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PERLAMIGA(1)                     Perl Programmers Reference Guide                    PERLAMIGA(1)

NAME
       perlamiga - Perl under AmigaOS 4.1

NOTE
       This is a port of Perl 5.22.1, it is a fresh port and not in any way compatible with my
       previous ports of Perl 5.8 and 5.16.3. This means you will need to reinstall / rebuild any
       third party modules you have installed.

       newlib.library version 53.28 or greater is required.

SYNOPSIS
       Once perl is installed you can read this document in the following way

               sh -c "perldoc perlamiga"

       or you may read as is: either as README.amiga, or pod/perlamiga.pod.

DESCRIPTION
   Prerequisites for running Perl 5.22.1 under AmigaOS 4.1
       AmigaOS 4.1 update 6 with all updates applied as of 9th October 2013
             The most important of which is:

       newlib.library version 53.28 or greater
       AmigaOS SDK
             Perl installs into the SDK directory structure and expects many of the build tools
             present in the SDK to be available. So for the best results install the SDK first.

       abc-shell
             If you do not have the SDK installed you must at least have abc-shell installed or
             some other suitable sh port. This is required to run external commands and should be
             available as 'sh' in your path.

   Starting Perl programs under AmigaOS 4.1
       Perl may be run from the AmigaOS shell but for best results should be run under abc-shell.
       (abc-shell handles file globbing, pattern expansion, and sets up environment variables in
       the UN*Xy way that Perl expects.)

       For example:

               New Shell process 10
               10.AmigaOS4:> sh
               /AmigaOS4>perl path:to/myprog arg1 arrg2 arg3

       Abc-shell can also launch programs via the #! syntax at the start of the program file,
       it's best use the form #!SDK:Local/C/perl so that the AmigaOS shell may also find perl in
       the same way. AmigaOS requires the script bit to be set for this to work

               10.AmigaOS4:> sh
               /AmigaOS4>myprog arg1 arrg2 arg3

   Limitations of Perl under AmigaOS 4.1
       Nested Piped programs can crash when run from older abc-shells
             abc-shell version 53.2 has a bug that can cause crashes in the subprocesses used to
             run piped programs, if a later version is available you should install it instead.

       Incorrect or unexpected command line unescaping
             newlib.library 53.30 and earlier incorrectly unescape slashed escape sequences e.g.
             \" \n \t etc requiring unusual extra escaping.

       Starting subprocesses via open has limitations
                     open FH, "command |"

             Subprocesses started with open use a minimal popen() routine and therefore they do
             not return pids usable with waitpid etc.

       If you find any other limitations or bugs then let me know.
             Please report bugs in this version of perl to andy AT broad.uk in the first
             instance.

INSTALLATION
       This guide assumes you have obtained a prebuilt archive from os4depot.net.

       Unpack the main archive to a temporary location (RAM: is fine).

       Execute the provided install script from shell or via its icon.

       You must not attempt to install by hand.

       Once installed you may delete the temporary archive.

       This approach will preserve links in the installation without creating duplicate binaries.

       If you have the earlier ports perl 5.16 or 5.8 installed you may like to rename your perl
       executable to perl516 or perl58 or something similar before the installation of 5.22.1,
       this will allow you to use both versions at the same time.

Amiga Specific Modules
   Amiga::ARexx
       The Amiga::ARexx module allows you to easily create a perl based ARexx host or to send
       ARexx commands to other programs.

       Try "perldoc Amiga::ARexx" for more info.

   Amiga::Exec
       The Amiga::Exec module introduces support for Wait().

       Try "perldoc Amiga::Exec" for more info.

BUILDING
       To build perl under AmigaOS from the patched sources you will need to have a recent
       version of the SDK. Version 53.29 is recommended, earlier versions will probably work too.

       With the help of Jarkko Hietaniemi the Configure system has been tweaked to run under abc-
       shell so the recommend build process is as follows.

               stack 2000000
               sh Configure -de
               gmake

       This will build the default setup that installs under SDK:local/newlib/lib/

CHANGES
       August 2015
             Port to Perl 5.22
             Add handling of NIL: to afstat()
             Fix inheritance of environment variables by subprocesses.
             Fix exec, and exit in "forked" subprocesses.
             Fix issue with newlib's unlink, which could cause infinite loops.
             Add flock() emulation using IDOS->LockRecord thanks to Tony Cook for the suggestion.
             Fix issue where kill was using the wrong kind of process ID
       27th November 2013
             Create new installation system based on installperl links and Amiga protection bits
             now set correctly.
             Pod now defaults to text.
             File::Spec should now recognise an Amiga style absolute path as well as an Unix
             style one. Relative paths must always be Unix style.
       20th November 2013
             Configured to use SDK:Local/C/perl to start standard scripts
             Added Amiga::Exec module with support for Wait() and AmigaOS signal numbers.
       10th October 13
             First release of port to 5.16.3.

SEE ALSO
       You like this port?  See <http://www.broad.ology.org.uk/amiga/> for how you can help.

perl v5.34.0                                2023-11-23                               PERLAMIGA(1)

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