perlamiga(1)

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

6       perlamiga - Perl under AmigaOS 4.1
7

NOTE

9       This is a port of Perl 5.22.1, it is a fresh port and not in any way
10       compatible with my previous ports of Perl 5.8 and 5.16.3. This means
11       you will need to reinstall / rebuild any third party modules you have
12       installed.
13
14       newlib.library version 53.28 or greater is required.
15

SYNOPSIS

17       Once perl is installed you can read this document in the following way
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19               sh -c "perldoc perlamiga"
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21       or you may read as is: either as README.amiga, or pod/perlamiga.pod.
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DESCRIPTION

24   Prerequisites for running Perl 5.22.1 under AmigaOS 4.1
25       AmigaOS 4.1 update 6 with all updates applied as of 9th October 2013
26             The most important of which is:
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28       newlib.library version 53.28 or greater
29       AmigaOS SDK
30             Perl installs into the SDK directory structure and expects many
31             of the build tools present in the SDK to be available. So for the
32             best results install the SDK first.
33
34       abc-shell
35             If you do not have the SDK installed you must at least have abc-
36             shell installed or some other suitable sh port. This is required
37             to run external commands and should be available as 'sh' in your
38             path.
39
40   Starting Perl programs under AmigaOS 4.1
41       Perl may be run from the AmigaOS shell but for best results should be
42       run under abc-shell.  (abc-shell handles file globbing, pattern
43       expansion, and sets up environment variables in the UN*Xy way that Perl
44       expects.)
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46       For example:
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48               New Shell process 10
49               10.AmigaOS4:> sh
50               /AmigaOS4>perl path:to/myprog arg1 arrg2 arg3
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52       Abc-shell can also launch programs via the #! syntax at the start of
53       the program file, it's best use the form #!SDK:Local/C/perl so that the
54       AmigaOS shell may also find perl in the same way. AmigaOS requires the
55       script bit to be set for this to work
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57               10.AmigaOS4:> sh
58               /AmigaOS4>myprog arg1 arrg2 arg3
59
60   Limitations of Perl under AmigaOS 4.1
61       Nested Piped programs can crash when run from older abc-shells
62             abc-shell version 53.2 has a bug that can cause crashes in the
63             subprocesses used to run piped programs, if a later version is
64             available you should install it instead.
65
66       Incorrect or unexpected command line unescaping
67             newlib.library 53.30 and earlier incorrectly unescape slashed
68             escape sequences e.g. \" \n \t etc requiring unusual extra
69             escaping.
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71       Starting subprocesses via open has limitations
72                     open FH, "command |"
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74             Subprocesses started with open use a minimal popen() routine and
75             therefore they do not return pids usable with waitpid etc.
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77       If you find any other limitations or bugs then let me know.
78             Please report bugs in this version of perl to
79             andy@broad.ology.org.uk in the first instance.
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INSTALLATION

82       This guide assumes you have obtained a prebuilt archive from
83       os4depot.net.
84
85       Unpack the main archive to a temporary location (RAM: is fine).
86
87       Execute the provided install script from shell or via its icon.
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89       You must not attempt to install by hand.
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91       Once installed you may delete the temporary archive.
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93       This approach will preserve links in the installation without creating
94       duplicate binaries.
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96       If you have the earlier ports perl 5.16 or 5.8 installed you may like
97       to rename your perl executable to perl516 or perl58 or something
98       similar before the installation of 5.22.1, this will allow you to use
99       both versions at the same time.
100

Amiga Specific Modules

102   Amiga::ARexx
103       The Amiga::ARexx module allows you to easily create a perl based ARexx
104       host or to send ARexx commands to other programs.
105
106       Try "perldoc Amiga::ARexx" for more info.
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108   Amiga::Exec
109       The Amiga::Exec module introduces support for Wait().
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111       Try "perldoc Amiga::Exec" for more info.
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BUILDING

114       To build perl under AmigaOS from the patched sources you will need to
115       have a recent version of the SDK. Version 53.29 is recommended, earlier
116       versions will probably work too.
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118       With the help of Jarkko Hietaniemi the Configure system has been
119       tweaked to run under abc-shell so the recommend build process is as
120       follows.
121
122               stack 2000000
123               sh Configure -de
124               gmake
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126       This will build the default setup that installs under
127       SDK:local/newlib/lib/
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CHANGES

130       August 2015
131             Port to Perl 5.22
132             Add handling of NIL: to afstat()
133             Fix inheritance of environment variables by subprocesses.
134             Fix exec, and exit in "forked" subprocesses.
135             Fix issue with newlib's unlink, which could cause infinite loops.
136             Add flock() emulation using IDOS->LockRecord thanks to Tony Cook
137             for the suggestion.
138             Fix issue where kill was using the wrong kind of process ID
139       27th November 2013
140             Create new installation system based on installperl links and
141             Amiga protection bits now set correctly.
142             Pod now defaults to text.
143             File::Spec should now recognise an Amiga style absolute path as
144             well as an Unix style one. Relative paths must always be Unix
145             style.
146       20th November 2013
147             Configured to use SDK:Local/C/perl to start standard scripts
148             Added Amiga::Exec module with support for Wait() and AmigaOS
149             signal numbers.
150       10th October 13
151             First release of port to 5.16.3.
152