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perlmodinstall - Installing CPAN ModulesDESCRIPTION
You can think of a module as the fundamental unit of reusable Perl code; See the perlmod manpage for details. Whenever anyone creates a chunk of Perl code that they think will be useful to the world, they register as a Perl developer at http://www.perl.com/CPAN/modules/04pause.html so that they can then upload their code to CPAN. CPAN is the Comprehensive Perl Archive Network and can be accessed at http://www.perl.com/CPAN/, or searched via http://cpan.perl.com/ and http://theory.uwinnipeg.ca/mod_perl/cpan-search.pl . This documentation is for people who want to download CPAN modules and install them on their own computer. PREAMBLE You have a file ending in .tar.gz (or, less often, .zip). You know there's a tasty module inside. You must now take four steps: DECOMPRESS the file UNPACK the file into a directory BUILD the module (sometimes unnecessary) INSTALL the module. Here's how to perform each step for each operating system. This is not a substitute for reading the README and INSTALL files that might have come with your module! Also note that these instructions are tailored for installing the module into your system's repository of Perl modules. But you can install modules into any directory you wish. For instance, where I say `perl Makefile.PL', you can substitute `perl Makefile.PL PREFIX=/my/perl_directory' to install the modules into `/my/perl_directory'. Then you can use the modules from your Perl programs with `use lib "/my/perl_directory/lib/site_perl"' or sometimes just `use "/my/perl_directory"'. o If you're on Unix, You can use Andreas Koenig's CPAN module (which comes standard with Perl, or can itself be downloaded from http://www.perl.com/CPAN/modules/by-module/CPAN) to automate the following steps, from DECOMPRESS through INSTALL. A. DECOMPRESS Decompress the file with `gzip -d yourmodule.tar.gz' You can get gzip from ftp://prep.ai.mit.edu/pub/gnu. Or, you can combine this step with the next to save disk space: gzip -dc yourmodule.tar.gz | tar -xof - B. UNPACK Unpack the result with `tar -xof yourmodule.tar' C. BUILD Go into the newly-created directory and type: perl Makefile.PL make make test D. INSTALL While still in that directory, type: make install Make sure you have appropriate permissions to install the module in your Perl 5 library directory. Often, you'll need to be root. Perl maintains a record of all module installations. To look at this list, simply type: perldoc perllocal That's all you need to do on Unix systems with dynamic linking. Most Unix systems have dynamic linking--if yours doesn't, or if for another reason you have a statically-linked perl, and the module requires compilation, you'll need to build a new Perl binary that includes the module. Again, you'll probably need to be root. o If you're running Windows 95 or NT with the ActiveState port of Perl A. DECOMPRESS You can use the shareware Winzip program ( http://www.winzip.com ) to decompress and unpack modules. B. UNPACK If you used WinZip, this was already done for you. C. BUILD Does the module require compilation (i.e. does it have files that end in .xs, .c, .h, .y, .cc, .cxx, or .C)? If it does, you're on your own. You can try compiling it yourself if you have a C compiler. If you're successful, consider uploading the resulting binary to CPAN for others to use. If it doesn't, go to INSTALL. D. INSTALL Copy the module into your Perl's lib directory. That'll be one of the directories you see when you type perl -e 'print "@INC"' o If you're running Windows 95 or NT with the core Windows distribution of Perl, A. DECOMPRESS When you download the module, make sure it ends in either .tar.gz or .zip. Windows browsers sometimes download `.tar.gz' files as `_tar.tar', because early versions of Windows prohibited more than one dot in a filename. You can use the shareware WinZip program ( http://www.winzip.com ) to decompress and unpack modules. Or, you can use InfoZip's `unzip' utility ( http://www.cdrom.com/pub/infozip/ ) to uncompress `.zip' files; type `unzip yourmodule.zip' in your shell. Or, if you have a working `tar' and `gzip', you can type gzip -cd yourmodule.tar.gz | tar xvf - in the shell to decompress `yourmodule.tar.gz'. This will UNPACK your module as well. B. UNPACK The methods in DECOMPRESS will have done this for you. C. BUILD Go into the newly-created directory and type: perl Makefile.PL dmake dmake test Depending on your perl configuration, `dmake' might not be available. You might have to substitute whatever `perl -V:make' says. (Usually, that will be `nmake' or `make'.) D. INSTALL While still in that directory, type: dmake install o If you're using a Macintosh, A. DECOMPRESS In general, all Macintosh decompression utilities mentioned here can be found in the Info-Mac Hyperarchive ( http://hyperarchive.lcs.mit.edu/HyperArchive.html ). Specificly the "Commpress & Translate" listing ( http://hyperarchive.lcs.mit.edu/HyperArchive/Abstracts/cmp/HyperArchive.html ). You can either use the shareware StuffIt Expander program ( http://www.aladdinsys.com/expander/ ) in combination with DropStuff with Expander Enhancer ( http://www.aladdinsys.com/dropstuff/ ) or the freeware MacGzip program ( http://persephone.cps.unizar.es/general/gente/spd/gzip/gzip.html ). B. UNPACK If you're using DropStuff or Stuffit, you can just extract the tar archive. Otherwise, you can use the freeware suntar or Tar ( http://hyperarchive.lcs.mit.edu/HyperArchive/Archive/cmp/ ). C. BUILD Does the module require compilation? 