ActiveState!

ActivePerl Documentation
Table of Contents

(Usage Statistics)
(about this ver)


* Getting Started
    * Welcome To ActivePerl
    * Release Notes
    * Readme
    * ActivePerl Change Log
* Install Notes
    * Linux
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    * Windows
* ActivePerl Components
    * Overview
    * PPM
    * Windows Specifics
       * OLE Browser
       * PerlScript
       * Perl for ISAPI
       * PerlEZ
* ActivePerl FAQ
    * Introduction
    * Availability & Install
    * Using PPM
    * Docs & Support
    * Windows Specifics
       * Perl for ISAPI
       * Windows 9X/NT/2000
       * Quirks
       * Web Server Config
       * Web programming
       * Programming
       * Modules & Samples
       * Embedding & Extending
       * Using OLE with Perl
* Windows Scripting
    * Active Server Pages
    * Windows Script Host
    * Windows Script Components

Core Perl Documentation


* perl
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* XSLoader

 perldos - Perl under DOS, W31, W95.


NAME

perldos - Perl under DOS, W31, W95.


SYNOPSIS

These are instructions for building Perl under DOS (or w??), using DJGPP v2.01 or later. Under w95 long filenames are supported.


DESCRIPTION

Before you start, you should glance through the README file found in the top-level directory where the Perl distribution was extracted. Make sure you read and understand the terms under which this software is being distributed.

This port currently supports MakeMaker (the set of modules that is used to build extensions to perl). Therefore, you should be able to build and install most extensions found in the CPAN sites.

Prerequisites

DJGPP
DJGPP is a port of GNU C/C++ compiler and development tools to 32-bit, protected-mode environment on Intel 32-bit CPUs running MS-DOS and compatible operating systems, by DJ Delorie <dj@delorie.com> and friends.

For more details (FAQ), check out the home of DJGPP at:

        http://www.delorie.com/djgpp/

If you have questions about DJGPP, try posting to the DJGPP newsgroup: comp.os.msdos.djgpp, or use the email gateway djgpp@delorie.com.

You can find the full DJGPP distribution on any SimTel.Net mirror all over the world. Like:

        ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2*

You need the following files to build perl (or add new modules):

        v2/djdev202.zip
        v2/bnu27b.zip
        v2gnu/gcc2721b.zip
        v2gnu/bsh1147b.zip
        v2gnu/mak3761b.zip
        v2gnu/fil316b.zip
        v2gnu/sed118b.zip
        v2gnu/txt122b.zip
        v2gnu/dif271b.zip
        v2gnu/grep21b.zip
        v2gnu/shl112b.zip
        v2gnu/gawk303b.zip
        v2misc/csdpmi4b.zip

or possibly any newer version.

Pthreads
Thread support is not tested in this version of the djgpp perl.

Shortcomings of Perl under DOS

Perl under DOS lacks some features of perl under UNIX because of deficiencies in the UNIX-emulation, most notably:

  • fork() and pipe()

  • some features of the UNIX filesystem regarding link count and file dates

  • in-place operation is a little bit broken with short filenames

  • sockets

Building

  • Unpack the source package perl5.6*.tar.gz with djtarx. If you want to use long file names under w95, don't forget to use
            set LFN=y

    before unpacking the archive.

  • Create a ``symlink'' or copy your bash.exe to sh.exe in your ($DJDIR)/bin directory.
            ln -s bash.exe sh.exe

    And make the SHELL environment variable point to this sh.exe:

            set SHELL=c:/djgpp/bin/sh.exe (use full path name!)

    You can do this in djgpp.env too. Add this line BEFORE any section definition:

            +SHELL=%DJDIR%/bin/sh.exe

  • If you have split.exe and gsplit.exe in your path, then rename split.exe to djsplit.exe, and gsplit.exe to split.exe. Copy or link gecho.exe to echo.exe if you don't have echo.exe. Copy or link gawk.exe to awk.exe if you don't have awk.exe.

  • Chdir to the djgpp subdirectory of perl toplevel and type the following command:
            configure.bat

    This will do some preprocessing then run the Configure script for you. The Configure script is interactive, but in most cases you just need to press ENTER.

    If the script says that your package is incomplete, and asks whether to continue, just answer with Y (this can only happen if you don't use long filenames).

    When Configure asks about the extensions, I suggest IO and Fcntl, and if you want database handling then SDBM_File or GDBM_File (you need to install gdbm for this one). If you want to use the POSIX extension (this is the default), make sure that the stack size of your cc1.exe is at least 512kbyte (you can check this with: stubedit cc1.exe).

    You can use the Configure script in non-interactive mode too. When I built my perl.exe, I used something like this:

            configure.bat -des

    You can find more info about Configure's command line switches in the INSTALL file.

    When the script ends, and you want to change some values in the generated config.sh file, then run

            sh Configure -S

    after you made your modifications.

    IMPORTANT: if you use this -S switch, be sure to delete the CONFIG environment variable before running the script:

            set CONFIG=

  • Now you can compile Perl. Type:
            make

Testing

Type:

        make test

If you're lucky you should see ``All tests successful''. But there can be a few failed subtests (less than 5 hopefully) depending on some external conditions (e.g. some subtests fail under linux/dosemu or plain dos with short filenames only).

Installation

Type:

        make install

This will copy the newly compiled perl and libraries into your DJGPP directory structure. Perl.exe and the utilities go into ($DJDIR)/bin, and the library goes under ($DJDIR)/lib/perl5. The pod documentation goes under ($DJDIR)/lib/perl5/pod.


AUTHOR

Laszlo Molnar, laszlo.molnar@eth.ericsson.se


SEE ALSO

perl(1).

 perldos - Perl under DOS, W31, W95.