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b1be52e8 LM |
1 | If you read this file _as_is_, just ignore the funny characters you |
2 | see. It is written in the POD format (see perlpod manpage) which is | |
3 | specially designed to be readable as is. | |
39e571d4 | 4 | |
b1be52e8 | 5 | =head1 NAME |
39e571d4 | 6 | |
b1be52e8 | 7 | perldos - Perl under DOS, W31, W95. |
0498d68d | 8 | |
b1be52e8 | 9 | =head1 SYNOPSIS |
39e571d4 | 10 | |
b1be52e8 LM |
11 | These are instructions for building Perl under DOS (or w??), using |
12 | DJGPP v2.01 or later. Under w95 long filenames are supported. | |
39e571d4 | 13 | |
b1be52e8 | 14 | =head1 DESCRIPTION |
39e571d4 | 15 | |
b1be52e8 LM |
16 | Before you start, you should glance through the README file |
17 | found in the top-level directory where the Perl distribution | |
18 | was extracted. Make sure you read and understand the terms under | |
19 | which this software is being distributed. | |
39e571d4 | 20 | |
b1be52e8 LM |
21 | This port currently supports MakeMaker (the set of modules that |
22 | is used to build extensions to perl). Therefore, you should be | |
23 | able to build and install most extensions found in the CPAN sites. | |
39e571d4 | 24 | |
b1be52e8 | 25 | =head2 Prerequisites |
39e571d4 | 26 | |
b1be52e8 | 27 | =over 4 |
39e571d4 | 28 | |
b1be52e8 | 29 | =item DJGPP |
39e571d4 | 30 | |
b1be52e8 LM |
31 | DJGPP is a port of GNU C/C++ compiler and development tools to 32-bit, |
32 | protected-mode environment on Intel 32-bit CPUs running MS-DOS and compatible | |
33 | operating systems, by DJ Delorie <dj@delorie.com> and friends. | |
39e571d4 | 34 | |
b1be52e8 | 35 | For more details (FAQ), check out the home of DJGPP at: |
39e571d4 | 36 | |
b1be52e8 | 37 | http://www.delorie.com/djgpp/ |
39e571d4 | 38 | |
b1be52e8 LM |
39 | If you have questions about DJGPP, try posting to the DJGPP newsgroup: |
40 | comp.os.msdos.djgpp, or use the email gateway djgpp@delorie.com. | |
39e571d4 | 41 | |
b1be52e8 LM |
42 | You can find the full DJGPP distribution on any SimTel.Net mirror all over |
43 | the world. Like: | |
39e571d4 | 44 | |
b1be52e8 | 45 | ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2* |
39e571d4 | 46 | |
b1be52e8 | 47 | You need the following files to build perl (or add new modules): |
39e571d4 | 48 | |
706de38c | 49 | v2/djdev202.zip |
b1be52e8 LM |
50 | v2/bnu27b.zip |
51 | v2gnu/gcc2721b.zip | |
52 | v2gnu/bsh1147b.zip | |
53 | v2gnu/mak3761b.zip | |
54 | v2gnu/fil316b.zip | |
55 | v2gnu/sed118b.zip | |
56 | v2gnu/txt122b.zip | |
57 | v2gnu/dif271b.zip | |
58 | v2gnu/grep21b.zip | |
59 | v2gnu/shl112b.zip | |
60 | v2gnu/gawk303b.zip | |
61 | v2misc/csdpmi4b.zip | |
39e571d4 | 62 | |
706de38c | 63 | or possibly any newer version. |
39e571d4 | 64 | |
b1be52e8 | 65 | =item Pthreads |
39e571d4 | 66 | |
706de38c | 67 | Thread support is not tested in this version of the djgpp perl. |
39e571d4 | 68 | |
b1be52e8 | 69 | =back |
39e571d4 | 70 | |
b1be52e8 | 71 | =head2 Shortcomings of Perl under DOS |
39e571d4 | 72 | |
b1be52e8 LM |
73 | Perl under DOS lacks some features of perl under UNIX because of |
74 | deficiencies in the UNIX-emulation, most notably: | |
39e571d4 | 75 | |
b1be52e8 | 76 | =over 4 |
39e571d4 | 77 | |
b1be52e8 | 78 | =item * |
39e571d4 | 79 | |
b1be52e8 | 80 | fork() and pipe() |
39e571d4 | 81 | |
b1be52e8 | 82 | =item * |
39e571d4 | 83 | |
b1be52e8 | 84 | some features of the UNIX filesystem regarding link count and file dates |
39e571d4 | 85 | |
b1be52e8 | 86 | =item * |
39e571d4 | 87 | |
b1be52e8 | 88 | in-place operation is a little bit broken with short filenames |
39e571d4 | 89 | |
b1be52e8 | 90 | =item * |
39e571d4 | 91 | |
b1be52e8 | 92 | sockets |
39e571d4 | 93 | |
b1be52e8 | 94 | =back |
39e571d4 | 95 | |
b1be52e8 | 96 | =head2 Building |
39e571d4 | 97 | |
b1be52e8 | 98 | =over 4 |
39e571d4 | 99 | |
b1be52e8 | 100 | =item * |
39e571d4 | 101 | |
706de38c | 102 | Unpack the source package F<perl5.6*.tar.gz> with djtarx. If you want |
b1be52e8 | 103 | to use long file names under w95, don't forget to use |
