| 1 | If you read this file _as_is_, just ignore the funny characters you
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| 2 | see. It is written in the POD format (see perlpod manpage) which is
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| 3 | specially designed to be readable as is.
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| 4 |
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| 5 | =head1 NAME
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| 6 |
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| 7 | perldos - Perl under DOS, W31, W95.
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| 8 |
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| 9 | =head1 SYNOPSIS
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| 10 |
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| 11 | These are instructions for building Perl under DOS (or w??), using
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| 12 | DJGPP v2.03 or later. Under w95 long filenames are supported.
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| 13 |
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| 14 | =head1 DESCRIPTION
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| 15 |
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| 16 | Before you start, you should glance through the README file
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| 17 | found in the top-level directory where the Perl distribution
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| 18 | was extracted. Make sure you read and understand the terms under
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| 19 | which this software is being distributed.
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| 20 |
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| 21 | This port currently supports MakeMaker (the set of modules that
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| 22 | is used to build extensions to perl). Therefore, you should be
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| 23 | able to build and install most extensions found in the CPAN sites.
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| 24 |
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| 25 | Detailed instructions on how to build and install perl extension
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| 26 | modules, including XS-type modules, is included. See 'BUILDING AND
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| 27 | INSTALLING MODULES'.
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| 28 |
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| 29 | =head2 Prerequisites for Compiling Perl on DOS
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| 30 |
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| 31 | =over 4
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| 32 |
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| 33 | =item DJGPP
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| 34 |
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| 35 | DJGPP is a port of GNU C/C++ compiler and development tools to 32-bit,
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| 36 | protected-mode environment on Intel 32-bit CPUs running MS-DOS and compatible
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| 37 | operating systems, by DJ Delorie <[email protected]> and friends.
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| 38 |
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| 39 | For more details (FAQ), check out the home of DJGPP at:
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| 40 |
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| 41 | http://www.delorie.com/djgpp/
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| 42 |
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| 43 | If you have questions about DJGPP, try posting to the DJGPP newsgroup:
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| 44 | comp.os.msdos.djgpp, or use the email gateway [email protected].
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| 45 |
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| 46 | You can find the full DJGPP distribution on any SimTel.Net mirror all over
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| 47 | the world. Like:
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| 48 |
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| 49 | ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2*
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| 50 |
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| 51 | You need the following files to build perl (or add new modules):
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| 52 |
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| 53 | v2/djdev203.zip
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| 54 | v2gnu/bnu2112b.zip
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| 55 | v2gnu/gcc2953b.zip
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| 56 | v2gnu/bsh204b.zip
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| 57 | v2gnu/mak3791b.zip
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| 58 | v2gnu/fil40b.zip
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| 59 | v2gnu/sed3028b.zip
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| 60 | v2gnu/txt20b.zip
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| 61 | v2gnu/dif272b.zip
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| 62 | v2gnu/grep24b.zip
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| 63 | v2gnu/shl20jb.zip
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| 64 | v2gnu/gwk306b.zip
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| 65 | v2misc/csdpmi5b.zip
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| 66 |
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| 67 | or possibly any newer version.
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| 68 |
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| 69 | =item Pthreads
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| 70 |
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| 71 | Thread support is not tested in this version of the djgpp perl.
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| 72 |
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| 73 | =back
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| 74 |
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| 75 | =head2 Shortcomings of Perl under DOS
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| 76 |
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| 77 | Perl under DOS lacks some features of perl under UNIX because of
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| 78 | deficiencies in the UNIX-emulation, most notably:
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| 79 |
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| 80 | =over 4
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| 81 |
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| 82 | =item *
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| 83 |
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| 84 | fork() and pipe()
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| 85 |
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| 86 | =item *
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| 87 |
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| 88 | some features of the UNIX filesystem regarding link count and file dates
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| 89 |
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| 90 | =item *
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| 91 |
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| 92 | in-place operation is a little bit broken with short filenames
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| 93 |
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| 94 | =item *
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| 95 |
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| 96 | sockets
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| 97 |
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| 98 | =back
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| 99 |
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| 100 | =head2 Building Perl on DOS
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| 101 |
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| 102 | =over 4
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| 103 |
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| 104 | =item *
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| 105 |
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| 106 | Unpack the source package F<perl5.8*.tar.gz> with djtarx. If you want
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| 107 | to use long file names under w95 and also to get Perl to pass all its
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| 108 | tests, don't forget to use
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| 109 |
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| 110 | set LFN=y
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| 111 | set FNCASE=y
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| 112 |
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| 113 | before unpacking the archive.
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| 114 |
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| 115 | =item *
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| 116 |
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| 117 | Create a "symlink" or copy your bash.exe to sh.exe in your C<($DJDIR)/bin>
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| 118 | directory.
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| 119 |
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| 120 | ln -s bash.exe sh.exe
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| 121 |
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| 122 | [If you have the recommended version of bash for DJGPP, this is already
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| 123 | done for you.]
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| 124 |
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| 125 | And make the C<SHELL> environment variable point to this F<sh.exe>:
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| 126 |
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| 127 | set SHELL=c:/djgpp/bin/sh.exe (use full path name!)
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| 128 |
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| 129 | You can do this in F<djgpp.env> too. Add this line BEFORE any section
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