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1 | If you read this file _as_is_, just ignore the funny characters you\r |
2 | see. It is written in the POD format (see pod/perlpod.pod) which is\r | |
3 | specially designed to be readable as is.\r | |
4 | \r | |
5 | =head1 NAME\r | |
6 | \r | |
7 | perlwin32 - Perl under Win32\r | |
8 | \r | |
9 | =head1 SYNOPSIS\r | |
10 | \r | |
11 | These are instructions for building Perl under Windows (9x, NT and\r | |
12 | 2000).\r | |
13 | \r | |
14 | =head1 DESCRIPTION\r | |
15 | \r | |
16 | Before you start, you should glance through the README file\r | |
17 | found in the top-level directory to which the Perl distribution\r | |
18 | was extracted. Make sure you read and understand the terms under\r | |
19 | which this software is being distributed.\r | |
20 | \r | |
21 | Also make sure you read L<BUGS AND CAVEATS> below for the\r | |
22 | known limitations of this port.\r | |
23 | \r | |
24 | The INSTALL file in the perl top-level has much information that is\r | |
25 | only relevant to people building Perl on Unix-like systems. In\r | |
26 | particular, you can safely ignore any information that talks about\r | |
27 | "Configure".\r | |
28 | \r | |
29 | You may also want to look at two other options for building\r | |
30 | a perl that will work on Windows NT: the README.cygwin and\r | |
31 | README.os2 files, each of which give a different set of rules to\r | |
32 | build a Perl that will work on Win32 platforms. Those two methods\r | |
33 | will probably enable you to build a more Unix-compatible perl, but\r | |
34 | you will also need to download and use various other build-time and\r | |
35 | run-time support software described in those files.\r | |
36 | \r | |
37 | This set of instructions is meant to describe a so-called "native"\r | |
38 | port of Perl to Win32 platforms. The resulting Perl requires no\r | |
39 | additional software to run (other than what came with your operating\r | |
40 | system). Currently, this port is capable of using one of the\r | |
41 | following compilers:\r | |
42 | \r | |
43 | Borland C++ version 5.02 or later\r | |
44 | Microsoft Visual C++ version 4.2 or later\r | |
45 | Mingw32 with GCC version 2.95.2 or better\r | |
46 | \r | |
47 | The last of these is a high quality freeware compiler. Support\r | |
48 | for it is still experimental. (Older versions of GCC are known\r | |
49 | not to work.)\r | |
50 | \r | |
51 | This port currently supports MakeMaker (the set of modules that\r | |
52 | is used to build extensions to perl). Therefore, you should be\r | |
53 | able to build and install most extensions found in the CPAN sites.\r | |
54 | See L<Usage Hints for Perl on Win32> below for general hints about this.\r | |
55 | \r | |
56 | =head2 Setting Up Perl on Win32\r | |
57 | \r | |
58 | =over 4\r | |
59 | \r | |
60 | =item Make\r | |
61 | \r | |
62 | You need a "make" program to build the sources. If you are using\r | |
63 | Visual C++ under Windows NT or 2000, nmake will work. All other\r | |
64 | builds need dmake.\r | |
65 | \r | |
66 | dmake is a freely available make that has very nice macro features\r | |
67 | and parallelability.\r | |
68 | \r | |
69 | A port of dmake for Windows is available from:\r | |
70 | \r | |
71 | http://www.cpan.org/authors/id/GSAR/dmake-4.1pl1-win32.zip\r | |
72 | \r | |
73 | (This is a fixed version of the original dmake sources obtained from\r | |
74 | http://www.wticorp.com/dmake/. As of version 4.1PL1, the original\r | |
75 | sources did not build as shipped and had various other problems.\r | |
76 | A patch is included in the above fixed version.)\r | |
77 | \r | |
78 | Fetch and install dmake somewhere on your path (follow the instructions\r | |
79 | in the README.NOW file).\r | |
80 | \r | |
81 | There exists a minor coexistence problem with dmake and Borland C++\r | |
82 | compilers. Namely, if a distribution has C files named with mixed\r | |
83 | case letters, they will be compiled into appropriate .obj-files named\r | |
84 | with all lowercase letters, and every time dmake is invoked\r | |
85 | to bring files up to date, it will try to recompile such files again.\r | |
86 | For example, Tk distribution has a lot of such files, resulting in\r | |
87 | needless recompiles everytime dmake is invoked. To avoid this, you\r | |
02b1e604 | 88 | may use the script "sync_ext.pl" after a successful build. It is\r |
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89 | available in the win32 subdirectory of the Perl source distribution.\r |
90 | \r | |
91 | =item Command Shell\r | |
92 | \r | |
