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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 LM |
7 | perldos - Perl under DOS, W31, W95. |
8 | ||
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 | |
b1be52e8 LM |
49 | v2/djdev201.zip |
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 | |
b1be52e8 | 63 | or any newer version. |
39e571d4 | 64 | |
b1be52e8 | 65 | =item Pthreads |
39e571d4 | 66 | |
b1be52e8 LM |
67 | If you want multithreading support in perl, you need a pthread library |
68 | that supports DJGPP. One of them can be found at: | |
39e571d4 | 69 | |
b1be52e8 | 70 | ftp://ftp.cs.fsu.edu/pub/PART/PTHREADS/pthreads.zip |
39e571d4 | 71 | |
b1be52e8 LM |
72 | But thread support is still in alpha, it may be unstable. For more information |
73 | see below. | |
39e571d4 | 74 | |
b1be52e8 | 75 | =back |
39e571d4 | 76 | |
b1be52e8 | 77 | =head2 Shortcomings of Perl under DOS |
39e571d4 | 78 | |
b1be52e8 LM |
79 | Perl under DOS lacks some features of perl under UNIX because of |
80 | deficiencies in the UNIX-emulation, most notably: | |
39e571d4 | 81 | |
b1be52e8 | 82 | =over 4 |
39e571d4 | 83 | |
b1be52e8 | 84 | =item * |
39e571d4 | 85 | |
b1be52e8 | 86 | fork() and pipe() |
39e571d4 | 87 | |
b1be52e8 | 88 | =item * |
39e571d4 | 89 | |
b1be52e8 | 90 | some features of the UNIX filesystem regarding link count and file dates |
39e571d4 | 91 | |
b1be52e8 | 92 | =item * |
39e571d4 | 93 | |
b1be52e8 | 94 | in-place operation is a little bit broken with short filenames |
39e571d4 | 95 | |
b1be52e8 | 96 | =item * |
39e571d4 | 97 | |
b1be52e8 | 98 | sockets |
39e571d4 | 99 | |
b1be52e8 | 100 | =back |
39e571d4 | 101 | |
b1be52e8 | 102 | =head2 Building |
39e571d4 | 103 | |
b1be52e8 | 104 | =over 4 |
39e571d4 | 105 | |
b1be52e8 | 106 | =item * |
39e571d4 | 107 | |
b1be52e8 LM |
108 | Unpack the source package F<perl5.00?_??.tar.gz> with djtarx. If you want |
109 | to use long file names under w95, don't forget to use | |
39e571d4 | 110 | |
b1be52e8 LM |
111 | set LFN=y |
112 | ||
113 | before unpacking the archive. | |
39e571d4 | 114 | |
b1be52e8 | 115 | =item * |
39e571d4 | 116 | |
b1be52e8 LM |
117 | Create a "symlink" or copy your bash.exe to sh.exe in your C<($DJDIR)/bin> |
118 | directory. | |
39e571d4 | 119 | |
b1be52e8 | 120 | ln -s bash.exe sh.exe |
39e571d4 | 121 | |
b1be52e8 | 122 | And make the C<SHELL> environment variable point to this F<sh.exe>: |
39e571d4 | 123 | |
b1be52e8 | 124 | set SHELL=c:/djgpp/bin/sh.exe (use full path name!) |
39e571d4 | 125 | |
b1be52e8 LM |
126 | You can do this in F<djgpp.env> too. Add this line BEFORE any section |
127 | definition: | |
39e571d4 | 128 | |
b1be52e8 | 129 | +SHELL=%DJDIR%/bin/sh.exe |
39e571d4 | 130 | |
b1be52e8 | 131 | =item * |
39e571d4 | 132 | |
b1be52e8 LM |
133 | If you have F<split.exe> and F<gsplit.exe> in your path, then rename |
134 | F<split.exe> to F<djsplit.exe>, and F<gsplit.exe> to F<split.exe>. | |
135 | Copy or link F<gecho.exe> to F<echo.exe> if you don't have F<echo.exe>. | |
136 | Copy or link F<gawk.exe> to F<awk.exe> if you don't have F<awk.exe>. | |
39e571d4 | 137 | |
b1be52e8 | 138 | =item * |
39e571d4 | 139 | |
b1be52e8 LM |
140 | Chdir to the djgpp subdirectory of perl toplevel and type the following |
141 | command: | |
39e571d4 | 142 | |
b1be52e8 LM |
143 | configure.bat |
144 | ||
145 | This will do some preprocessing then run the Configure script for you. | |
146 | The Configure script is interactive, but in most cases you | |
147 | just need to press ENTER. | |
148 | ||
149 | If the script says that your package is incomplete, and asks whether | |
150 | to continue, just answer with Y (this can only happen if you don't use | |
151 | long filenames). | |
152 | ||
153 | When Configure asks about the extensions, I suggest IO and Fcntl, | |
154 | and if you want database handling then SDBM_File or GDBM_File | |
