Commit | Line | Data |
a0d0e21e |
1 | #!./miniperl -w |
2f4f46ad |
2 | use strict; |
3 | use vars qw(%Config $Config_SH_expanded); |
8990e307 |
4 | |
a8e1d30b |
5 | my $how_many_common = 22; |
6 | |
7 | # commonly used names to precache (and hence lookup fastest) |
8 | my %Common; |
9 | |
10 | while ($how_many_common--) { |
11 | $_ = <DATA>; |
12 | chomp; |
13 | /^(\S+):\s*(\d+)$/ or die "Malformed line '$_'"; |
14 | $Common{$1} = $1; |
15 | } |
5435c704 |
16 | |
17 | # names of things which may need to have slashes changed to double-colons |
18 | my %Extensions = map {($_,$_)} |
19 | qw(dynamic_ext static_ext extensions known_extensions); |
20 | |
21 | # allowed opts as well as specifies default and initial values |
22 | my %Allowed_Opts = ( |
2d9d8159 |
23 | 'cross' => '', # --cross=PLATFORM - crosscompiling for PLATFORM |
24 | 'glossary' => 1, # --no-glossary - no glossary file inclusion, |
5435c704 |
25 | # for compactness |
2d9d8159 |
26 | 'heavy' => '', # pathname of the Config_heavy.pl file |
18f68570 |
27 | ); |
18f68570 |
28 | |
5435c704 |
29 | sub opts { |
30 | # user specified options |
31 | my %given_opts = ( |
32 | # --opt=smth |
33 | (map {/^--([\-_\w]+)=(.*)$/} @ARGV), |
34 | # --opt --no-opt --noopt |
35 | (map {/^no-?(.*)$/i?($1=>0):($_=>1)} map {/^--([\-_\w]+)$/} @ARGV), |
36 | ); |
37 | |
38 | my %opts = (%Allowed_Opts, %given_opts); |
39 | |
40 | for my $opt (grep {!exists $Allowed_Opts{$_}} keys %given_opts) { |
41 | die "option '$opt' is not recognized"; |
42 | } |
43 | @ARGV = grep {!/^--/} @ARGV; |
44 | |
45 | return %opts; |
46 | } |
18f68570 |
47 | |
5435c704 |
48 | |
49 | my %Opts = opts(); |
50 | |
2d9d8159 |
51 | my ($Config_PM, $Config_heavy); |
5435c704 |
52 | my $Glossary = $ARGV[1] || 'Porting/Glossary'; |
53 | |
54 | if ($Opts{cross}) { |
18f68570 |
55 | # creating cross-platform config file |
56 | mkdir "xlib"; |
5435c704 |
57 | mkdir "xlib/$Opts{cross}"; |
58 | $Config_PM = $ARGV[0] || "xlib/$Opts{cross}/Config.pm"; |
18f68570 |
59 | } |
60 | else { |
5435c704 |
61 | $Config_PM = $ARGV[0] || 'lib/Config.pm'; |
18f68570 |
62 | } |
2d9d8159 |
63 | if ($Opts{heavy}) { |
64 | $Config_heavy = $Opts{heavy}; |
65 | } |
66 | else { |
67 | ($Config_heavy = $Config_PM) =~ s!\.pm$!_heavy.pl!; |
68 | die "Can't automatically determine name for Config_heavy.pl from '$Config_PM'" |
69 | if $Config_heavy eq $Config_PM; |
70 | } |
8990e307 |
71 | |
5435c704 |
72 | open CONFIG, ">$Config_PM" or die "Can't open $Config_PM: $!\n"; |
2d9d8159 |
73 | open CONFIG_HEAVY, ">$Config_heavy" or die "Can't open $Config_heavy: $!\n"; |
74 | |
75 | print CONFIG_HEAVY <<'ENDOFBEG'; |
76 | # This file was created by configpm when Perl was built. Any changes |
77 | # made to this file will be lost the next time perl is built. |
78 | |
79 | package Config; |
80 | use strict; |
81 | # use warnings; Pulls in Carp |
82 | # use vars pulls in Carp |
83 | ENDOFBEG |
fec02dd3 |
84 | |
9137345a |
85 | my $myver = sprintf "%vd", $^V; |
a0d0e21e |
86 | |
5435c704 |
87 | printf CONFIG <<'ENDOFBEG', ($myver) x 3; |
88 | # This file was created by configpm when Perl was built. Any changes |
89 | # made to this file will be lost the next time perl is built. |
3c81428c |
90 | |
8990e307 |
91 | package Config; |
2f4f46ad |
92 | use strict; |
93 | # use warnings; Pulls in Carp |
94 | # use vars pulls in Carp |
95 | @Config::EXPORT = qw(%%Config); |
96 | @Config::EXPORT_OK = qw(myconfig config_sh config_vars config_re); |
a48f8c77 |
97 | |
43d06990 |
98 | # Need to stub all the functions to make code such as print Config::config_sh |
99 | # keep working |
100 | |
101 | sub myconfig; |
102 | sub config_sh; |
103 | sub config_vars; |
104 | sub config_re; |
105 | |
2f4f46ad |
106 | my %%Export_Cache = map {($_ => 1)} (@Config::EXPORT, @Config::EXPORT_OK); |
107 | |
108 | our %%Config; |
e3d0cac0 |
109 | |
110 | # Define our own import method to avoid pulling in the full Exporter: |
111 | sub import { |
a48f8c77 |
112 | my $pkg = shift; |
2f4f46ad |
113 | @_ = @Config::EXPORT unless @_; |
5435c704 |
114 | |
a48f8c77 |
115 | my @funcs = grep $_ ne '%%Config', @_; |
116 | my $export_Config = @funcs < @_ ? 1 : 0; |
5435c704 |
117 | |
2f4f46ad |
118 | no strict 'refs'; |
a48f8c77 |
119 | my $callpkg = caller(0); |
120 | foreach my $func (@funcs) { |
121 | die sprintf qq{"%%s" is not exported by the %%s module\n}, |
122 | $func, __PACKAGE__ unless $Export_Cache{$func}; |
123 | *{$callpkg.'::'.$func} = \&{$func}; |
124 | } |
5435c704 |
125 | |
a48f8c77 |