93 | Use the default "cmd" shell that comes with NT. Some versions of the\r | |
94 | popular 4DOS/NT shell have incompatibilities that may cause you trouble.\r | |
95 | If the build fails under that shell, try building again with the cmd\r | |
96 | shell.\r | |
97 | \r | |
98 | The nmake Makefile also has known incompatibilities with the\r | |
99 | "command.com" shell that comes with Windows 9x. You will need to\r | |
100 | use dmake and makefile.mk to build under Windows 9x.\r | |
101 | \r | |
102 | The surest way to build it is on Windows NT, using the cmd shell.\r | |
103 | \r | |
104 | Make sure the path to the build directory does not contain spaces. The\r | |
105 | build usually works in this circumstance, but some tests will fail.\r | |
106 | \r | |
107 | =item Borland C++\r | |
108 | \r | |
109 | If you are using the Borland compiler, you will need dmake.\r | |
110 | (The make that Borland supplies is seriously crippled and will not\r | |
111 | work for MakeMaker builds.)\r | |
112 | \r | |
113 | See L</"Make"> above.\r | |
114 | \r | |
115 | =item Microsoft Visual C++\r | |
116 | \r | |
117 | The nmake that comes with Visual C++ will suffice for building.\r | |
118 | You will need to run the VCVARS32.BAT file, usually found somewhere\r | |
119 | like C:\MSDEV4.2\BIN. This will set your build environment.\r | |
120 | \r | |
121 | You can also use dmake to build using Visual C++; provided, however,\r | |
122 | you set OSRELEASE to "microsft" (or whatever the directory name\r | |
123 | under which the Visual C dmake configuration lives) in your environment\r | |
124 | and edit win32/config.vc to change "make=nmake" into "make=dmake". The\r | |
125 | latter step is only essential if you want to use dmake as your default\r | |
126 | make for building extensions using MakeMaker.\r | |
127 | \r | |
128 | =item Mingw32 with GCC\r | |
129 | \r | |
130 | GCC-2.95.2 binaries can be downloaded from:\r | |
131 | \r | |
132 | ftp://ftp.xraylith.wisc.edu/pub/khan/gnu-win32/mingw32/\r | |
133 | \r | |
134 | You also need dmake. See L</"Make"> above on how to get it.\r | |
135 | \r | |
136 | The GCC-2.95.2 bundle comes with Mingw32 libraries and headers.\r | |
137 | \r | |
138 | Make sure you install the binaries that work with MSVCRT.DLL as indicated\r | |
139 | in the README for the GCC bundle. You may need to set up a few environment\r | |
140 | variables (usually ran from a batch file).\r | |
141 | \r | |
142 | There are a couple of problems with the version of gcc-2.95.2-msvcrt.exe\r | |
143 | released 7 November 1999:\r | |
144 | \r | |
145 | =over\r | |
146 | \r | |
147 | =item *\r | |
148 | \r | |
149 | It left out a fix for certain command line quotes. To fix this, be sure\r | |
150 | to download and install the file fixes/quote-fix-msvcrt.exe from the above\r | |
151 | ftp location.\r | |
152 | \r | |
153 | =item *\r | |
154 | \r | |
155 | The definition of the fpos_t type in stdio.h may be wrong. If your\r | |
156 | stdio.h has this problem, you will see an exception when running the\r | |
157 | test t/lib/io_xs.t. To fix this, change the typedef for fpos_t from\r | |
158 | "long" to "long long" in the file i386-mingw32msvc/include/stdio.h,\r | |
159 | and rebuild.\r | |
160 | \r | |
161 | =back\r | |
162 | \r | |
163 | A potentially simpler to install (but probably soon-to-be-outdated) bundle\r | |
164 | of the above package with the mentioned fixes already applied is available\r | |
165 | here:\r | |
166 | \r | |
167 | http://downloads.ActiveState.com/pub/staff/gsar/gcc-2.95.2-msvcrt.zip\r | |
168 | ftp://ftp.ActiveState.com/pub/staff/gsar/gcc-2.95.2-msvcrt.zip\r | |
169 | \r | |
170 | =back\r | |
171 | \r | |
172 | =head2 Building\r | |
173 | \r | |
174 | =over 4\r | |
175 | \r | |
176 | =item *\r | |
177 | \r | |
178 | Make sure you are in the "win32" subdirectory under the perl toplevel.\r | |
179 | This directory contains a "Makefile" that will work with\r | |
180 | versions of nmake that come with Visual C++, and a dmake "makefile.mk"\r | |
181 | that will work for all supported compilers. The defaults in the dmake\r | |
182 | makefile are setup to build using the GCC compiler.\r | |
183 | \r | |
184 | =item *\r | |
185 | \r | |
186 | Edit the makefile.mk (or Makefile, if you're using nmake) and change \r | |
187 | the values of INST_DRV and INST_TOP. You can also enable various\r | |
188 | build flags. These are explained in the makefiles.\r | |
189 | \r | |
190 | You will have to make sure that CCTYPE is set correctly and that \r | |
191 | CCHOME points to wherever you installed your compiler.\r | |
192 | \r | |
193 | The default value for CCHOME in the makefiles for Visual C++\r | |
