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.
Detailed instructions on how to build and install perl extension modules, including XS-type modules, is included. See ' BUILDING AND INSTALLING MODULES '.
protected-mode environment on Intel 32-bit CPUs running MS-DOS and compatible operating systems, by DJ Delorie
If you have questions about DJGPP , try posting to the DJGPP newsgroup: comp.os.msdos.djgpp, or use the email gateway firstname.lastname@example.org.
v2/bnu2951b.zip v2gnu/gcc2952b.zip v2gnu/bsh204b.zip v2gnu/mak3791b.zip v2gnu/fil316b.zip v2gnu/sed302b.zip v2gnu/txt20b.zip v2gnu/dif272b.zip v2gnu/grep24b.zip v2gnu/shl112b.zip v2gnu/gawk303b.zip v2misc/csdpmi4b.zip or possibly any newer version.
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
Unpack the source package perl5.6*.tar.gz with djtarx. If you want to use long file names under w95 and also to get Perl to pass all its tests, don't forget to use
set FNCASE=y before unpacking the archive.
Create a ``symlink'' or copy your bash.exe to sh.exe in your ($DJDIR)/bin directory.
[If you have the recommended version of bash for DJGPP , this is already done for you.?
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.
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 or forget to issue ``set FNCASE=y'' first).
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 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
after you made your modifications.
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).
For building and installing non-XS modules, all you need is a working perl under DJGPP . Non-XS modules do not require re-linking the perl binary, and so are simpler to build and install.
XS-type modules do require re-linking the perl binary, because part of an XS module is written in ``C, and has to be linked together with the perl binary to be executed. This is required because perl under DJGPP is built with the ``static link option, due to the lack of ``dynamic linking'' in the DJGPP environment.
Because XS modules require re-linking of the perl binary, you need both the perl binary distribution and the perl source distribution to build an XS extension module. In addition, you will have to have built your perl binary from the source distribution so that all of the components of the perl binary are available for the required link step.
Unpacking CPAN Modules
First, download the module package from CPAN (e.g., the ``Comma Separated Value'' text package, Text-CSV-0.01.tar.gz). Then expand the contents of the package into some location on your disk. Most CPAN modules are built with an internal directory structure, so it is usually safe to expand it in the root of your DJGPP installation. Some people prefer to locate source trees under /usr/src (i.e., ($DJDIR)/usr/src), but you may put it wherever seems most logical to you, EXCEPT under the same directory as your perl source code. There are special rules that apply to modules which live in the perl source tree that do not apply to most of the modules in CPAN .
Unlike other DJGPP packages, which are normal ``zip files, most CPAN module packages are ``gzipped tarballs. Recent versions of !WinZip? will safely unpack and expand them, UNLESS they have zero-length files. It is a known !WinZip? bug (as of v7.0) that it will not extract zero-length files.
This will create the new directory ($DJDIR)/Text-CSV-0.01, filling it with the source for this module.
Building Non-XS Modules
To build a non-XS module, you can use the standard module-building instructions distributed with perl modules.
make make test make install This is sufficient because non-XS modules install only ``.pm'' files and (sometimes) pod and/or man documentation. No re-linking of the perl binary is needed to build, install or use non-XS modules.
Building XS Modules
To build an XS module, you must use the standard module-building instructions distributed with perl modules PLUS three extra instructions specific to the DJGPP ``static link'' build environment.
perl Makefile.PL make make perl make test make -f Makefile.aperl inst_perl MAP_TARGET=perl.exe make install The first extra instruction sets DJGPP 's FNCASE environment variable so that the new perl binary which you must build for an XS-type module will build correctly. The second extra instruction re-builds the perl binary in your module directory before you run ``make test, so that you are testing with the new module code you built with ``make. The third extra instruction installs the perl binary from your module directory into the standard DJGPP binary directory, ($DJDIR)/bin, replacing your previous perl binary.
Note that the MAP_TARGET value must have the ``.exe extension or you will not create a ``perl.exe to replace the one in ($DJDIR)/bin.
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