126 | *{"$callpkg\::Config"} = \%%Config if $export_Config; |
127 | return; |
e3d0cac0 |
128 | } |
129 | |
5435c704 |
130 | die "Perl lib version (%s) doesn't match executable version ($])" |
131 | unless $^V; |
de98c553 |
132 | |
5435c704 |
133 | $^V eq %s |
a48f8c77 |
134 | or die "Perl lib version (%s) doesn't match executable version (" . |
135 | sprintf("v%%vd",$^V) . ")"; |
a0d0e21e |
136 | |
8990e307 |
137 | ENDOFBEG |
138 | |
16d20bd9 |
139 | |
5435c704 |
140 | my @non_v = (); |
5435c704 |
141 | my @v_others = (); |
142 | my $in_v = 0; |
143 | my %Data = (); |
144 | |
a0d0e21e |
145 | |
1a9ca827 |
146 | my %seen_quotes; |
2f4f46ad |
147 | { |
148 | my ($name, $val); |
149 | open(CONFIG_SH, 'config.sh') || die "Can't open config.sh: $!"; |
150 | while (<CONFIG_SH>) { |
a0d0e21e |
151 | next if m:^#!/bin/sh:; |
5435c704 |
152 | |
a02608de |
153 | # Catch PERL_CONFIG_SH=true and PERL_VERSION=n line from Configure. |
d4de4258 |
154 | s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/ or m/^(\w+)='(.*)'$/; |
3905a40f |
155 | my($k, $v) = ($1, $2); |
5435c704 |
156 | |
2000072c |
157 | # grandfather PATCHLEVEL and SUBVERSION and CONFIG |
cceca5ed |
158 | if ($k) { |
159 | if ($k eq 'PERL_VERSION') { |
160 | push @v_others, "PATCHLEVEL='$v'\n"; |
161 | } |
162 | elsif ($k eq 'PERL_SUBVERSION') { |
163 | push @v_others, "SUBVERSION='$v'\n"; |
164 | } |
a02608de |
165 | elsif ($k eq 'PERL_CONFIG_SH') { |
2000072c |
166 | push @v_others, "CONFIG='$v'\n"; |
167 | } |
cceca5ed |
168 | } |
5435c704 |
169 | |
435ec615 |
170 | # We can delimit things in config.sh with either ' or ". |
171 | unless ($in_v or m/^(\w+)=(['"])(.*\n)/){ |
a0d0e21e |
172 | push(@non_v, "#$_"); # not a name='value' line |
173 | next; |
174 | } |
2f4f46ad |
175 | my $quote = $2; |
5435c704 |
176 | if ($in_v) { |
177 | $val .= $_; |
178 | } |
179 | else { |
180 | ($name,$val) = ($1,$3); |
181 | } |
435ec615 |
182 | $in_v = $val !~ /$quote\n/; |
44a8e56a |
183 | next if $in_v; |
a0d0e21e |
184 | |
5435c704 |
185 | s,/,::,g if $Extensions{$name}; |
a0d0e21e |
186 | |
5435c704 |
187 | $val =~ s/$quote\n?\z//; |
3c81428c |
188 | |
5435c704 |
189 | my $line = "$name=$quote$val$quote\n"; |
deeea481 |
190 | push(@v_others, $line); |
1a9ca827 |
191 | $seen_quotes{$quote}++; |
2f4f46ad |
192 | } |
193 | close CONFIG_SH; |
5435c704 |
194 | } |
2f4f46ad |
195 | |
1a9ca827 |
196 | # This is somewhat grim, but I want the code for parsing config.sh here and |
197 | # now so that I can expand $Config{ivsize} and $Config{ivtype} |
198 | |
199 | my $fetch_string = <<'EOT'; |
200 | |
201 | # Search for it in the big string |
202 | sub fetch_string { |
203 | my($self, $key) = @_; |
204 | |
205 | EOT |
206 | |
207 | if ($seen_quotes{'"'}) { |
208 | # We need the full ' and " code |
209 | $fetch_string .= <<'EOT'; |
210 | my $quote_type = "'"; |
211 | my $marker = "$key="; |
212 | |
213 | # Check for the common case, ' delimited |
214 | my $start = index($Config_SH_expanded, "\n$marker$quote_type"); |
215 | # If that failed, check for " delimited |
216 | if ($start == -1) { |
217 | $quote_type = '"'; |
218 | $start = index($Config_SH_expanded, "\n$marker$quote_type"); |
219 | } |
220 | EOT |
221 | } else { |
222 | $fetch_string .= <<'EOT'; |
223 | # We only have ' delimted. |
224 | my $start = index($Config_SH_expanded, "\n$key=\'"); |
225 | EOT |
226 | } |
227 | $fetch_string .= <<'EOT'; |
228 | # Start can never be -1 now, as we've rigged the long string we're |
229 | # searching with an initial dummy newline. |
230 | return undef if $start == -1; |
231 | |
232 | $start += length($key) + 3; |
233 | |
234 | EOT |
235 | if (!$seen_quotes{'"'}) { |
236 | # Don't need the full ' and " code, or the eval expansion. |
237 | $fetch_string .= <<'EOT'; |
238 | my $value = substr($Config_SH_expanded, $start, |
239 | index($Config_SH_expanded, "'\n", $start) |
240 | - $start); |
241 | EOT |
242 | } else { |
243 | $fetch_string .= <<'EOT'; |
244 | my $value = substr($Config_SH_expanded, $start, |
245 | index($Config_SH_expanded, "$quote_type\n", $start) |
246 | - $start); |
247 | |
248 | # If we had a double-quote, we'd better eval it so escape |
249 | # sequences and such can be interpolated. Since the incoming |
250 | # value is supposed to follow shell rules and not perl rules, |
251 | # we escape any perl variable markers |
252 | if ($quote_type eq '"') { |
253 | $value =~ s/\$/\\\$/g; |
254 | $value =~ s/\@/\\\@/g; |
255 | eval "\$value = \"$value\""; |
256 | } |
257 | EOT |
258 | } |
259 | $fetch_string .= <<'EOT'; |