194 | may not be correct for some versions. Make sure the default exists\r | |
195 | and is valid.\r | |
196 | \r | |
197 | If you have either the source or a library that contains des_fcrypt(),\r | |
198 | enable the appropriate option in the makefile. des_fcrypt() is not\r | |
199 | bundled with the distribution due to US Government restrictions\r | |
200 | on the export of cryptographic software. Nevertheless, this routine\r | |
201 | is part of the "libdes" library (written by Eric Young) which is widely\r | |
202 | available worldwide, usually along with SSLeay (for example, \r | |
9bf52275 | 203 | "ftp://ftp.funet.fi/pub/crypt/mirrors/dsi/libdes/"). Set CRYPT_SRC to the\r |
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204 | name of the file that implements des_fcrypt(). Alternatively, if\r |
205 | you have built a library that contains des_fcrypt(), you can set\r | |
206 | CRYPT_LIB to point to the library name. The location above contains\r | |
207 | many versions of the "libdes" library, all with slightly different\r | |
208 | implementations of des_fcrypt(). Older versions have a single,\r | |
209 | self-contained file (fcrypt.c) that implements crypt(), so they may be\r | |
210 | easier to use. A patch against the fcrypt.c found in libdes-3.06 is\r | |
211 | in des_fcrypt.patch.\r | |
212 | \r | |
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213 | An easier alternative may be to get the pre-patched and ready-to-use\r |
214 | fcrypt.c that can be found here:\r | |
215 | \r | |
216 | http://downloads.ActiveState.com/pub/staff/gsar/fcrypt.c\r | |
217 | ftp://ftp.ActiveState.com/pub/staff/gsar/fcrypt.c\r | |
218 | \r | |
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219 | Perl will also build without des_fcrypt(), but the crypt() builtin will\r |
220 | fail at run time.\r | |
221 | \r | |
222 | Be sure to read the instructions near the top of the makefiles carefully.\r | |
223 | \r | |
224 | =item *\r | |
225 | \r | |
226 | Type "dmake" (or "nmake" if you are using that make).\r | |
227 | \r | |
228 | This should build everything. Specifically, it will create perl.exe,\r | |
229 | perl56.dll at the perl toplevel, and various other extension dll's\r | |
230 | under the lib\auto directory. If the build fails for any reason, make\r | |
231 | sure you have done the previous steps correctly.\r | |
232 | \r | |
233 | =back\r | |
234 | \r | |
235 | =head2 Testing Perl on Win32\r | |
236 | \r | |
237 | Type "dmake test" (or "nmake test"). This will run most of the tests from\r | |
238 | the testsuite (many tests will be skipped).\r | |
239 | \r | |
240 | There should be no test failures when running under Windows NT 4.0 or\r | |
241 | Windows 2000. Many tests I<will> fail under Windows 9x due to the inferior\r | |
242 | command shell.\r | |
243 | \r | |
244 | Some test failures may occur if you use a command shell other than the\r | |
245 | native "cmd.exe", or if you are building from a path that contains\r | |
246 | spaces. So don't do that.\r | |
247 | \r | |
248 | If you are running the tests from a emacs shell window, you may see\r | |
249 | failures in op/stat.t. Run "dmake test-notty" in that case.\r | |
250 | \r | |
251 | If you're using the Borland compiler, you may see a failure in op/taint.t\r | |
252 | arising from the inability to find the Borland Runtime DLLs on the system\r | |
253 | default path. You will need to copy the DLLs reported by the messages\r | |
254 | from where Borland chose to install it, into the Windows system directory\r | |
255 | (usually somewhere like C:\WINNT\SYSTEM32) and rerun the test.\r | |
256 | \r | |
257 | If you're using Borland compiler versions 5.2 and below, you may run into\r | |
258 | problems finding the correct header files when building extensions. For\r | |
259 | example, building the "Tk" extension may fail because both perl and Tk\r | |
260 | contain a header file called "patchlevel.h". The latest Borland compiler\r | |
261 | (v5.5) is free of this misbehaviour, and it even supports an\r | |
262 | option -VI- for backward (bugward) compatibility for using the old Borland\r | |
263 | search algorithm to locate header files.\r | |
264 | \r | |
265 | Please report any other failures as described under L<BUGS AND CAVEATS>.\r | |
266 | \r | |
267 | =head2 Installation of Perl on Win32\r | |
268 | \r | |
269 | Type "dmake install" (or "nmake install"). This will put the newly\r | |
270 | built perl and the libraries under whatever C<INST_TOP> points to in the\r | |
271 | Makefile. It will also install the pod documentation under\r | |
