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