260 | # So we can say "if $Config{'foo'}". |
261 | $value = undef if $value eq 'undef'; |
262 | $self->{$key} = $value; # cache it |
263 | } |
264 | EOT |
265 | |
266 | eval $fetch_string; |
267 | die if $@; |
3c81428c |
268 | |
8468119f |
269 | # Calculation for the keys for byteorder |
270 | # This is somewhat grim, but I need to run fetch_string here. |
deeea481 |
271 | our $Config_SH_expanded = join "\n", '', @v_others; |
8468119f |
272 | |
273 | my $t = fetch_string ({}, 'ivtype'); |
274 | my $s = fetch_string ({}, 'ivsize'); |
275 | |
276 | # byteorder does exist on its own but we overlay a virtual |
277 | # dynamically recomputed value. |
278 | |
279 | # However, ivtype and ivsize will not vary for sane fat binaries |
280 | |
281 | my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I'; |
282 | |
283 | my $byteorder_code; |
284 | if ($s == 4 || $s == 8) { |
285 | my $list = join ',', reverse(2..$s); |
286 | my $format = 'a'x$s; |
287 | $byteorder_code = <<"EOT"; |
2855b621 |
288 | |
8468119f |
289 | my \$i = 0; |
290 | foreach my \$c ($list) { \$i |= ord(\$c); \$i <<= 8 } |
291 | \$i |= ord(1); |
2d9d8159 |
292 | our \$byteorder = join('', unpack('$format', pack('$f', \$i))); |
8468119f |
293 | EOT |
294 | } else { |
2d9d8159 |
295 | $byteorder_code = "our \$byteorder = '?'x$s;\n"; |
8468119f |
296 | } |
297 | |
88fe16b2 |
298 | my @need_relocation; |
299 | |
300 | if (fetch_string({},'userelocatableinc')) { |
4d20abad |
301 | foreach my $what (qw(prefixexp |
302 | |
303 | archlibexp |
304 | html1direxp |
305 | html3direxp |
306 | man1direxp |
307 | man3direxp |
91f668c3 |
308 | privlibexp |
4d20abad |
309 | scriptdirexp |
91f668c3 |
310 | sitearchexp |
4d20abad |
311 | sitebinexp |
312 | sitehtml1direxp |
313 | sitehtml3direxp |
91f668c3 |
314 | sitelibexp |
4d20abad |
315 | siteman1direxp |
316 | siteman3direxp |
317 | sitescriptexp |
91f668c3 |
318 | vendorarchexp |
4d20abad |
319 | vendorbinexp |
320 | vendorhtml1direxp |
321 | vendorhtml3direxp |
91f668c3 |
322 | vendorlibexp |
4d20abad |
323 | vendorman1direxp |
324 | vendorman3direxp |
325 | vendorscriptexp |
326 | |
327 | siteprefixexp |
328 | sitelib_stem |
1d230ada |
329 | vendorlib_stem |
330 | |
331 | installarchlib |
332 | installhtml1dir |
333 | installhtml3dir |
334 | installman1dir |
335 | installman3dir |
336 | installprefix |
337 | installprefixexp |
338 | installprivlib |
339 | installscript |
340 | installsitearch |
341 | installsitebin |
342 | installsitehtml1dir |
343 | installsitehtml3dir |
344 | installsitelib |
345 | installsiteman1dir |
346 | installsiteman3dir |
347 | installsitescript |
348 | installvendorarch |
349 | installvendorbin |
350 | installvendorhtml1dir |
351 | installvendorhtml3dir |
352 | installvendorlib |
353 | installvendorman1dir |
354 | installvendorman3dir |
355 | installvendorscript |
356 | )) { |
88fe16b2 |
357 | push @need_relocation, $what if fetch_string({}, $what) =~ m!^\.\.\./!; |
358 | } |
88fe16b2 |
359 | } |
360 | |
361 | my %need_relocation; |
362 | @need_relocation{@need_relocation} = @need_relocation; |
363 | |
91f668c3 |
364 | # This can have .../ anywhere: |
365 | if (fetch_string({}, 'otherlibdirs') =~ m!\.\.\./!) { |
366 | $need_relocation{otherlibdirs} = 'otherlibdirs'; |
367 | } |
368 | |
88fe16b2 |
369 | my $relocation_code = <<'EOT'; |
370 | |
371 | sub relocate_inc { |
372 | my $libdir = shift; |
373 | return $libdir unless $libdir =~ s!^\.\.\./!!; |
374 | my $prefix = $^X; |
375 | if ($prefix =~ s!/[^/]*$!!) { |
376 | while ($libdir =~ m!^\.\./!) { |
377 | # Loop while $libdir starts "../" and $prefix still has a trailing |
378 | # directory |
379 | last unless $prefix =~ s!/([^/]+)$!!; |
380 | # but bail out if the directory we picked off the end of $prefix is . |
381 | # or .. |
382 | if ($1 eq '.' or $1 eq '..') { |
383 | # Undo! This should be rare, hence code it this way rather than a |
384 | # check each time before the s!!! above. |
385 | $prefix = "$prefix/$1"; |
386 | last; |
387 | } |
388 | # Remove that leading ../ and loop again |
389 | substr ($libdir, 0, 3, ''); |
390 | } |
391 | $libdir = "$prefix/$libdir"; |
392 | } |
393 | $libdir; |
394 | } |
395 | EOT |
396 | |
91f668c3 |
397 | if (%need_relocation) { |
88fe16b2 |
398 | my $relocations_in_common; |
91f668c3 |
399 | # otherlibdirs only features in the hash |
400 | foreach (keys %need_relocation) { |
88fe16b2 |
401 | $relocations_in_common++ if $Common{$_}; |
402 | } |
403 | if ($relocations_in_common) { |
404 | print CONFIG $relocation_code; |