272 | C<$INST_TOP\$VERSION\lib\pod> and HTML versions of the same under\r | |
273 | C<$INST_TOP\$VERSION\lib\pod\html>. To use the Perl you just installed,\r | |
274 | you will need to add two components to your PATH environment variable,\r | |
275 | C<$INST_TOP\$VERSION\bin> and C<$INST_TOP\$VERSION\bin\$ARCHNAME>.\r | |
276 | For example:\r | |
277 | \r | |
278 | set PATH c:\perl\5.6.0\bin;c:\perl\5.6.0\bin\MSWin32-x86;%PATH%\r | |
279 | \r | |
280 | If you opt to comment out INST_VER and INST_ARCH in the makefiles, the\r | |
281 | installation structure is much simpler. In that case, it will be\r | |
282 | sufficient to add a single entry to the path, for instance:\r | |
283 | \r | |
284 | set PATH c:\perl\bin;%PATH%\r | |
285 | \r | |
286 | =head2 Usage Hints for Perl on Win32\r | |
287 | \r | |
288 | =over 4\r | |
289 | \r | |
290 | =item Environment Variables\r | |
291 | \r | |
292 | The installation paths that you set during the build get compiled\r | |
293 | into perl, so you don't have to do anything additional to start\r | |
294 | using that perl (except add its location to your PATH variable).\r | |
295 | \r | |
296 | If you put extensions in unusual places, you can set PERL5LIB\r | |
297 | to a list of paths separated by semicolons where you want perl\r | |
298 | to look for libraries. Look for descriptions of other environment\r | |
299 | variables you can set in L<perlrun>.\r | |
300 | \r | |
301 | You can also control the shell that perl uses to run system() and\r | |
302 | backtick commands via PERL5SHELL. See L<perlrun>.\r | |
303 | \r | |
304 | Perl does not depend on the registry, but it can look up certain default\r | |
305 | values if you choose to put them there. Perl attempts to read entries from\r | |
306 | C<HKEY_CURRENT_USER\Software\Perl> and C<HKEY_LOCAL_MACHINE\Software\Perl>.\r | |
307 | Entries in the former override entries in the latter. One or more of the\r | |
308 | following entries (of type REG_SZ or REG_EXPAND_SZ) may be set:\r | |
309 | \r | |
310 | lib-$] version-specific standard library path to add to @INC\r | |
311 | lib standard library path to add to @INC\r | |
312 | sitelib-$] version-specific site library path to add to @INC\r | |
313 | sitelib site library path to add to @INC\r | |
314 | vendorlib-$] version-specific vendor library path to add to @INC\r | |
315 | vendorlib vendor library path to add to @INC\r | |
316 | PERL* fallback for all %ENV lookups that begin with "PERL"\r | |
317 | \r | |
318 | Note the C<$]> in the above is not literal. Substitute whatever version\r | |
319 | of perl you want to honor that entry, e.g. C<5.6.0>. Paths must be\r | |
320 | separated with semicolons, as usual on win32.\r | |
321 | \r | |
322 | =item File Globbing\r | |
323 | \r | |
324 | By default, perl handles file globbing using the File::Glob extension,\r | |
325 | which provides portable globbing.\r | |
326 | \r | |
327 | If you want perl to use globbing that emulates the quirks of DOS\r | |
328 | filename conventions, you might want to consider using File::DosGlob\r | |
329 | to override the internal glob() implementation. See L<File::DosGlob> for\r | |
330 | details.\r | |
331 | \r | |
332 | =item Using perl from the command line\r | |
333 | \r | |
334 | If you are accustomed to using perl from various command-line\r | |
335 | shells found in UNIX environments, you will be less than pleased\r | |
336 | with what Windows offers by way of a command shell.\r | |
337 | \r | |
338 | The crucial thing to understand about the Windows environment is that\r | |
339 | the command line you type in is processed twice before Perl sees it.\r | |
340 | First, your command shell (usually CMD.EXE on Windows NT, and\r | |
341 | COMMAND.COM on Windows 9x) preprocesses the command line, to handle\r | |
342 | redirection, environment variable expansion, and location of the\r | |
343 | executable to run. Then, the perl executable splits the remaining\r | |
344 | command line into individual arguments, using the C runtime library\r | |
345 | upon which Perl was built.\r | |
346 | \r | |
347 | It is particularly important to note that neither the shell nor the C\r | |
348 | runtime do any wildcard expansions of command-line arguments (so\r | |
349 | wildcards need not be quoted). Also, the quoting behaviours of the\r | |
350 | shell and the C runtime are rudimentary at best (and may, if you are\r | |
351 | using a non-standard shell, be inconsistent). The only (useful) quote\r | |
352 | character is the double quote ("). It can be used to protect spaces\r | |
353 | and other special characters in arguments.\r | |
354 | \r | |
