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- If you read this file _as_is_, just ignore the funny characters you
- see. It is written in the POD format (see perlpod manpage) which is
- specially designed to be readable as is.
-
- =head1 NAME
-
- perldos - Perl under DOS, W31, W95.
-
- =head1 SYNOPSIS
-
- These are instructions for building Perl under DOS (or w??), using
- DJGPP v2.01 or later. Under w95 long filenames are supported.
-
- =head1 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.
-
- =head2 Prerequisites
-
- =over 4
-
- =item 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.
-
- =item Pthreads
-
- Thread support is not tested in this version of the djgpp perl.
-
- =back
-
- =head2 Shortcomings of Perl under DOS
-
- Perl under DOS lacks some features of perl under UNIX because of
- deficiencies in the UNIX-emulation, most notably:
-
- =over 4
-
- =item *
-
- fork() and pipe()
-
- =item *
-
- some features of the UNIX filesystem regarding link count and file dates
-
- =item *
-
- in-place operation is a little bit broken with short filenames
-
- =item *
-
- sockets
-
- =back
-
- =head2 Building
-
- =over 4
-
- =item *
-
- Unpack the source package F<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.
-
- =item *
-
- Create a "symlink" or copy your bash.exe to sh.exe in your C<($DJDIR)/bin>
- directory.
-
- ln -s bash.exe sh.exe
-
- And make the C<SHELL> environment variable point to this F<sh.exe>:
-
- set SHELL=c:/djgpp/bin/sh.exe (use full path name!)
-
- You can do this in F<djgpp.env> too. Add this line BEFORE any section
- definition:
-
- +SHELL=%DJDIR%/bin/sh.exe
-
- =item *
-
- If you have F<split.exe> and F<gsplit.exe> in your path, then rename
- F<split.exe> to F<djsplit.exe>, and F<gsplit.exe> to F<split.exe>.
- Copy or link F<gecho.exe> to F<echo.exe> if you don't have F<echo.exe>.
- Copy or link F<gawk.exe> to F<awk.exe> if you don't have F<awk.exe>.
-
- =item *
-
- 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 F<cc1.exe> is at least 512kbyte (you can check this
- with: C<stubedit cc1.exe>).
-
- You can use the Configure script in non-interactive mode too.
- When I built my F<perl.exe>, I used something like this:
-
- configure.bat -des
-
- You can find more info about Configure's command line switches in
- the F<INSTALL> file.
-
- When the script ends, and you want to change some values in the
- generated F<config.sh> file, then run
-
- sh Configure -S
-
- after you made your modifications.
-
- IMPORTANT: if you use this C<-S> switch, be sure to delete the CONFIG
- environment variable before running the script:
-
- set CONFIG=
-
- =item *
-
- Now you can compile Perl. Type:
-
- make
-
- =back
-
- =head2 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).
-
- =head2 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 C<($DJDIR)/bin>,
- and the library goes under C<($DJDIR)/lib/perl5>. The pod documentation
- goes under C<($DJDIR)/lib/perl5/pod>.
-
- =head1 AUTHOR
-
- Laszlo Molnar, F<laszlo.molnar@eth.ericsson.se>
-
- =head1 SEE ALSO
-
- perl(1).
-
- =cut
-
-