405 | } else { |
406 | print CONFIG_HEAVY $relocation_code; |
407 | } |
408 | } |
409 | |
2d9d8159 |
410 | print CONFIG_HEAVY @non_v, "\n"; |
3c81428c |
411 | |
5435c704 |
412 | # copy config summary format from the myconfig.SH script |
e935c5a4 |
413 | print CONFIG_HEAVY "our \$summary = <<'!END!';\n"; |
3b5ca523 |
414 | open(MYCONFIG,"<myconfig.SH") || die "open myconfig.SH failed: $!"; |
54310121 |
415 | 1 while defined($_ = <MYCONFIG>) && !/^Summary of/; |
2d9d8159 |
416 | do { print CONFIG_HEAVY $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/; |
3c81428c |
417 | close(MYCONFIG); |
a0d0e21e |
418 | |
2d9d8159 |
419 | print CONFIG_HEAVY "\n!END!\n", <<'EOT'; |
90ec21fb |
420 | my $summary_expanded; |
3c81428c |
421 | |
422 | sub myconfig { |
90ec21fb |
423 | return $summary_expanded if $summary_expanded; |
424 | ($summary_expanded = $summary) =~ s{\$(\w+)} |
2d9d8159 |
425 | { my $c = $Config::Config{$1}; defined($c) ? $c : 'undef' }ge; |
90ec21fb |
426 | $summary_expanded; |
3c81428c |
427 | } |
5435c704 |
428 | |
8468119f |
429 | local *_ = \my $a; |
430 | $_ = <<'!END!'; |
3c81428c |
431 | EOT |
432 | |
deeea481 |
433 | print CONFIG_HEAVY join('', sort @v_others), "!END!\n"; |
2855b621 |
434 | |
435 | # Only need the dynamic byteorder code in Config.pm if 'byteorder' is one of |
436 | # the precached keys |
437 | if ($Common{byteorder}) { |
438 | print CONFIG $byteorder_code; |
439 | } else { |
440 | print CONFIG_HEAVY $byteorder_code; |
441 | } |
5435c704 |
442 | |
88fe16b2 |
443 | if (@need_relocation) { |
444 | print CONFIG_HEAVY 'foreach my $what (qw(', join (' ', @need_relocation), |
445 | ")) {\n", <<'EOT'; |
86ef366e |
446 | s<^($what=)(['"])(.*?)\2> |
447 | <$1 . $2 . relocate_inc($3) . $2 . "\n" . |
448 | 'raw_' . $1 . $2 . $3 . $2>me; |
88fe16b2 |
449 | } |
450 | EOT |
91f668c3 |
451 | # Currently it only makes sense to do the ... relocation on Unix, so there's |
452 | # no need to emulate the "which separator for this platform" logic in perl.c - |
453 | # ':' will always be applicable |
454 | if ($need_relocation{otherlibdirs}) { |
455 | print CONFIG_HEAVY << 'EOT'; |
456 | s{^(otherlibdirs=)(['"])(.*?)\2} |
457 | {$1 . $2 . join ':', map {relocate_inc($_)} split ':', $3 . $2}me; |
458 | EOT |
459 | } |
88fe16b2 |
460 | } |
461 | |
2d9d8159 |
462 | print CONFIG_HEAVY <<'EOT'; |
2d9d8159 |
463 | s/(byteorder=)(['"]).*?\2/$1$2$Config::byteorder$2/m; |
43d06990 |
464 | |
465 | my $config_sh_len = length $_; |
3be00128 |
466 | |
e935c5a4 |
467 | our $Config_SH_expanded = "\n$_" . << 'EOVIRTUAL'; |
8468119f |
468 | EOT |
469 | |
06482b90 |
470 | foreach my $prefix (qw(ccflags ldflags)) { |
471 | my $value = fetch_string ({}, $prefix); |
472 | my $withlargefiles = fetch_string ({}, $prefix . "_uselargefiles"); |
27da23d5 |
473 | if (defined $withlargefiles) { |
474 | $value =~ s/\Q$withlargefiles\E\b//; |
475 | print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n"; |
476 | } |
06482b90 |
477 | } |
5435c704 |
478 | |
06482b90 |
479 | foreach my $prefix (qw(libs libswanted)) { |
480 | my $value = fetch_string ({}, $prefix); |
27da23d5 |
481 | my $withlf = fetch_string ({}, 'libswanted_uselargefiles'); |
482 | next unless defined $withlf; |
06482b90 |
483 | my @lflibswanted |
484 | = split(' ', fetch_string ({}, 'libswanted_uselargefiles')); |
485 | if (@lflibswanted) { |
486 | my %lflibswanted; |
487 | @lflibswanted{@lflibswanted} = (); |
488 | if ($prefix eq 'libs') { |
489 | my @libs = grep { /^-l(.+)/ && |
490 | not exists $lflibswanted{$1} } |
491 | split(' ', fetch_string ({}, 'libs')); |
492 | $value = join(' ', @libs); |
493 | } else { |
494 | my @libswanted = grep { not exists $lflibswanted{$_} } |
495 | split(' ', fetch_string ({}, 'libswanted')); |
496 | $value = join(' ', @libswanted); |
4b2ec495 |
497 | } |
435ec615 |
498 | } |
2d9d8159 |
499 | print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n"; |
5435c704 |
500 | } |
501 | |
2d9d8159 |
502 | print CONFIG_HEAVY "EOVIRTUAL\n"; |
06482b90 |
503 | |
2d9d8159 |
504 | print CONFIG_HEAVY $fetch_string; |
06482b90 |
505 | |
506 | print CONFIG <<'ENDOFEND'; |
507 | |
2d9d8159 |
508 | sub FETCH { |
5435c704 |
509 | my($self, $key) = @_; |
510 | |
511 | # check for cached value (which may be undef so we use exists not defined) |
512 | return $self->{$key} if exists $self->{$key}; |
513 | |
06482b90 |
514 | return $self->fetch_string($key); |
a0d0e21e |
515 | } |
2d9d8159 |
516 | ENDOFEND |
517 | |
518 | print CONFIG_HEAVY <<'ENDOFEND'; |
1a9ca827 |
