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
-of the VOS GNU C++ and GNU Tools product from Stratus
-Technologies.
+(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, you must have a Continuum
-platform running VOS Release 14.5.0 or later, the STCP product,
-and the GNU C++ and GNU Tools, Release 2.0.1 or later.
+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. All of the test cases
-that are executed should pass.
+will configure, build, and test perl.
=head1 INSTALLING PERL IN VOS
=item 1
If you have built perl using the Configure script, ensure that
-you have modify permission to C<< >system>ported >> and type
+you have modify and default write permission to C<<
+>system>ported >> and all subdirectories. Then type
gmake install
extensions or modules distributed with perl, the following
directories can be used to hold such files:
- >system>ported>lib>perl5>5.9.0>68k
- >system>ported>lib>perl5>5.9.0>860
>system>ported>lib>perl5>5.9.0>7100
>system>ported>lib>perl5>5.9.0>8000
+ >system>ported>lib>perl5>5.9.0>i786
=item 3
Put site-specific architecture-dependent files into one of the
following directories:
- >system>ported>lib>perl5>site_perl>5.9.0>68k
- >system>ported>lib>perl5>site_perl>5.9.0>860
>system>ported>lib>perl5>site_perl>5.9.0>7100
>system>ported>lib>perl5>site_perl>5.9.0>8000
+ >system>ported>lib>perl5>site_perl>5.9.0>i786
=item 4
=head2 Handling of underflow and overflow
-VOS does not support automatically mapping overflowed
-floating-point values to +infinity, nor automatically mapping
-underflowed floating-point values to -infinity, 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.
+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, 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 is built using the native build process on VOS Release
-14.5.0 and GNU C++/GNU Tools 2.0.1, all attempted tests either
-pass or result in TODO (ignored) failures.
+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
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++ and GNU Tools Release 2.0.1 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 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
=head1 LAST UPDATE
-August 12, 2002
+February 7, 2008
=cut