39e571d4 | 104 | |
b1be52e8 | 105 | set LFN=y |
0498d68d | 106 | |
b1be52e8 | 107 | before unpacking the archive. |
39e571d4 | 108 | |
b1be52e8 | 109 | =item * |
39e571d4 | 110 | |
b1be52e8 LM |
111 | Create a "symlink" or copy your bash.exe to sh.exe in your C<($DJDIR)/bin> |
112 | directory. | |
39e571d4 | 113 | |
b1be52e8 | 114 | ln -s bash.exe sh.exe |
39e571d4 | 115 | |
b1be52e8 | 116 | And make the C<SHELL> environment variable point to this F<sh.exe>: |
39e571d4 | 117 | |
b1be52e8 | 118 | set SHELL=c:/djgpp/bin/sh.exe (use full path name!) |
39e571d4 | 119 | |
b1be52e8 LM |
120 | You can do this in F<djgpp.env> too. Add this line BEFORE any section |
121 | definition: | |
39e571d4 | 122 | |
b1be52e8 | 123 | +SHELL=%DJDIR%/bin/sh.exe |
39e571d4 | 124 | |
b1be52e8 | 125 | =item * |
39e571d4 | 126 | |
b1be52e8 LM |
127 | If you have F<split.exe> and F<gsplit.exe> in your path, then rename |
128 | F<split.exe> to F<djsplit.exe>, and F<gsplit.exe> to F<split.exe>. | |
129 | Copy or link F<gecho.exe> to F<echo.exe> if you don't have F<echo.exe>. | |
130 | Copy or link F<gawk.exe> to F<awk.exe> if you don't have F<awk.exe>. | |
39e571d4 | 131 | |
b1be52e8 | 132 | =item * |
39e571d4 | 133 | |
b1be52e8 LM |
134 | Chdir to the djgpp subdirectory of perl toplevel and type the following |
135 | command: | |
39e571d4 | 136 | |
b1be52e8 LM |
137 | configure.bat |
138 | ||
139 | This will do some preprocessing then run the Configure script for you. | |
140 | The Configure script is interactive, but in most cases you | |
141 | just need to press ENTER. | |
142 | ||
143 | If the script says that your package is incomplete, and asks whether | |
144 | to continue, just answer with Y (this can only happen if you don't use | |
145 | long filenames). | |
146 | ||
147 | When Configure asks about the extensions, I suggest IO and Fcntl, | |
148 | and if you want database handling then SDBM_File or GDBM_File | |
149 | (you need to install gdbm for this one). If you want to use the | |
150 | POSIX extension (this is the default), make sure that the stack | |
151 | size of your F<cc1.exe> is at least 512kbyte (you can check this | |
152 | with: C<stubedit cc1.exe>). | |
153 | ||
154 | You can use the Configure script in non-interactive mode too. | |
155 | When I built my F<perl.exe>, I used something like this: | |
156 | ||
706de38c | 157 | configure.bat -des |
b1be52e8 LM |
158 | |
159 | You can find more info about Configure's command line switches in | |
160 | the F<INSTALL> file. | |
161 | ||
162 | When the script ends, and you want to change some values in the | |
163 | generated F<config.sh> file, then run | |
164 | ||
165 | sh Configure -S | |
166 | ||
167 | after you made your modifications. | |
168 | ||
169 | IMPORTANT: if you use this C<-S> switch, be sure to delete the CONFIG | |
170 | environment variable before running the script: | |
171 | ||
172 | set CONFIG= | |
173 | ||
174 | =item * | |
175 | ||
176 | Now you can compile Perl. Type: | |
177 | ||
178 | make | |
179 | ||
180 | =back | |
181 | ||
182 | =head2 Testing | |
183 | ||
184 | Type: | |
185 | ||
186 | make test | |
187 | ||
706de38c GS |
188 | If you're lucky you should see "All tests successful". But there can be |
189 | a few failed subtests (less than 5 hopefully) depending on some external | |
190 | conditions (e.g. some subtests fail under linux/dosemu or plain dos | |
191 | with short filenames only). | |
b1be52e8 LM |
192 | |
193 | =head2 Installation | |
194 | ||
195 | Type: | |
196 | ||
197 | make install | |
198 | ||
199 | This will copy the newly compiled perl and libraries into your DJGPP | |
200 | directory structure. Perl.exe and the utilities go into C<($DJDIR)/bin>, | |
201 | and the library goes under C<($DJDIR)/lib/perl5>. The pod documentation | |
202 | goes under C<($DJDIR)/lib/perl5/pod>. | |
203 | ||
b1be52e8 LM |
204 | =head1 AUTHOR |
205 | ||
933fea7f | 206 | Laszlo Molnar, F<laszlo.molnar@eth.ericsson.se> |
b1be52e8 LM |
207 | |
208 | =head1 SEE ALSO | |
209 | ||
210 | perl(1). | |
211 | ||
212 | =cut | |
39e571d4 | 213 |