519 | |
3c81428c |
520 | my $prevpos = 0; |
521 | |
a0d0e21e |
522 | sub FIRSTKEY { |
523 | $prevpos = 0; |
2ddb7828 |
524 | substr($Config_SH_expanded, 1, index($Config_SH_expanded, '=') - 1 ); |
a0d0e21e |
525 | } |
526 | |
527 | sub NEXTKEY { |
1a9ca827 |
528 | ENDOFEND |
529 | if ($seen_quotes{'"'}) { |
530 | print CONFIG_HEAVY <<'ENDOFEND'; |
435ec615 |
531 | # Find out how the current key's quoted so we can skip to its end. |
3be00128 |
532 | my $quote = substr($Config_SH_expanded, |
533 | index($Config_SH_expanded, "=", $prevpos)+1, 1); |
534 | my $pos = index($Config_SH_expanded, qq($quote\n), $prevpos) + 2; |
1a9ca827 |
535 | ENDOFEND |
536 | } else { |
537 | # Just ' quotes, so it's much easier. |
538 | print CONFIG_HEAVY <<'ENDOFEND'; |
539 | my $pos = index($Config_SH_expanded, qq('\n), $prevpos) + 2; |
540 | ENDOFEND |
541 | } |
542 | print CONFIG_HEAVY <<'ENDOFEND'; |
3be00128 |
543 | my $len = index($Config_SH_expanded, "=", $pos) - $pos; |
a0d0e21e |
544 | $prevpos = $pos; |
3be00128 |
545 | $len > 0 ? substr($Config_SH_expanded, $pos, $len) : undef; |
85e6fe83 |
546 | } |
a0d0e21e |
547 | |
2ddb7828 |
548 | sub EXISTS { |
5435c704 |
549 | return 1 if exists($_[0]->{$_[1]}); |
550 | |
1a9ca827 |
551 | return(index($Config_SH_expanded, "\n$_[1]='") != -1 |
552 | ENDOFEND |
553 | if ($seen_quotes{'"'}) { |
554 | print CONFIG_HEAVY <<'ENDOFEND'; |
555 | or index($Config_SH_expanded, "\n$_[1]=\"") != -1 |
556 | ENDOFEND |
557 | } |
558 | print CONFIG_HEAVY <<'ENDOFEND'; |
5435c704 |
559 | ); |
a0d0e21e |
560 | } |
561 | |
3c81428c |
562 | sub STORE { die "\%Config::Config is read-only\n" } |
5435c704 |
563 | *DELETE = \&STORE; |
564 | *CLEAR = \&STORE; |
a0d0e21e |
565 | |
3c81428c |
566 | |
567 | sub config_sh { |
43d06990 |
568 | substr $Config_SH_expanded, 1, $config_sh_len; |
748a9306 |
569 | } |
9193ea20 |
570 | |
571 | sub config_re { |
572 | my $re = shift; |
3be00128 |
573 | return map { chomp; $_ } grep eval{ /^(?:$re)=/ }, split /^/, |
574 | $Config_SH_expanded; |
9193ea20 |
575 | } |
576 | |
3c81428c |
577 | sub config_vars { |
307dc113 |
578 | # implements -V:cfgvar option (see perlrun -V:) |
a48f8c77 |
579 | foreach (@_) { |
307dc113 |
580 | # find optional leading, trailing colons; and query-spec |
4a305f6a |
581 | my ($notag,$qry,$lncont) = m/^(:)?(.*?)(:)?$/; # flags fore and aft, |
307dc113 |
582 | # map colon-flags to print decorations |
583 | my $prfx = $notag ? '': "$qry="; # tag-prefix for print |
584 | my $lnend = $lncont ? ' ' : ";\n"; # line ending for print |
4a305f6a |
585 | |
307dc113 |
586 | # all config-vars are by definition \w only, any \W means regex |
4a305f6a |
587 | if ($qry =~ /\W/) { |
588 | my @matches = config_re($qry); |
589 | print map "$_$lnend", @matches ? @matches : "$qry: not found" if !$notag; |
590 | print map { s/\w+=//; "$_$lnend" } @matches ? @matches : "$qry: not found" if $notag; |
a48f8c77 |
591 | } else { |
2d9d8159 |
592 | my $v = (exists $Config::Config{$qry}) ? $Config::Config{$qry} |
593 | : 'UNKNOWN'; |
a48f8c77 |
594 | $v = 'undef' unless defined $v; |
4a305f6a |
595 | print "${prfx}'${v}'$lnend"; |
a48f8c77 |
596 | } |
3c81428c |
597 | } |
598 | } |
599 | |
2d9d8159 |
600 | # Called by the real AUTOLOAD |
601 | sub launcher { |
602 | undef &AUTOLOAD; |
603 | goto \&$Config::AUTOLOAD; |
604 | } |
605 | |
606 | 1; |
9193ea20 |
607 | ENDOFEND |
608 | |
609 | if ($^O eq 'os2') { |
a48f8c77 |
610 | print CONFIG <<'ENDOFSET'; |
9193ea20 |
611 | my %preconfig; |
612 | if ($OS2::is_aout) { |
3be00128 |
613 | my ($value, $v) = $Config_SH_expanded =~ m/^used_aout='(.*)'\s*$/m; |
9193ea20 |
614 | for (split ' ', $value) { |
3be00128 |
615 | ($v) = $Config_SH_expanded =~ m/^aout_$_='(.*)'\s*$/m; |
9193ea20 |
616 | $preconfig{$_} = $v eq 'undef' ? undef : $v; |
617 | } |
618 | } |
764df951 |
619 | $preconfig{d_fork} = undef unless $OS2::can_fork; # Some funny cases can't |
9193ea20 |
620 | sub TIEHASH { bless {%preconfig} } |
621 | ENDOFSET |
a48f8c77 |
622 | # Extract the name of the DLL from the makefile to avoid duplication |
623 | my ($f) = grep -r, qw(GNUMakefile Makefile); |
624 | my $dll; |
625 | if (open my $fh, '<', $f) { |
626 | while (<$fh>) { |
627 | $dll = $1, last if /^PERL_DLL_BASE\s*=\s*(\S*)\s*$/; |
628 | } |
30500b05 |
629 | } |
a48f8c77 |
630 | print CONFIG <<ENDOFSET if $dll; |
30500b05 |
631 | \$preconfig{dll_name} = '$dll'; |
632 | ENDOFSET |
9193ea20 |
633 | } else { |
a48f8c77 |
634 | print CONFIG <<'ENDOFSET'; |
5435c704 |
635 | sub TIEHASH { |