355 | The Windows NT documentation has almost no description of how the\r | |
356 | quoting rules are implemented, but here are some general observations\r | |
357 | based on experiments: The C runtime breaks arguments at spaces and\r | |
358 | passes them to programs in argc/argv. Double quotes can be used to\r | |
359 | prevent arguments with spaces in them from being split up. You can\r | |
360 | put a double quote in an argument by escaping it with a backslash and\r | |
361 | enclosing the whole argument within double quotes. The backslash and\r | |
362 | the pair of double quotes surrounding the argument will be stripped by\r | |
363 | the C runtime.\r | |
364 | \r | |
365 | The file redirection characters "<", ">", and "|" can be quoted by\r | |
366 | double quotes (although there are suggestions that this may not always\r | |
367 | be true). Single quotes are not treated as quotes by the shell or\r | |
368 | the C runtime, they don't get stripped by the shell (just to make\r | |
369 | this type of quoting completely useless). The caret "^" has also\r | |
370 | been observed to behave as a quoting character, but this appears\r | |
371 | to be a shell feature, and the caret is not stripped from the command\r | |
372 | line, so Perl still sees it (and the C runtime phase does not treat\r | |
373 | the caret as a quote character).\r | |
374 | \r | |
375 | Here are some examples of usage of the "cmd" shell:\r | |
376 | \r | |
377 | This prints two doublequotes:\r | |
378 | \r | |
379 | perl -e "print '\"\"' "\r | |
380 | \r | |
381 | This does the same:\r | |
382 | \r | |
383 | perl -e "print \"\\\"\\\"\" "\r | |
384 | \r | |
385 | This prints "bar" and writes "foo" to the file "blurch":\r | |
386 | \r | |
387 | perl -e "print 'foo'; print STDERR 'bar'" > blurch\r | |
388 | \r | |
389 | This prints "foo" ("bar" disappears into nowhereland):\r | |
390 | \r | |
391 | perl -e "print 'foo'; print STDERR 'bar'" 2> nul\r | |
392 | \r | |
393 | This prints "bar" and writes "foo" into the file "blurch":\r | |
394 | \r | |
395 | perl -e "print 'foo'; print STDERR 'bar'" 1> blurch\r | |
396 | \r | |
397 | This pipes "foo" to the "less" pager and prints "bar" on the console:\r | |
398 | \r | |
399 | perl -e "print 'foo'; print STDERR 'bar'" | less\r | |
400 | \r | |
401 | This pipes "foo\nbar\n" to the less pager:\r | |
402 | \r | |
403 | perl -le "print 'foo'; print STDERR 'bar'" 2>&1 | less\r | |
404 | \r | |
405 | This pipes "foo" to the pager and writes "bar" in the file "blurch":\r | |
406 | \r | |
407 | perl -e "print 'foo'; print STDERR 'bar'" 2> blurch | less\r | |
408 | \r | |
409 | \r | |
410 | Discovering the usefulness of the "command.com" shell on Windows 9x\r | |
411 | is left as an exercise to the reader :)\r | |
412 | \r | |
413 | One particularly pernicious problem with the 4NT command shell for\r | |
414 | Windows NT is that it (nearly) always treats a % character as indicating\r | |
415 | that environment variable expansion is needed. Under this shell, it is\r | |
416 | therefore important to always double any % characters which you want\r | |
417 | Perl to see (for example, for hash variables), even when they are\r | |
418 | quoted.\r | |
419 | \r | |
420 | =item Building Extensions\r | |
421 | \r | |
422 | The Comprehensive Perl Archive Network (CPAN) offers a wealth\r | |
423 | of extensions, some of which require a C compiler to build.\r | |
424 | Look in http://www.cpan.org/ for more information on CPAN.\r | |
425 | \r | |
426 | Note that not all of the extensions available from CPAN may work\r | |
427 | in the Win32 environment; you should check the information at\r | |
428 | http://testers.cpan.org/ before investing too much effort into\r | |
429 | porting modules that don't readily build.\r | |
430 | \r | |
431 | Most extensions (whether they require a C compiler or not) can\r | |
432 | be built, tested and installed with the standard mantra:\r | |
433 | \r | |
434 | perl Makefile.PL\r | |
435 | $MAKE\r | |
436 | $MAKE test\r | |
437 | $MAKE install\r | |
438 | \r | |
439 | where $MAKE is whatever 'make' program you have configured perl to\r | |
440 | use. Use "perl -V:make" to find out what this is. Some extensions\r | |
441 | may not provide a testsuite (so "$MAKE test" may not do anything or\r | |
442 | fail), but most serious ones do.\r | |
443 | \r | |
444 | It is important that you use a supported 'make' program, and\r | |
445 | ensure Config.pm knows about it. If you don't have nmake, you can\r | |
446 | either get dmake from the location mentioned earlier or get an\r | |
447 | old version of nmake reportedly available from:\r | |
448 | \r | |