1. If it does, Overview: You need MPW and a combination of new and old CodeWarrior compilers for MPW and libraries. Makefiles created for building under MPW use Metrowerks compilers. It's most likely possible to build without other compilers, but it has not been done successfully, to our knowledge. Read the documentation in MacPerl: Power and Ease ( http://www.ptf.com/macperl/ ) on porting/building extensions, or find an existing precompiled binary, or hire someone to build it for you. Or, ask someone on the mac-perl mailing list (mac- perl@iis.ee.ethz.ch) to build it for you. To subscribe to the mac-perl mailing list, send mail to mac-perl- request@iis.ee.ethz.ch. 2. If the module doesn't require compilation, go to INSTALL. D. INSTALL Make sure the newlines for the modules are in Mac format, not Unix format. If they are not then you might have decompressed them incorrectly. Check your decompression and unpacking utilities settings to make sure they are translating text files properly. As a last resort, you can use the perl one-liner: perl -i.bak -pe 's/(?:\015)?\012/\015/g' <filenames> on the source files. Move the files manually into the correct folders. Move the files to their final destination: This will most likely be in `$ENV{MACPERL}site_lib:' (i.e., `HD:MacPerl folder:site_lib:'). You can add new paths to the default `@INC' in the Preferences menu item in the MacPerl application (`$ENV{MACPERL}site_lib:' is added automagically). Create whatever directory structures are required (i.e., for `Some::Module', create `$ENV{MACPERL}site_lib:Some:' and put `Module.pm' in that directory). Run the following script (or something like it): #!perl -w use AutoSplit; my $dir = "${MACPERL}site_perl"; autosplit("$dir:Some:Module.pm", "$dir:auto", 0, 1, 1); Eventually there should be a way to automate the installation process; some solutions exist, but none are ready for the general public yet. o If you're on the DJGPP port of DOS, A. DECOMPRESS djtarx ( ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2/ ) will both uncompress and unpack. B. UNPACK See above. C. BUILD Go into the newly-created directory and type: perl Makefile.PL make make test You will need the packages mentioned in README.dos in the Perl distribution. D. INSTALL While still in that directory, type: make install You will need the packages mentioned in README.dos in the Perl distribution. o If you're on OS/2, Get the EMX development suite and gzip/tar, from either Hobbes ( http://hobbes.nmsu.edu ) or Leo ( http://www.leo.org ), and then follow the instructions for Unix. o If you're on VMS, When downloading from CPAN, save your file with a .tgz extension instead of .tar.gz. All other periods in the filename should be replaced with underscores. For example, `Your-Module-1.33.tar.gz' should be downloaded as `Your-Module-1_33.tgz'. A. DECOMPRESS Type gzip -d Your-Module.tgz or, for zipped modules, type unzip Your-Module.zip Executables for gzip, zip, and VMStar ( Alphas: http://www.openvms.digital.com/freeware/000TOOLS/ALPHA/ and Vaxen: http://www.openvms.digital.com/freeware/000TOOLS/VAX/ ). gzip and tar are also available at ftp://ftp.digital.com/pub/VMS. Note that GNU's gzip/gunzip is not the same as Info- ZIP's zip/unzip package. The former is a simple compression tool; the latter permits creation of multi- file archives. B. UNPACK If you're using VMStar: VMStar xf Your-Module.tar Or, if you're fond of VMS command syntax: tar/extract/verbose Your_Module.tar C. BUILD Make sure you have MMS (from Digital) or the freeware MMK ( available from MadGoat at http://www.madgoat.com ). Then type this to create the DESCRIP.MMS for the module: perl Makefile.PL Now you're ready to build: mms mms test Substitute `mmk' for `mms' above if you're using MMK. D. INSTALL Type mms install Substitute `mmk' for `mms' above if you're using MMK. o If you're on MVS, Introduce the .tar.gz file into an HFS as binary; don't translate from ASCII to EBCDIC. A. DECOMPRESS Decompress the file with C<gzip -d yourmodule.tar.gz> You can get gzip from http://www.s390.ibm.com/products/oe/bpxqp1.html. B. UNPACK Unpack the result with pax -o to=IBM-1047,from=ISO8859-1 -r < yourmodule.tar The BUILD and INSTALL steps are identical to those for Unix. Some modules generate Makefiles that work better with GNU make, which is available from http://www.mks.com/s390/gnu/index.htm.HEY
If you have any suggested changes for this page, let me know. Please don't send me mail asking for help on how to install your modules. There are too many modules, and too few Orwants, for me to be able to answer or even acknowledge all your questions. Contact the module author instead, or post to comp.lang.perl.modules, or ask someone familiar with Perl on your operating system.AUTHOR
Jon Orwant orwant@tpj.com The Perl Journal, http://tpj.com with invaluable help from Brandon Allbery, Charles Bailey, Graham Barr, Dominic Dunlop, Jarkko Hietaniemi, Ben Holzman, Tom Horsley, Nick Ing-Simmons, Tuomas J. Lukka, Laszlo Molnar, Chris Nandor, Alan Olsen, Peter Prymmer, Gurusamy Sarathy, Christoph Spalinger, Dan Sugalski, Larry Virden, and Ilya Zakharevich. July 22, 1998COPYRIGHT
Copyright (C) 1998 Jon Orwant. All Rights Reserved. Permission is granted to make and distribute verbatim copies of this documentation provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this documentation under the conditions for verbatim copying, provided also that they are marked clearly as modified versions, that the authors' names and title are unchanged (though subtitles and additional authors' names may be added), and that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this documentation into another language, under the above conditions for modified versions.
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