155 | (you need to install gdbm for this one). If you want to use the | |
156 | POSIX extension (this is the default), make sure that the stack | |
157 | size of your F<cc1.exe> is at least 512kbyte (you can check this | |
158 | with: C<stubedit cc1.exe>). | |
159 | ||
160 | You can use the Configure script in non-interactive mode too. | |
161 | When I built my F<perl.exe>, I used something like this: | |
162 | ||
163 | configure.bat -Uuseposix -des | |
164 | ||
165 | You can find more info about Configure's command line switches in | |
166 | the F<INSTALL> file. | |
167 | ||
168 | When the script ends, and you want to change some values in the | |
169 | generated F<config.sh> file, then run | |
170 | ||
171 | sh Configure -S | |
172 | ||
173 | after you made your modifications. | |
174 | ||
175 | IMPORTANT: if you use this C<-S> switch, be sure to delete the CONFIG | |
176 | environment variable before running the script: | |
177 | ||
178 | set CONFIG= | |
179 | ||
180 | =item * | |
181 | ||
182 | Now you can compile Perl. Type: | |
183 | ||
184 | make | |
185 | ||
186 | =back | |
187 | ||
188 | =head2 Testing | |
189 | ||
190 | Type: | |
191 | ||
192 | make test | |
193 | ||
194 | You should see "All tests successful" if you configured a database | |
195 | manager, and 1 failed test script if not (F<lib/anydbm.t>). If you | |
196 | configured POSIX you will see 1 additional failed subtest in F<lib/posix.t>. | |
197 | ||
198 | =head2 Installation | |
199 | ||
200 | Type: | |
201 | ||
202 | make install | |
203 | ||
204 | This will copy the newly compiled perl and libraries into your DJGPP | |
205 | directory structure. Perl.exe and the utilities go into C<($DJDIR)/bin>, | |
206 | and the library goes under C<($DJDIR)/lib/perl5>. The pod documentation | |
207 | goes under C<($DJDIR)/lib/perl5/pod>. | |
208 | ||
209 | =head2 Threaded perl under dos-djgpp | |
210 | ||
211 | Multithreading support is considered alpha, because some of the | |
212 | tests in C<ext/Thread> still die with SIGSEGV (patches are welcome). But | |
213 | if you want to give it a try, here are the necessary steps: | |
214 | ||
215 | =over 4 | |
216 | ||
217 | =item | |
218 | ||
219 | 1. You will need a pthread library which supports djgpp. Go, and download | |
220 | FSU's version from: | |
221 | ||
222 | ftp://ftp.cs.fsu.edu/pub/PART/PTHREADS/pthreads.zip | |
223 | ||
224 | The latest version is 3.5, released in Feb 98. | |
225 | ||
226 | =item | |
227 | ||
228 | 2. Unzip the file, cd to C<threads\src> and run F<configur.bat>. | |
229 | ||
230 | =item | |
231 | ||
232 | 3. Add C<RAND_SWITCH> or C<MUTEX_SWITCH> or C<RR_SWITCH> to C<CFLAGS> | |
233 | in the F<makefile>. Note that using these values, multithreading will | |
234 | NOT be preemptive. This is necessary, since djgpp's libc is not thread safe. | |
235 | ||
236 | =item | |
237 | ||
238 | 4. Apply the following patch: | |
239 | ||
240 | *** include/pthread/signal.h~ Wed Feb 4 10:51:24 1998 | |
241 | --- include/pthread/signal.h Tue Feb 10 22:40:32 1998 | |
242 | *************** | |
243 | *** 364,368 **** | |
244 | --- 364,370 ---- | |
245 | ||
246 | #ifndef SA_ONSTACK | |
247 | + #ifdef SV_ONSTACK | |
248 | #define SA_ONSTACK SV_ONSTACK | |
249 | + #endif | |
250 | #endif /* !SA_ONSTACK */ | |
251 | ||
252 | =item | |
253 | ||
254 | 5. run make (before you do this, you must make sure your C<SHELL> environment | |
255 | variable does NOT point to bash). | |
256 | ||
257 | =item | |
258 | ||
259 | 6. Install the library and header files into your djgpp directory structure. | |
260 | ||
261 | =item | |
262 | ||
263 | 7. Add C<-Dusethreads> to the commmand line of perl's F<configure.bat>. | |
264 | ||
265 | =back | |
266 | ||
267 | =head1 AUTHOR | |
268 | ||
269 | Laszlo Molnar, F<molnarl@cdata.tvnet.hu> | |
270 | ||
271 | =head1 SEE ALSO | |
272 | ||
273 | perl(1). | |
274 | ||
275 | =cut | |
39e571d4 | 276 |