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1 | #!./miniperl -w |
8990e307 |
2 | |
5435c704 |
3 | # commonly used names to put first (and hence lookup fastest) |
4 | my %Common = map {($_,$_)} |
5 | qw(archname osname osvers prefix libs libpth |
6 | dynamic_ext static_ext dlsrc so |
7 | cc ccflags cppflags |
8 | privlibexp archlibexp installprivlib installarchlib |
9 | sharpbang startsh shsharp |
10 | ); |
11 | |
12 | # names of things which may need to have slashes changed to double-colons |
13 | my %Extensions = map {($_,$_)} |
14 | qw(dynamic_ext static_ext extensions known_extensions); |
15 | |
16 | # allowed opts as well as specifies default and initial values |
17 | my %Allowed_Opts = ( |
18 | 'cross' => '', # --cross=PALTFORM - crosscompiling for PLATFORM |
19 | 'glossary' => 1, # --no-glossary - no glossary file inclusion, |
20 | # for compactness |
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21 | ); |
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22 | |
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23 | sub opts { |
24 | # user specified options |
25 | my %given_opts = ( |
26 | # --opt=smth |
27 | (map {/^--([\-_\w]+)=(.*)$/} @ARGV), |
28 | # --opt --no-opt --noopt |
29 | (map {/^no-?(.*)$/i?($1=>0):($_=>1)} map {/^--([\-_\w]+)$/} @ARGV), |
30 | ); |
31 | |
32 | my %opts = (%Allowed_Opts, %given_opts); |
33 | |
34 | for my $opt (grep {!exists $Allowed_Opts{$_}} keys %given_opts) { |
35 | die "option '$opt' is not recognized"; |
36 | } |
37 | @ARGV = grep {!/^--/} @ARGV; |
38 | |
39 | return %opts; |
40 | } |
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41 | |
5435c704 |
42 | |
43 | my %Opts = opts(); |
44 | |
45 | my $Config_PM; |
46 | my $Glossary = $ARGV[1] || 'Porting/Glossary'; |
47 | |
48 | if ($Opts{cross}) { |
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49 | # creating cross-platform config file |
50 | mkdir "xlib"; |
5435c704 |
51 | mkdir "xlib/$Opts{cross}"; |
52 | $Config_PM = $ARGV[0] || "xlib/$Opts{cross}/Config.pm"; |
18f68570 |
53 | } |
54 | else { |
5435c704 |
55 | $Config_PM = $ARGV[0] || 'lib/Config.pm'; |
18f68570 |
56 | } |
57 | |
8990e307 |
58 | |
5435c704 |
59 | open CONFIG, ">$Config_PM" or die "Can't open $Config_PM: $!\n"; |
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60 | |
5435c704 |
61 | my $myver = sprintf "v%vd", $^V; |
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62 | |
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63 | printf CONFIG <<'ENDOFBEG', ($myver) x 3; |
64 | # This file was created by configpm when Perl was built. Any changes |
65 | # made to this file will be lost the next time perl is built. |
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66 | |
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67 | package Config; |
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68 | use Exporter (); |
5435c704 |
69 | @EXPORT = qw(%%Config); |
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70 | @EXPORT_OK = qw(myconfig config_sh config_vars); |
71 | |
72 | # Define our own import method to avoid pulling in the full Exporter: |
73 | sub import { |
74 | my $pkg = shift; |
75 | @_ = @EXPORT unless @_; |
5435c704 |
76 | |
77 | my @func = grep {$_ ne '%%Config'} @_; |
4365a961 |
78 | local $Exporter::ExportLevel = 1; |
e3d0cac0 |
79 | Exporter::import('Config', @func) if @func; |
5435c704 |
80 | |
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81 | return if @func == @_; |
5435c704 |
82 | |
e3d0cac0 |
83 | my $callpkg = caller(0); |
5435c704 |
84 | *{"$callpkg\::Config"} = \%%Config; |
e3d0cac0 |
85 | } |
86 | |
5435c704 |
