your code to guarantee that it
+works properly in the OpenVOS environment.
+
+=head1 SUPPORT STATUS
-Support Status
---------------
I'm offering this port "as is". You can ask me questions, but I
-can't guarantee I'll be able to answer them; I don't know much
-about Perl itself; I'm still learning that. There are some
+can't guarantee I'll be able to answer them. There are some
excellent books available on the Perl language; consult a book
seller.
-(end)
+If you want a supported version of perl for OpenVOS, purchase the
+OpenVOS GNU Tools product from Stratus Technologies, along with a
+support contract (or from anyone else who will sell you support).
+
+=head1 AUTHOR
+
+Paul Green (Paul.Green@stratus.com)
+
+=head1 LAST UPDATE
+
+February 28, 2013
+
+=cut
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