-Perl 5 README file for the Stratus VOS operating system.
-Paul Green (Paul_Green@stratus.com)
-August 12, 1998
-
-Introduction
-------------
-This is a port of Perl version 5, revision 005-02, 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
+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
+
+README.vos - Perl for Stratus VOS
+
+=head1 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 L<perlbook> 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", "execlp",
-"execl", "execvp", "fork", and "waitpid".
-
-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 in this distribution, 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 to ftp.stratus.com
- anonymously 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.
-
-To build build 5, change to one of the VOS object directories
-(e.g., perl5.005_02>vos>obj), and give the command "<build". If
-you have the cross-compilers and wish to build for a specific
-architecture, say "<build -processor pa7100" (for example). You
-can also customize the "compile_perl.cm" command macro for your
-system.
-
-Changes to Perl for VOS
------------------------
-1. The header perl.h was changed to include vosish.h instead
- of unixish.h. This change is necessary because VOS POSIX.1
- does not (yet) implement the getgrname() or getgrgid()
- functions.
-
-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 the
-error message looks like, compile and execute
-"test_vos_dummies.c".
-
-Restrictions
-------------
-This port of Perl version 5 to VOS uses Unix-style,
-slash-separated pathnames, not VOS-style greater-than-separated
-pathnames. If you wish to have it use VOS-style pathnames, try
-setting the external variable s$c_options to 4 with the
-following command line. Note that this way of configuring Perl
-5 has not been tested; I don't know if Perl can handle the
-presence of the greater-thans, and the absence of the slashes.
-
- set_external_variable s$c_options -in perl.pm -type integer -to 4
-
-The following command can be used to check the value:
-
- get_external_variable s$c_options -in perl.pm -type integer
-
-See the documentation for VOS POSIX.1 for the full set of option
-values.
-
-Support Status
---------------
+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.
+
+=head1 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.
+
+=head1 INSTALLING PERL IN VOS
+
+=over 4
+
+=item 1
+
+If 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>7100
+ >system>ported>lib>perl5>VERSION>8000
+ >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>7100
+ >system>ported>lib>perl5>site_perl>VERSION>8000
+ >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 VOS
+
+=head2 Restrictions of Perl on VOS
+
+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.
+
+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
+port of Perl.
+
+=head2 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.
+
+=head1 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
+
+=head1 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.
+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).
+
+=head1 AUTHOR
+
+Paul Green (Paul.Green@stratus.com)
+
+=head1 LAST UPDATE
-(end)
+October 6, 2010
+=cut
https://perl5.git.perl.org / perl5.git / blobdiff