87 | die "Perl lib version (%s) doesn't match executable version ($])" |
88 | unless $^V; |
de98c553 |
89 | |
5435c704 |
90 | $^V eq %s |
91 | or die "Perl lib version (%s) doesn't match executable version (" . |
92 | (sprintf "v%vd",$^V) . ")"; |
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93 | |
8990e307 |
94 | ENDOFBEG |
95 | |
16d20bd9 |
96 | |
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97 | my @non_v = (); |
98 | my @v_fast = (); |
99 | my %v_fast = (); |
100 | my @v_others = (); |
101 | my $in_v = 0; |
102 | my %Data = (); |
103 | |
104 | # This is somewhat grim, but I want the code for parsing config.sh here and |
105 | # now so that I can expand $Config{ivsize} and $Config{ivtype} |
106 | |
107 | my $fetch_string = <<'EOT'; |
108 | |
109 | # Search for it in the big string |
110 | sub fetch_string { |
111 | my($self, $key) = @_; |
112 | |
113 | my $quote_type = "'"; |
114 | my $marker = "$key="; |
115 | |
116 | # Check for the common case, ' delimeted |
117 | my $start = index($Config_SH, "\n$marker$quote_type"); |
118 | # If that failed, check for " delimited |
119 | if ($start == -1) { |
120 | $quote_type = '"'; |
121 | $start = index($Config_SH, "\n$marker$quote_type"); |
122 | } |
123 | return undef if ( ($start == -1) && # in case it's first |
124 | (substr($Config_SH, 0, length($marker)) ne $marker) ); |
125 | if ($start == -1) { |
126 | # It's the very first thing we found. Skip $start forward |
127 | # and figure out the quote mark after the =. |
128 | $start = length($marker) + 1; |
129 | $quote_type = substr($Config_SH, $start - 1, 1); |
130 | } |
131 | else { |
132 | $start += length($marker) + 2; |
133 | } |
134 | |
135 | my $value = substr($Config_SH, $start, |
136 | index($Config_SH, "$quote_type\n", $start) - $start); |
137 | |
138 | # If we had a double-quote, we'd better eval it so escape |
139 | # sequences and such can be interpolated. Since the incoming |
140 | # value is supposed to follow shell rules and not perl rules, |
141 | # we escape any perl variable markers |
142 | if ($quote_type eq '"') { |
143 | $value =~ s/\$/\\\$/g; |
144 | $value =~ s/\@/\\\@/g; |
145 | eval "\$value = \"$value\""; |
146 | } |
147 | |
148 | # So we can say "if $Config{'foo'}". |
149 | $value = undef if $value eq 'undef'; |
150 | $self->{$key} = $value; # cache it |
151 | } |
152 | EOT |
153 | |
154 | eval $fetch_string; |
155 | die if $@; |
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156 | |
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157 | open(CONFIG_SH, 'config.sh') || die "Can't open config.sh: $!"; |
158 | while (<CONFIG_SH>) { |
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159 | next if m:^#!/bin/sh:; |
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160 | |
a02608de |
161 | # Catch PERL_CONFIG_SH=true and PERL_VERSION=n line from Configure. |
5435c704 |
162 | my($k, $v) = s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/; |
163 | |
2000072c |
164 | # grandfather PATCHLEVEL and SUBVERSION and CONFIG |
cceca5ed |
165 | if ($k) { |
166 | if ($k eq 'PERL_VERSION') { |
167 | push @v_others, "PATCHLEVEL='$v'\n"; |
168 | } |
169 | elsif ($k eq 'PERL_SUBVERSION') { |
170 | push @v_others, "SUBVERSION='$v'\n"; |
171 | } |
a02608de |
172 | elsif ($k eq 'PERL_CONFIG_SH') { |
2000072c |
173 | push @v_others, "CONFIG='$v'\n"; |
174 | } |
cceca5ed |
175 | } |
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176 | |
435ec615 |
177 | # We can delimit things in config.sh with either ' or ". |
178 | unless ($in_v or m/^(\w+)=(['"])(.*\n)/){ |
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179 | push(@non_v, "#$_"); # not a name='value' line |
