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PERLMACHTEN(1) Perl Programmers Reference Guide PERLMACHTEN(1)
NAME
README.machten - Perl version 5 on Power MachTen systems
DESCRIPTION
This document describes how to build Perl 5 on Power MachTen systems, and discusses a few
wrinkles in the implementation.
Perl version 5.8.x and greater not supported
Power MachTen is not supported by versions of Perl later than 5.6.x. If you wish to build
a version from the 5.6 track, please obtain a source distribution from the archive at
<http://cpan.org/src/5.0/> and follow the instructions in its README.machten file.
MachTen is no longer supported by its developers, Tenon Intersystems. A UNIX environment
hosted on Mac OS Classic, MachTen has been superseded by Mac OS X and by BSD and Linux
implementations for Macintosh hardware. The final version of Power MachTen, 4.1.4, lacks
many features found in modern implementations of UNIX, and has a number of bugs. These
shortcomings prevent recent versions of Perl from being able to use extensions on MachTen,
and cause numerous test suite failures in the perl core.
In September 2003, a discussion on the MachTen mailing list determined that there was no
interest in making a later version of Perl build successfully on MachTen. Consequently,
support for building Perl under MachTen has been suppressed in Perl distributions
published after February 2004. The hints file, hints/machten.sh, remains a part of the
distributions for reference purposes.
Compiling Perl 5.6.x on MachTen
To compile perl 5.6.x under MachTen 4.1.4 (and probably earlier versions):
./Configure -de
make
make test
make install
This builds and installs a statically-linked perl; MachTen's dynamic linking facilities
are not adequate to support Perl's use of dynamically linked libraries. (See
hints/machten.sh for more information.)
You should have at least 32 megabytes of free memory on your system before running the
"make" command.
For much more information on building perl -- for example, on how to change the default
installation directory -- see INSTALL.
Failures during "make test" on MachTen
op/lexassign.t
This test may fail when first run after building perl. It does not fail subsequently.
The cause is unknown.
pragma/warnings.t
Test 257 fails due to a failure to warn about attempts to read from a filehandle which
is a duplicate of stdout when stdout is attached to a pipe. The output of the test
contains a block comment which discusses a different failure, not applicable to
MachTen.
The root of the problem is that Machten does not assign a file type to either end of a
pipe (see stat), resulting, among other things in Perl's "-p" test failing on file
descriptors belonging to pipes. As a result, perl becomes confused, and the test for
reading from a write-only file fails. I am reluctant to patch perl to get around
this, as it's clearly an OS bug (about which Tenon has been informed), and limited in
its effect on practical Perl programs.
Building external modules on MachTen
To add an external module to perl, build in the normal way, which is documented in
ExtUtils::MakeMaker, or which can be driven automatically by the CPAN module (see CPAN),
which is part of the standard distribution. If you want to install a module which
contains XS code (C or C++ source which compiles to object code for linking with perl),
you will have to replace your perl binary with a new version containing the new
statically-linked object module. The build process tells you how to do this.
There is a gotcha, however, which users usually encounter immediately they respond to
CPAN's invitation to "install Bundle::CPAN". When installing a bundle -- a group of
modules which together achieve some particular purpose, the installation process for later
modules in the bundle tends to assume that earlier modules have been fully installed and
are available for use. This is not true on a statically-linked system for earlier modules
which contain XS code. As a result the installation of the bundle fails. The work-around
is not to install the bundle as a one-shot operation, but instead to see what modules it
contains, and install these one-at-a-time by hand in the order given.
AUTHOR
Dominic Dunlop <domo AT computer.org>
DATE
Version 1.1.0 2004-02-13
perl v5.10.0 2011-06-30 PERLMACHTEN(1)
Generated by $Id: phpMan.php,v 4.49 2006/02/26 13:18:18 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2012-05-26 01:41 @38.107.179.239 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)