1PERLVOS(1) Perl Programmers Reference Guide PERLVOS(1)
2
6 perlvos - Perl for Stratus VOS
7
9 This file contains notes for building perl on the Stratus VOS operating
10 system. Perl is a scripting or macro language that is popular on many
11 systems. See perlbook for a number of good books on Perl.
12 These are instructions for building Perl from source. This version of
14 Perl is not supported on VOS Release 14.2 or earlier releases. If you
15 have a Continuum platform running VOS Release 14.3 through 14.7,
16 download Perl from the Stratus Anonymous FTP site at
17 ftp://ftp.stratus.com/pub/vos/posix/ga/continuum/continuum.html. If
18 you have a V Series platform running VOS Release 15.0 or later, or if
19 you have a V Series platform running OpenVOS Release 17.0 or later,
20 download Perl from
21 ftp://ftp.stratus.com/pub/vos/posix/ga/v-series/v-series.html. The
22 perl distribution files on the Stratus anonymous FTP site are stored in
23 a format called a "bundled file". Instructions for unbundling the Perl
24 distribution file are at
25 ftp://ftp.stratus.com/pub/vos/utility/utility.html.
26 If you are running VOS Release 14.4.1 or later, you can obtain a pre-
28 compiled, supported copy of perl by purchasing Release 2.0.1 (or later)
29 of the VOS GNU C/C++ and GNU Tools product from Stratus Technologies.
30
32 To build perl from its source code on the Stratus Continuum platform,
33 you must be have VOS Release 14.5.0 or later, the STCP product, and the
34 GNU C/C++ and GNU Tools, Release 2.0.1 or later. On the V Series
35 platform you must have VOS Release 15.0.0 or later, and any version of
36 the GNU C/C++ and GNU Tools product.
37 To build full perl using the supplied Configure script and makefiles,
39 change to the "vos" subdirectory and type the command
40 "compile_full_perl" or "start_process compile_full_perl". This will
41 configure, build, and test perl.
42
44 1. If you have built perl using the Configure script, ensure that you
45 have modify and default write permission to ">system>ported" and
46 all subdirectories. Then type
47 gmake install
49 2. While there are currently no architecture-specific extensions or
51 modules distributed with perl, the following directories can be
52 used to hold such files (replace the string VERSION by the
53 appropriate version number):
54 >system>ported>lib>perl5>VERSION>7100
56 >system>ported>lib>perl5>VERSION>8000
57 >system>ported>lib>perl5>VERSION>i786
58 3. Site-specific perl extensions and modules can be installed in one
60 of two places. Put architecture-independent files into:
61 >system>ported>lib>perl5>site_perl>VERSION
63 Put site-specific architecture-dependent files into one of the
65 following directories:
66 >system>ported>lib>perl5>site_perl>VERSION>7100
68 >system>ported>lib>perl5>site_perl>VERSION>8000
69 >system>ported>lib>perl5>site_perl>VERSION>i786
70 4. You can examine the @INC variable from within a perl program to see
72 the order in which Perl searches these directories.
73
75 Restrictions of Perl on VOS
76 This port of Perl version 5 to VOS prefers Unix-style, slash-separated
77 pathnames over VOS-style greater-than-separated pathnames. VOS-style
78 pathnames should work in most contexts, but if you have trouble,
79 replace all greater-than characters by slash characters. Because the
80 slash character is used as a pathname delimiter, Perl cannot process
81 VOS pathnames containing a slash character in a directory or file name;
82 these must be renamed.
83 This port of Perl also uses Unix-epoch date values internally. As long
85 as you are dealing with ASCII character string representations of
86 dates, this should not be an issue. The supported epoch is January 1,
87 1980 to January 17, 2038.
88 See the file pod/perlport.pod for more information about the VOS port
90 of Perl.
91 Handling of underflow and overflow
93 Prior to VOS Release 14.7.0, VOS does not support automatically mapping
94 overflowed floating-point values to +infinity, nor automatically
95 mapping underflowed floating-point values to zero, unlike many other
96 platforms. The Perl pack function has been modified to perform such
97 mapping in software on VOS. Performing other floating-point
98 computations that underflow or overflow will probably result in SIGFPE.
99 Don't push your luck.
100 As of VOS Release 14.7.0 or later, the VOS POSIX runtime sets up the
102 PA-RISC and IA-32 hardware floating-point status register so that the
103 overflow and underflow exceptions do not trap, but instead
104 automatically convert the result to infinity or zero, as appropriate.
105 As of this writing, there are still floating-point operations that can
106 trap, for example, subtracting two infinite values. This is recorded
107 as suggestion posix-1022, which has been fixed in VOS Release 15.2 and
108 higher.
109
111 When Perl 5.9.0 is built using the native build process on VOS Release
112 14.7.0 and GNU C++/GNU Tools 2.0.2a, all but nine attempted tests
113 either pass or result in TODO (ignored) failures. The tests that fail
114 are:
115 t/io/dup, test 2 t/io/tell, test 28 t/op/pack, test 0 ext/B/t/bytecode,
117 test 1 ext/Devel/Peek/t/Peek, test 1 ext/Encode/t/enc_module, test 1
118 ext/IO/t/io_dup, test 2 lib/ExtUtils/t/MM_Unix, test 94
119 lib/Net/ing/t/450_service, test 8
120
122 I'm offering this port "as is". You can ask me questions, but I can't
123 guarantee I'll be able to answer them. There are some excellent books
124 available on the Perl language; consult a book seller.
125 If you want a supported version of perl for VOS, purchase the VOS GNU
127 C/C++ and GNU Tools Release 2.0.1 (or later) product from Stratus
128 Technologies, along with a support contract (or from anyone else who
129 will sell you support).
130
132 Paul Green (Paul.Green@stratus.com)
133
135 October 6, 2010
136perl v5.16.3 2013-03-04 PERLVOS(1)