636 | bless $_[1], $_[0]; |
637 | } |
9193ea20 |
638 | ENDOFSET |
639 | } |
640 | |
a8e1d30b |
641 | foreach my $key (keys %Common) { |
642 | my $value = fetch_string ({}, $key); |
643 | # Is it safe on the LHS of => ? |
644 | my $qkey = $key =~ /^[A-Za-z_][A-Za-z0-9_]*$/ ? $key : "'$key'"; |
645 | if (defined $value) { |
646 | # Quote things for a '' string |
647 | $value =~ s!\\!\\\\!g; |
648 | $value =~ s!'!\\'!g; |
649 | $value = "'$value'"; |
91f668c3 |
650 | if ($key eq 'otherlibdirs') { |
651 | $value = "join (':', map {relocate_inc(\$_)} split (':', $value))"; |
652 | } elsif ($need_relocation{$key}) { |
88fe16b2 |
653 | $value = "relocate_inc($value)"; |
654 | } |
a8e1d30b |
655 | } else { |
656 | $value = "undef"; |
657 | } |
658 | $Common{$key} = "$qkey => $value"; |
659 | } |
2855b621 |
660 | |
661 | if ($Common{byteorder}) { |
662 | $Common{byteorder} = 'byteorder => $byteorder'; |
663 | } |
664 | my $fast_config = join '', map { " $_,\n" } sort values %Common; |
5435c704 |
665 | |
938af39e |
666 | # Sanity check needed to stop an infite loop if Config_heavy.pl fails to define |
667 | # &launcher for some reason (eg it got truncated) |
8468119f |
668 | print CONFIG sprintf <<'ENDOFTIE', $fast_config; |
9193ea20 |
669 | |
fb73857a |
670 | sub DESTROY { } |
671 | |
2d9d8159 |
672 | sub AUTOLOAD { |
c1b2b415 |
673 | require 'Config_heavy.pl'; |
938af39e |
674 | goto \&launcher unless $Config::AUTOLOAD =~ /launcher$/; |
2d9d8159 |
675 | die "&Config::AUTOLOAD failed on $Config::AUTOLOAD"; |
676 | } |
677 | |
2c165900 |
678 | # tie returns the object, so the value returned to require will be true. |
5435c704 |
679 | tie %%Config, 'Config', { |
a8e1d30b |
680 | %s}; |
5435c704 |
681 | ENDOFTIE |
682 | |
748a9306 |
683 | |
5435c704 |
684 | open(CONFIG_POD, ">lib/Config.pod") or die "Can't open lib/Config.pod: $!"; |
685 | print CONFIG_POD <<'ENDOFTAIL'; |
3c81428c |
686 | =head1 NAME |
a0d0e21e |
687 | |
3c81428c |
688 | Config - access Perl configuration information |
689 | |
690 | =head1 SYNOPSIS |
691 | |
692 | use Config; |
63f18be6 |
693 | if ($Config{usethreads}) { |
694 | print "has thread support\n" |
3c81428c |
695 | } |
696 | |
a48f8c77 |
697 | use Config qw(myconfig config_sh config_vars config_re); |
3c81428c |
698 | |
699 | print myconfig(); |
700 | |
701 | print config_sh(); |
702 | |
a48f8c77 |
703 | print config_re(); |
704 | |
3c81428c |
705 | config_vars(qw(osname archname)); |
706 | |
707 | |
708 | =head1 DESCRIPTION |
709 | |
710 | The Config module contains all the information that was available to |
711 | the C<Configure> program at Perl build time (over 900 values). |
712 | |
713 | Shell variables from the F<config.sh> file (written by Configure) are |
714 | stored in the readonly-variable C<%Config>, indexed by their names. |
715 | |
716 | Values stored in config.sh as 'undef' are returned as undefined |
1fef88e7 |
717 | values. The perl C<exists> function can be used to check if a |
3c81428c |
718 | named variable exists. |
719 | |
720 | =over 4 |
721 | |
722 | =item myconfig() |
723 | |
724 | Returns a textual summary of the major perl configuration values. |
725 | See also C<-V> in L<perlrun/Switches>. |
726 | |
727 | =item config_sh() |
728 | |
729 | Returns the entire perl configuration information in the form of the |
730 | original config.sh shell variable assignment script. |
731 | |
a48f8c77 |
732 | =item config_re($regex) |
733 | |
734 | Like config_sh() but returns, as a list, only the config entries who's |
735 | names match the $regex. |
736 | |
3c81428c |
737 | =item config_vars(@names) |
738 | |
739 | Prints to STDOUT the values of the named configuration variable. Each is |
740 | printed on a separate line in the form: |
741 | |
742 | name='value'; |
743 | |
744 | Names which are unknown are output as C<name='UNKNOWN';>. |
745 | See also C<-V:name> in L<perlrun/Switches>. |
746 | |
747 | =back |
748 | |
749 | =head1 EXAMPLE |
750 | |
751 | Here's a more sophisticated example of using %Config: |
752 | |
753 | use Config; |
743c51bc |
754 | use strict; |
755 | |
756 | my %sig_num; |
757 | my @sig_name; |
758 | unless($Config{sig_name} && $Config{sig_num}) { |
759 | die "No sigs?"; |
760 | } else { |
761 | my @names = split ' ', $Config{sig_name}; |
762 | @sig_num{@names} = split ' ', $Config{sig_num}; |
763 | foreach (@names) { |
764 | $sig_name[$sig_num{$_}] ||= $_; |
765 | } |
766 | } |
3c81428c |
767 | |
743c51bc |
768 | print "signal #17 = $sig_name[17]\n"; |
769 | if ($sig_num{ALRM}) { |