180 | next; |
181 | } |
435ec615 |
182 | $quote = $2; |
5435c704 |
183 | if ($in_v) { |
184 | $val .= $_; |
185 | } |
186 | else { |
187 | ($name,$val) = ($1,$3); |
188 | } |
435ec615 |
189 | $in_v = $val !~ /$quote\n/; |
44a8e56a |
190 | next if $in_v; |
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191 | |
5435c704 |
192 | s,/,::,g if $Extensions{$name}; |
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193 | |
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194 | $val =~ s/$quote\n?\z//; |
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195 | |
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196 | my $line = "$name=$quote$val$quote\n"; |
197 | if (!$Common{$name}){ |
198 | push(@v_others, $line); |
199 | } |
200 | else { |
201 | push(@v_fast, $line); |
202 | $v_fast{$name} = "'$name' => $quote$val$quote"; |
203 | } |
204 | } |
205 | close CONFIG_SH; |
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206 | |
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207 | print CONFIG @non_v, "\n"; |
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208 | |
5435c704 |
209 | # copy config summary format from the myconfig.SH script |
210 | print CONFIG "my \$summary = <<'!END!';\n"; |
3b5ca523 |
211 | open(MYCONFIG,"<myconfig.SH") || die "open myconfig.SH failed: $!"; |
54310121 |
212 | 1 while defined($_ = <MYCONFIG>) && !/^Summary of/; |
213 | do { print CONFIG $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/; |
3c81428c |
214 | close(MYCONFIG); |
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215 | |
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216 | print CONFIG "\n!END!\n", <<'EOT'; |
217 | my $summary_expanded = 0; |
218 | |
219 | sub myconfig { |
220 | return $summary if $summary_expanded; |
ca8cad5c |
221 | $summary =~ s{\$(\w+)} |
222 | { my $c = $Config{$1}; defined($c) ? $c : 'undef' }ge; |
3c81428c |
223 | $summary_expanded = 1; |
224 | $summary; |
225 | } |
5435c704 |
226 | |
227 | our $Config_SH : shared = <<'!END!'; |
3c81428c |
228 | EOT |
229 | |
5435c704 |
230 | print CONFIG join("", @v_fast, sort @v_others); |
231 | |
232 | print CONFIG "!END!\n", $fetch_string; |
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233 | |
234 | print CONFIG <<'ENDOFEND'; |
235 | |
5435c704 |
236 | sub fetch_virtual { |
237 | my($self, $key) = @_; |
238 | |
239 | my $value; |
240 | |
241 | if ($key =~ /^((?:cc|ld)flags|libs(?:wanted)?)_nolargefiles/) { |
4b2ec495 |
242 | # These are purely virtual, they do not exist, but need to |
243 | # be computed on demand for largefile-incapable extensions. |
5435c704 |
244 | my $new_key = "${1}_uselargefiles"; |
4b2ec495 |
245 | $value = $Config{$1}; |
5435c704 |
246 | my $withlargefiles = $Config{$new_key}; |
247 | if ($new_key =~ /^(?:cc|ld)flags_/) { |
4b2ec495 |
248 | $value =~ s/\Q$withlargefiles\E\b//; |
5435c704 |
249 | } elsif ($new_key =~ /^libs/) { |
45c9e83b |
250 | my @lflibswanted = split(' ', $Config{libswanted_uselargefiles}); |
4b2ec495 |
251 | if (@lflibswanted) { |
252 | my %lflibswanted; |
253 | @lflibswanted{@lflibswanted} = (); |
5435c704 |
254 | if ($new_key =~ /^libs_/) { |
4b2ec495 |
255 | my @libs = grep { /^-l(.+)/ && |
256 | not exists $lflibswanted{$1} } |
257 | split(' ', $Config{libs}); |
258 | $Config{libs} = join(' ', @libs); |
5435c704 |
259 | } elsif ($new_key =~ /^libswanted_/) { |
4b2ec495 |
260 | my @libswanted = grep { not exists $lflibswanted{$_} } |
261 | split(' ', $Config{libswanted}); |
262 | $Config{libswanted} = join(' ', @libswanted); |
263 | } |
264 | } |
265 | } |
435ec615 |
266 | } |
5435c704 |