449 | ftp://ftp.microsoft.com/Softlib/MSLFILES/nmake15.exe\r | |
450 | \r | |
451 | Another option is to use the make written in Perl, available from\r | |
452 | CPAN:\r | |
453 | \r | |
454 | http://www.cpan.org/authors/id/NI-S/Make-0.03.tar.gz\r | |
455 | \r | |
456 | You may also use dmake. See L</"Make"> above on how to get it.\r | |
457 | \r | |
458 | Note that MakeMaker actually emits makefiles with different syntax\r | |
459 | depending on what 'make' it thinks you are using. Therefore, it is\r | |
460 | important that one of the following values appears in Config.pm:\r | |
461 | \r | |
462 | make='nmake' # MakeMaker emits nmake syntax\r | |
463 | make='dmake' # MakeMaker emits dmake syntax\r | |
464 | any other value # MakeMaker emits generic make syntax\r | |
465 | (e.g GNU make, or Perl make)\r | |
466 | \r | |
467 | If the value doesn't match the 'make' program you want to use,\r | |
468 | edit Config.pm to fix it.\r | |
469 | \r | |
470 | If a module implements XSUBs, you will need one of the supported\r | |
471 | C compilers. You must make sure you have set up the environment for\r | |
472 | the compiler for command-line compilation.\r | |
473 | \r | |
474 | If a module does not build for some reason, look carefully for\r | |
475 | why it failed, and report problems to the module author. If\r | |
476 | it looks like the extension building support is at fault, report\r | |
477 | that with full details of how the build failed using the perlbug\r | |
478 | utility.\r | |
479 | \r | |
480 | =item Command-line Wildcard Expansion\r | |
481 | \r | |
482 | The default command shells on DOS descendant operating systems (such\r | |
483 | as they are) usually do not expand wildcard arguments supplied to\r | |
484 | programs. They consider it the application's job to handle that.\r | |
485 | This is commonly achieved by linking the application (in our case,\r | |
486 | perl) with startup code that the C runtime libraries usually provide.\r | |
487 | However, doing that results in incompatible perl versions (since the\r | |
488 | behavior of the argv expansion code differs depending on the\r | |
489 | compiler, and it is even buggy on some compilers). Besides, it may\r | |
490 | be a source of frustration if you use such a perl binary with an\r | |
491 | alternate shell that *does* expand wildcards.\r | |
492 | \r | |
493 | Instead, the following solution works rather well. The nice things\r | |
494 | about it are 1) you can start using it right away; 2) it is more \r | |
495 | powerful, because it will do the right thing with a pattern like\r | |
496 | */*/*.c; 3) you can decide whether you do/don't want to use it; and\r | |
497 | 4) you can extend the method to add any customizations (or even \r | |
498 | entirely different kinds of wildcard expansion).\r | |
499 | \r | |
500 | C:\> copy con c:\perl\lib\Wild.pm\r | |
501 | # Wild.pm - emulate shell @ARGV expansion on shells that don't\r | |
502 | use File::DosGlob;\r | |
503 | @ARGV = map {\r | |
504 | my @g = File::DosGlob::glob($_) if /[*?]/;\r | |
505 | @g ? @g : $_;\r | |
506 | } @ARGV;\r | |
507 | 1;\r | |
508 | ^Z\r | |
509 | C:\> set PERL5OPT=-MWild\r | |
510 | C:\> perl -le "for (@ARGV) { print }" */*/perl*.c\r | |
511 | p4view/perl/perl.c\r | |
512 | p4view/perl/perlio.c\r | |
513 | p4view/perl/perly.c\r | |
514 | perl5.005/win32/perlglob.c\r | |
515 | perl5.005/win32/perllib.c\r | |
516 | perl5.005/win32/perlglob.c\r | |
517 | perl5.005/win32/perllib.c\r | |
518 | perl5.005/win32/perlglob.c\r | |
519 | perl5.005/win32/perllib.c\r | |
520 | \r | |
521 | Note there are two distinct steps there: 1) You'll have to create\r | |
522 | Wild.pm and put it in your perl lib directory. 2) You'll need to\r | |
523 | set the PERL5OPT environment variable. If you want argv expansion\r | |
524 | to be the default, just set PERL5OPT in your default startup\r | |
525 | environment.\r | |
526 | \r | |
527 | If you are using the Visual C compiler, you can get the C runtime's\r | |
528 | command line wildcard expansion built into perl binary. The resulting\r | |
529 | binary will always expand unquoted command lines, which may not be\r | |
530 | what you want if you use a shell that does that for you. The expansion\r | |
531 | done is also somewhat less powerful than the approach suggested above.\r | |
532 | \r | |
533 | =item Win32 Specific Extensions\r | |
534 | \r | |
535 | A number of extensions specific to the Win32 platform are available\r | |
536 | from CPAN. You may find that many of these extensions are meant to\r | |
537 | be used under the Activeware port of Perl, which used to be the only\r | |