770 | print "SIGALRM is $sig_num{ALRM}\n"; |
3c81428c |
771 | } |
772 | |
773 | =head1 WARNING |
774 | |
775 | Because this information is not stored within the perl executable |
776 | itself it is possible (but unlikely) that the information does not |
777 | relate to the actual perl binary which is being used to access it. |
778 | |
779 | The Config module is installed into the architecture and version |
780 | specific library directory ($Config{installarchlib}) and it checks the |
781 | perl version number when loaded. |
782 | |
435ec615 |
783 | The values stored in config.sh may be either single-quoted or |
784 | double-quoted. Double-quoted strings are handy for those cases where you |
785 | need to include escape sequences in the strings. To avoid runtime variable |
786 | interpolation, any C<$> and C<@> characters are replaced by C<\$> and |
787 | C<\@>, respectively. This isn't foolproof, of course, so don't embed C<\$> |
788 | or C<\@> in double-quoted strings unless you're willing to deal with the |
789 | consequences. (The slashes will end up escaped and the C<$> or C<@> will |
790 | trigger variable interpolation) |
791 | |
ebc74a4b |
792 | =head1 GLOSSARY |
793 | |
794 | Most C<Config> variables are determined by the C<Configure> script |
795 | on platforms supported by it (which is most UNIX platforms). Some |
796 | platforms have custom-made C<Config> variables, and may thus not have |
797 | some of the variables described below, or may have extraneous variables |
798 | specific to that particular port. See the port specific documentation |
799 | in such cases. |
800 | |
ebc74a4b |
801 | ENDOFTAIL |
802 | |
5435c704 |
803 | if ($Opts{glossary}) { |
804 | open(GLOS, "<$Glossary") or die "Can't open $Glossary: $!"; |
18f68570 |
805 | } |
2f4f46ad |
806 | my %seen = (); |
807 | my $text = 0; |
fb87c415 |
808 | $/ = ''; |
809 | |
810 | sub process { |
aade5aff |
811 | if (s/\A(\w*)\s+\(([\w.]+)\):\s*\n(\t?)/=item C<$1>\n\nFrom F<$2>:\n\n/m) { |
812 | my $c = substr $1, 0, 1; |
813 | unless ($seen{$c}++) { |
5435c704 |
814 | print CONFIG_POD <<EOF if $text; |
fb87c415 |
815 | =back |
ebc74a4b |
816 | |
fb87c415 |
817 | EOF |
5435c704 |
818 | print CONFIG_POD <<EOF; |
fb87c415 |
819 | =head2 $c |
820 | |
bbc7dcd2 |
821 | =over 4 |
fb87c415 |
822 | |
823 | EOF |
aade5aff |
824 | $text = 1; |
825 | } |
826 | } |
827 | elsif (!$text || !/\A\t/) { |
828 | warn "Expected a Configure variable header", |
829 | ($text ? " or another paragraph of description" : () ); |
fb87c415 |
830 | } |
831 | s/n't/n\00t/g; # leave can't, won't etc untouched |
9b22980b |
832 | s/^\t\s+(.*)/\n$1/gm; # Indented lines ===> new paragraph |
fb87c415 |
833 | s/^(?<!\n\n)\t(.*)/$1/gm; # Not indented lines ===> text |
834 | s{([\'\"])(?=[^\'\"\s]*[./][^\'\"\s]*\1)([^\'\"\s]+)\1}(F<$2>)g; # '.o' |
835 | s{([\'\"])([^\'\"\s]+)\1}(C<$2>)g; # "date" command |
836 | s{\'([A-Za-z_\- *=/]+)\'}(C<$1>)g; # 'ln -s' |
837 | s{ |
838 | (?<! [\w./<\'\"] ) # Only standalone file names |
839 | (?! e \. g \. ) # Not e.g. |
840 | (?! \. \. \. ) # Not ... |
841 | (?! \d ) # Not 5.004 |
a1151a3c |
842 | (?! read/ ) # Not read/write |
843 | (?! etc\. ) # Not etc. |
844 | (?! I/O ) # Not I/O |
845 | ( |
846 | \$ ? # Allow leading $ |
847 | [\w./]* [./] [\w./]* # Require . or / inside |
848 | ) |
849 | (?<! \. (?= [\s)] ) ) # Do not include trailing dot |
fb87c415 |
850 | (?! [\w/] ) # Include all of it |
851 | } |
852 | (F<$1>)xg; # /usr/local |
853 | s/((?<=\s)~\w*)/F<$1>/g; # ~name |
854 | s/(?<![.<\'\"])\b([A-Z_]{2,})\b(?![\'\"])/C<$1>/g; # UNISTD |
855 | s/(?<![.<\'\"])\b(?!the\b)(\w+)\s+macro\b/C<$1> macro/g; # FILE_cnt macro |
856 | s/n[\0]t/n't/g; # undo can't, won't damage |
ebc74a4b |
857 | } |
858 | |
5435c704 |
859 | if ($Opts{glossary}) { |
7701ffb5 |
860 | <GLOS>; # Skip the "DO NOT EDIT" |
861 | <GLOS>; # Skip the preamble |
18f68570 |
862 | while (<GLOS>) { |
863 | process; |
5435c704 |
864 | print CONFIG_POD; |
18f68570 |
865 | } |
fb87c415 |
866 | } |
ebc74a4b |
867 | |
5435c704 |
868 | print CONFIG_POD <<'ENDOFTAIL'; |
ebc74a4b |
869 | |
870 | =back |
871 | |
3c81428c |
872 | =head1 NOTE |
873 | |
874 | This module contains a good example of how to use tie to implement a |
875 | cache and an example of how to make a tied variable readonly to those |
876 | outside of it. |
877 | |
878 | =cut |
a0d0e21e |
879 | |
9193ea20 |
880 | ENDOFTAIL |
a0d0e21e |
881 | |
2d9d8159 |
882 | close(CONFIG_HEAVY); |
a0d0e21e |
883 | close(CONFIG); |
ebc74a4b |
884 | close(GLOS); |
5435c704 |
