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PERLVOS(1)                                 Perl Programmers Reference Guide                                PERLVOS(1)



NAME
       perlvos - Perl for Stratus VOS

SYNOPSIS
       This file contains notes for building perl on the Stratus VOS operating system.  Perl is a scripting or macro
       language that is popular on many systems.  See perlbook for a number of good books on Perl.

       These are instructions for building Perl from source.  This version of Perl is not supported on VOS Release
       14.2 or earlier releases.  If you have a Continuum platform running VOS Release 14.3 through 14.7, download
       Perl from the Stratus Anonymous FTP site at ftp://ftp.stratus.com/pub/vos/posix/ga/continuum/continuum.html.
       If you have a V Series platform running VOS Release 15.0 or later, or if you have a V Series platform running
       OpenVOS Release 17.0 or later, download Perl from
       ftp://ftp.stratus.com/pub/vos/posix/ga/v-series/v-series.html.  The perl distribution files on the Stratus
       anonymous FTP site are stored in a format called a "bundled file".  Instructions for unbundling the Perl
       distribution file are at ftp://ftp.stratus.com/pub/vos/utility/utility.html.

       If you are running VOS Release 14.4.1 or later, you can obtain a pre-compiled, supported copy of perl by
       purchasing Release 2.0.1 (or later) of the VOS GNU C/C++ and GNU Tools product from Stratus Technologies.

BUILDING PERL FOR VOS
       To build perl from its source code on the Stratus Continuum platform, you must be have VOS Release 14.5.0 or
       later, the STCP product, and the GNU C/C++ and GNU Tools, Release 2.0.1 or later.  On the V Series platform
       you must have VOS Release 15.0.0 or later, and any version of the GNU C/C++ and GNU Tools product.

       To build full perl using the supplied Configure script and makefiles, change to the "vos" subdirectory and
       type the command "compile_full_perl" or "start_process compile_full_perl".  This will configure, build, and
       test perl.

INSTALLING PERL IN VOS
       1.  If you have built perl using the Configure script, ensure that you have modify and default write
           permission to ">system>ported" and all subdirectories.  Then type

                gmake install

       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>7100
                >system>ported>lib>perl5>VERSION>8000
                >system>ported>lib>perl5>VERSION>i786

       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>7100
                >system>ported>lib>perl5>site_perl>VERSION>8000
                >system>ported>lib>perl5>site_perl>VERSION>i786

       4.  You can examine the @INC variable from within a perl program to see the order in which Perl searches these
           directories.


       See the file pod/perlport.pod for more information about the VOS port of Perl.

   Handling of underflow and overflow
       Prior to VOS Release 14.7.0, VOS does not support automatically mapping overflowed floating-point values to
       +infinity, nor automatically mapping underflowed floating-point values to zero, unlike many other platforms.
       The Perl pack function has been modified to perform such mapping in software on VOS.  Performing other
       floating-point computations that underflow or overflow will probably result in SIGFPE.  Don't push your luck.

       As of VOS Release 14.7.0 or later, the VOS POSIX runtime sets up the PA-RISC and IA-32 hardware floating-point
       status register so that the overflow and underflow exceptions do not trap, but instead automatically convert
       the result to infinity or zero, as appropriate.  As of this writing, there are still floating-point operations
       that can trap, for example, subtracting two infinite values.  This is recorded as suggestion posix-1022, which
       has been fixed in VOS Release 15.2 and higher.

TEST STATUS
       When Perl 5.9.0 is built using the native build process on VOS Release 14.7.0 and GNU C++/GNU Tools 2.0.2a,
       all but nine attempted tests either pass or result in TODO (ignored) failures.  The tests that fail are:

       t/io/dup, test 2 t/io/tell, test 28 t/op/pack, test 0 ext/B/t/bytecode, test 1 ext/Devel/Peek/t/Peek, test 1
       ext/Encode/t/enc_module, test 1 ext/IO/t/io_dup, test 2 lib/ExtUtils/t/MM_Unix, test 94
       lib/Net/ing/t/450_service, test 8

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.
       There are some excellent books available on the Perl language; consult a book seller.

       If you want a supported version of perl for VOS, purchase the VOS GNU C/C++ and GNU Tools Release 2.0.1 (or
       later) product from Stratus Technologies, along with a support contract (or from anyone else who will sell you
       support).

AUTHOR
       Paul Green ([email protected])

LAST UPDATE
       October 6, 2010



perl v5.16.3                                          2013-03-04                                           PERLVOS(1)