538 | native port for the Win32 platform. Since the Activeware port does not\r | |
539 | have adequate support for Perl's extension building tools, these\r | |
540 | extensions typically do not support those tools either and, therefore,\r | |
541 | cannot be built using the generic steps shown in the previous section.\r | |
542 | \r | |
543 | To ensure smooth transitioning of existing code that uses the\r | |
544 | ActiveState port, there is a bundle of Win32 extensions that contains\r | |
545 | all of the ActiveState extensions and most other Win32 extensions from\r | |
546 | CPAN in source form, along with many added bugfixes, and with MakeMaker\r | |
547 | support. This bundle is available at:\r | |
548 | \r | |
549 | http://www.cpan.org/authors/id/GSAR/libwin32-0.151.zip\r | |
550 | \r | |
551 | See the README in that distribution for building and installation\r | |
552 | instructions. Look for later versions that may be available at the\r | |
553 | same location.\r | |
554 | \r | |
555 | =item Running Perl Scripts\r | |
556 | \r | |
557 | Perl scripts on UNIX use the "#!" (a.k.a "shebang") line to\r | |
558 | indicate to the OS that it should execute the file using perl.\r | |
559 | Win32 has no comparable means to indicate arbitrary files are\r | |
560 | executables.\r | |
561 | \r | |
562 | Instead, all available methods to execute plain text files on\r | |
563 | Win32 rely on the file "extension". There are three methods\r | |
564 | to use this to execute perl scripts:\r | |
565 | \r | |
566 | =over 8\r | |
567 | \r | |
568 | =item 1\r | |
569 | \r | |
570 | There is a facility called "file extension associations" that will\r | |
571 | work in Windows NT 4.0. This can be manipulated via the two\r | |
572 | commands "assoc" and "ftype" that come standard with Windows NT\r | |
573 | 4.0. Type "ftype /?" for a complete example of how to set this\r | |
574 | up for perl scripts (Say what? You thought Windows NT wasn't\r | |
575 | perl-ready? :).\r | |
576 | \r | |
577 | =item 2\r | |
578 | \r | |
579 | Since file associations don't work everywhere, and there are\r | |
580 | reportedly bugs with file associations where it does work, the\r | |
581 | old method of wrapping the perl script to make it look like a\r | |
582 | regular batch file to the OS, may be used. The install process\r | |
583 | makes available the "pl2bat.bat" script which can be used to wrap\r | |
584 | perl scripts into batch files. For example:\r | |
585 | \r | |
586 | pl2bat foo.pl\r | |
587 | \r | |
588 | will create the file "FOO.BAT". Note "pl2bat" strips any\r | |
589 | .pl suffix and adds a .bat suffix to the generated file.\r | |
590 | \r | |
591 | If you use the 4DOS/NT or similar command shell, note that\r | |
592 | "pl2bat" uses the "%*" variable in the generated batch file to\r | |
593 | refer to all the command line arguments, so you may need to make\r | |
594 | sure that construct works in batch files. As of this writing,\r | |
595 | 4DOS/NT users will need a "ParameterChar = *" statement in their\r | |
596 | 4NT.INI file or will need to execute "setdos /p*" in the 4DOS/NT\r | |
597 | startup file to enable this to work.\r | |
598 | \r | |
599 | =item 3\r | |
600 | \r | |
601 | Using "pl2bat" has a few problems: the file name gets changed,\r | |
602 | so scripts that rely on C<$0> to find what they must do may not\r | |
603 | run properly; running "pl2bat" replicates the contents of the\r | |
604 | original script, and so this process can be maintenance intensive\r | |
605 | if the originals get updated often. A different approach that\r | |
606 | avoids both problems is possible.\r | |
607 | \r | |
608 | A script called "runperl.bat" is available that can be copied\r | |
609 | to any filename (along with the .bat suffix). For example,\r | |
610 | if you call it "foo.bat", it will run the file "foo" when it is\r | |
611 | executed. Since you can run batch files on Win32 platforms simply\r | |
612 | by typing the name (without the extension), this effectively\r | |
613 | runs the file "foo", when you type either "foo" or "foo.bat".\r | |
614 | With this method, "foo.bat" can even be in a different location\r | |
615 | than the file "foo", as long as "foo" is available somewhere on\r | |
616 | the PATH. If your scripts are on a filesystem that allows symbolic\r | |
617 | links, you can even avoid copying "runperl.bat".\r | |
618 | \r | |
619 | Here's a diversion: copy "runperl.bat" to "runperl", and type\r | |
620 | "runperl". Explain the observed behavior, or lack thereof. :)\r | |
621 | Hint: .gnidnats llits er'uoy fi ,"lrepnur" eteled :tniH\r | |
622 | \r | |
623 | =back\r | |