885 | close(CONFIG_POD); |
a0d0e21e |
886 | |
18f68570 |
887 | # Now create Cross.pm if needed |
5435c704 |
888 | if ($Opts{cross}) { |
18f68570 |
889 | open CROSS, ">lib/Cross.pm" or die "Can not open >lib/Cross.pm: $!"; |
47bcb90d |
890 | my $cross = <<'EOS'; |
891 | # typical invocation: |
892 | # perl -MCross Makefile.PL |
893 | # perl -MCross=wince -V:cc |
894 | package Cross; |
895 | |
896 | sub import { |
897 | my ($package,$platform) = @_; |
898 | unless (defined $platform) { |
899 | # if $platform is not specified, then use last one when |
900 | # 'configpm; was invoked with --cross option |
901 | $platform = '***replace-marker***'; |
902 | } |
903 | @INC = map {/\blib\b/?(do{local $_=$_;s/\blib\b/xlib\/$platform/;$_},$_):($_)} @INC; |
e2a02c1e |
904 | $::Cross::platform = $platform; |
18f68570 |
905 | } |
47bcb90d |
906 | |
18f68570 |
907 | 1; |
908 | EOS |
5435c704 |
909 | $cross =~ s/\*\*\*replace-marker\*\*\*/$Opts{cross}/g; |
47bcb90d |
910 | print CROSS $cross; |
18f68570 |
911 | close CROSS; |
42d1cefd |
912 | unshift(@INC,"xlib/$Opts{cross}"); |
18f68570 |
913 | } |
914 | |
a0d0e21e |
915 | # Now do some simple tests on the Config.pm file we have created |
916 | unshift(@INC,'lib'); |
27da23d5 |
917 | unshift(@INC,'xlib/symbian') if $Opts{cross}; |
5435c704 |
918 | require $Config_PM; |
ae7e4cc1 |
919 | require $Config_heavy; |
a0d0e21e |
920 | import Config; |
921 | |
5435c704 |
922 | die "$0: $Config_PM not valid" |
a02608de |
923 | unless $Config{'PERL_CONFIG_SH'} eq 'true'; |
a0d0e21e |
924 | |
5435c704 |
925 | die "$0: error processing $Config_PM" |
a0d0e21e |
926 | if defined($Config{'an impossible name'}) |
a02608de |
927 | or $Config{'PERL_CONFIG_SH'} ne 'true' # test cache |
a0d0e21e |
928 | ; |
929 | |
5435c704 |
930 | die "$0: error processing $Config_PM" |
a0d0e21e |
931 | if eval '$Config{"cc"} = 1' |
932 | or eval 'delete $Config{"cc"}' |
933 | ; |
934 | |
935 | |
85e6fe83 |
936 | exit 0; |
a8e1d30b |
937 | # Popularity of various entries in %Config, based on a large build and test |
938 | # run of code in the Fotango build system: |
939 | __DATA__ |
940 | path_sep: 8490 |
941 | d_readlink: 7101 |
942 | d_symlink: 7101 |
943 | archlibexp: 4318 |
944 | sitearchexp: 4305 |
945 | sitelibexp: 4305 |
946 | privlibexp: 4163 |
947 | ldlibpthname: 4041 |
948 | libpth: 2134 |
949 | archname: 1591 |
950 | exe_ext: 1256 |
951 | scriptdir: 1155 |
952 | version: 1116 |
953 | useithreads: 1002 |
954 | osvers: 982 |
955 | osname: 851 |
956 | inc_version_list: 783 |
957 | dont_use_nlink: 779 |
958 | intsize: 759 |
959 | usevendorprefix: 642 |
960 | dlsrc: 624 |
961 | cc: 541 |
962 | lib_ext: 520 |
963 | so: 512 |
964 | ld: 501 |
965 | ccdlflags: 500 |
966 | ldflags: 495 |
967 | obj_ext: 495 |
968 | cccdlflags: 493 |
969 | lddlflags: 493 |
970 | ar: 492 |
971 | dlext: 492 |
972 | libc: 492 |
973 | ranlib: 492 |
974 | full_ar: 491 |
975 | vendorarchexp: 491 |
976 | vendorlibexp: 491 |
977 | installman1dir: 489 |
978 | installman3dir: 489 |
979 | installsitebin: 489 |
980 | installsiteman1dir: 489 |
981 | installsiteman3dir: 489 |
982 | installvendorman1dir: 489 |
983 | installvendorman3dir: 489 |
984 | d_flexfnam: 474 |
985 | eunicefix: 360 |
986 | d_link: 347 |
987 | installsitearch: 344 |
988 | installscript: 341 |
989 | installprivlib: 337 |
990 | binexp: 336 |
991 | installarchlib: 336 |
992 | installprefixexp: 336 |
993 | installsitelib: 336 |
994 | installstyle: 336 |
995 | installvendorarch: 336 |
996 | installvendorbin: 336 |
997 | installvendorlib: 336 |
998 | man1ext: 336 |
999 | man3ext: 336 |
1000 | sh: 336 |
1001 | siteprefixexp: 336 |
1002 | installbin: 335 |
1003 | usedl: 332 |
1004 | ccflags: 285 |
1005 | startperl: 232 |
1006 | optimize: 231 |
1007 | usemymalloc: 229 |
1008 | cpprun: 228 |
1009 | sharpbang: 228 |
1010 | perllibs: 225 |
1011 | usesfio: 224 |
1012 | usethreads: 220 |
1013 | perlpath: 218 |
1014 | extensions: 217 |
1015 | usesocks: 208 |
1016 | shellflags: 198 |
1017 | make: 191 |
1018 | d_pwage: 189 |
1019 | d_pwchange: 189 |
1020 | d_pwclass: 189 |
1021 | d_pwcomment: 189 |
1022 | d_pwexpire: 189 |
1023 | d_pwgecos: 189 |
1024 | d_pwpasswd: 189 |
1025 | d_pwquota: 189 |
1026 | gccversion: 189 |
1027 | libs: 186 |
1028 | useshrplib: 186 |
1029 | cppflags: 185 |
1030 | ptrsize: 185 |
1031 | shrpenv: 185 |
1032 | static_ext: 185 |
1033 | use5005threads: 185 |
1034 | uselargefiles: 185 |
1035 | alignbytes: 184 |
1036 | byteorder: 184 |
1037 | ccversion: 184 |
1038 | config_args: 184 |
1039 | cppminus: 184 |