Update README.vos to reflect recent changes

Author: paulg1973

README.vos

@@ -4,57 +4,42 @@ specially designed to be readable as is.
 
 =head1 NAME
 
-perlvos - Perl for Stratus VOS
+perlvos - Perl for Stratus OpenVOS
 
 =head1 SYNOPSIS
 
-This file contains notes for building perl on the Stratus VOS
+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.
+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 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.
+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 Release 2.0.1
-(or later) of the VOS GNU C/C++ and GNU Tools product from
-Stratus Technologies.
+pre-compiled, supported copy of perl by purchasing the GNU Tools
+product from Stratus Technologies.
 
-=head1 BUILDING PERL FOR VOS
+=head1 BUILDING PERL FOR OPENVOS
 
-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 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.
 
-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.
+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 VOS
+=head1 INSTALLING PERL IN OPENVOS
 
 =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
+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
 
@@ -65,8 +50,6 @@ 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
@@ -79,8 +62,6 @@ two places.  Put architecture-independent files into:
 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
@@ -90,61 +71,33 @@ to see the order in which Perl searches these directories.
 
 =back
 
-=head1 USING PERL IN VOS
+=head1 USING PERL IN OPENVOS
 
-=head2 Restrictions of Perl on VOS
+=head2 Restrictions of Perl on OpenVOS
 
-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 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.
 
-=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
+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
 
@@ -153,17 +106,16 @@ 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).
+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 ([email protected])
 
 =head1 LAST UPDATE
 
-October 6, 2010
+February 28, 2013
 
 =cut