624 | \r | |
625 | =item Miscellaneous Things\r | |
626 | \r | |
627 | A full set of HTML documentation is installed, so you should be\r | |
628 | able to use it if you have a web browser installed on your\r | |
629 | system.\r | |
630 | \r | |
631 | C<perldoc> is also a useful tool for browsing information contained\r | |
632 | in the documentation, especially in conjunction with a pager\r | |
633 | like C<less> (recent versions of which have Win32 support). You may\r | |
634 | have to set the PAGER environment variable to use a specific pager.\r | |
635 | "perldoc -f foo" will print information about the perl operator\r | |
636 | "foo".\r | |
637 | \r | |
638 | If you find bugs in perl, you can run C<perlbug> to create a\r | |
639 | bug report (you may have to send it manually if C<perlbug> cannot\r | |
640 | find a mailer on your system).\r | |
641 | \r | |
642 | =back\r | |
643 | \r | |
644 | =head1 BUGS AND CAVEATS\r | |
645 | \r | |
646 | Norton AntiVirus interferes with the build process, particularly if \r | |
647 | set to "AutoProtect, All Files, when Opened". Unlike large applications \r | |
648 | the perl build process opens and modifies a lot of files. Having the \r | |
649 | the AntiVirus scan each and every one slows build the process significantly.\r | |
650 | Worse, with PERLIO=stdio the build process fails with peculiar messages\r | |
651 | as the virus checker interacts badly with miniperl.exe writing configure \r | |
652 | files (it seems to either catch file part written and treat it as suspicious,\r | |
653 | or virus checker may have it "locked" in a way which inhibits miniperl\r | |
654 | updating it). The build does complete with \r | |
655 | \r | |
656 | set PERLIO=perlio\r | |
657 | \r | |
658 | but that may be just luck. Other AntiVirus software may have similar issues.\r | |
659 | \r | |
660 | Some of the built-in functions do not act exactly as documented in\r | |
661 | L<perlfunc>, and a few are not implemented at all. To avoid\r | |
662 | surprises, particularly if you have had prior exposure to Perl\r | |
663 | in other operating environments or if you intend to write code\r | |
664 | that will be portable to other environments. See L<perlport>\r | |
665 | for a reasonably definitive list of these differences.\r | |
666 | \r | |
667 | Not all extensions available from CPAN may build or work properly\r | |
668 | in the Win32 environment. See L</"Building Extensions">.\r | |
669 | \r | |
670 | Most C<socket()> related calls are supported, but they may not\r | |
671 | behave as on Unix platforms. See L<perlport> for the full list.\r | |
672 | \r | |
673 | Signal handling may not behave as on Unix platforms (where it\r | |
674 | doesn't exactly "behave", either :). For instance, calling C<die()>\r | |
675 | or C<exit()> from signal handlers will cause an exception, since most\r | |
676 | implementations of C<signal()> on Win32 are severely crippled.\r | |
677 | Thus, signals may work only for simple things like setting a flag\r | |
678 | variable in the handler. Using signals under this port should\r | |
679 | currently be considered unsupported.\r | |
680 | \r | |
681 | Please send detailed descriptions of any problems and solutions that \r | |
682 | you may find to <F<perlbug@perl.com>>, along with the output produced\r | |
683 | by C<perl -V>.\r | |
684 | \r | |
685 | =head1 AUTHORS\r | |
686 | \r | |
687 | =over 4\r | |
688 | \r | |
689 | =item Gary Ng E<lt>71564.1743@CompuServe.COME<gt>\r | |
690 | \r | |
691 | =item Gurusamy Sarathy E<lt>gsar@activestate.comE<gt>\r | |
692 | \r | |
693 | =item Nick Ing-Simmons E<lt>nick@ing-simmons.netE<gt>\r | |
694 | \r | |
695 | =back\r | |
696 | \r | |
697 | This document is maintained by Gurusamy Sarathy.\r | |
698 | \r | |
699 | =head1 SEE ALSO\r | |
700 | \r | |
701 | L<perl>\r | |
702 | \r | |
703 | =head1 HISTORY\r | |
704 | \r | |
705 | This port was originally contributed by Gary Ng around 5.003_24,\r | |
706 | and borrowed from the Hip Communications port that was available\r | |
707 | at the time. Various people have made numerous and sundry hacks\r | |
708 | since then.\r | |
709 | \r | |
710 | Borland support was added in 5.004_01 (Gurusamy Sarathy).\r | |
711 | \r | |
712 | GCC/mingw32 support was added in 5.005 (Nick Ing-Simmons).\r | |
713 | \r | |
714 | Support for PERL_OBJECT was added in 5.005 (ActiveState Tool Corp).\r | |
715 | \r | |
716 | Support for fork() emulation was added in 5.6 (ActiveState Tool Corp).\r | |
717 | \r | |
718 | Win9x support was added in 5.6 (Benjamin Stuhl).\r | |
719 | \r | |
720 | Last updated: 1 April 2001\r | |
721 | \r | |
722 | =cut\r |