267 | |
268 | $self->{$key} = $value; |
269 | } |
270 | |
271 | sub FETCH { |
272 | my($self, $key) = @_; |
273 | |
274 | # check for cached value (which may be undef so we use exists not defined) |
275 | return $self->{$key} if exists $self->{$key}; |
276 | |
277 | $self->fetch_string($key); |
278 | return $self->{$key} if exists $self->{$key}; |
279 | $self->fetch_virtual($key); |
280 | |
281 | # Might not exist, in which undef is correct. |
282 | return $self->{$key}; |
a0d0e21e |
283 | } |
284 | |
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285 | my $prevpos = 0; |
286 | |
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287 | sub FIRSTKEY { |
288 | $prevpos = 0; |
5435c704 |
289 | substr($Config_SH, 0, index($Config_SH, '=') ); |
a0d0e21e |
290 | } |
291 | |
292 | sub NEXTKEY { |
435ec615 |
293 | # Find out how the current key's quoted so we can skip to its end. |
5435c704 |
294 | my $quote = substr($Config_SH, index($Config_SH, "=", $prevpos)+1, 1); |
295 | my $pos = index($Config_SH, qq($quote\n), $prevpos) + 2; |
296 | my $len = index($Config_SH, "=", $pos) - $pos; |
a0d0e21e |
297 | $prevpos = $pos; |
5435c704 |
298 | $len > 0 ? substr($Config_SH, $pos, $len) : undef; |
85e6fe83 |
299 | } |
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300 | |
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301 | sub EXISTS { |
5435c704 |
302 | return 1 if exists($_[0]->{$_[1]}); |
303 | |
304 | return(index($Config_SH, "\n$_[1]='") != -1 or |
305 | substr($Config_SH, 0, length($_[1])+2) eq "$_[1]='" or |
306 | index($Config_SH, "\n$_[1]=\"") != -1 or |
307 | substr($Config_SH, 0, length($_[1])+2) eq "$_[1]=\"" or |
308 | $_[1] =~ /^(?:(?:cc|ld)flags|libs(?:wanted)?)_nolargefiles$/ |
309 | ); |
a0d0e21e |
310 | } |
311 | |
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312 | sub STORE { die "\%Config::Config is read-only\n" } |
5435c704 |
313 | *DELETE = \&STORE; |
314 | *CLEAR = \&STORE; |
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315 | |
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316 | |
317 | sub config_sh { |
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318 | $Config_SH |
748a9306 |
319 | } |
9193ea20 |
320 | |
321 | sub config_re { |
322 | my $re = shift; |
5435c704 |
323 | my @matches = grep /^$re=/, split /^/, $Config_SH; |
9193ea20 |
324 | @matches ? (print @matches) : print "$re: not found\n"; |
325 | } |
326 | |
3c81428c |
327 | sub config_vars { |
328 | foreach(@_){ |
9193ea20 |
329 | config_re($_), next if /\W/; |
3c81428c |
330 | my $v=(exists $Config{$_}) ? $Config{$_} : 'UNKNOWN'; |
331 | $v='undef' unless defined $v; |
332 | print "$_='$v';\n"; |
333 | } |
334 | } |
335 | |
9193ea20 |
336 | ENDOFEND |
337 | |
338 | if ($^O eq 'os2') { |
339 | print CONFIG <<'ENDOFSET'; |
340 | my %preconfig; |
341 | if ($OS2::is_aout) { |
5435c704 |
342 | my ($value, $v) = $Config_SH =~ m/^used_aout='(.*)'\s*$/m; |
9193ea20 |
343 | for (split ' ', $value) { |
5435c704 |
344 | ($v) = $Config_SH =~ m/^aout_$_='(.*)'\s*$/m; |
9193ea20 |
345 | $preconfig{$_} = $v eq 'undef' ? undef : $v; |
346 | } |
347 | } |
764df951 |
348 | $preconfig{d_fork} = undef unless $OS2::can_fork; # Some funny cases can't |
9193ea20 |
349 | sub TIEHASH { bless {%preconfig} } |
350 | ENDOFSET |
30500b05 |
351 | # Extract the name of the DLL from the makefile to avoid duplication |
352 | my ($f) = grep -r, qw(GNUMakefile Makefile); |
353 | my $dll; |
354 | if (open my $fh, '<', $f) { |
355 | while (<$fh>) { |
356 | $dll = $1, last if /^PERL_DLL_BASE\s*=\s*(\S*)\s*$/; |
357 | } |
358 | } |
359 | print CONFIG <<ENDOFSET if $dll; |
360 | \$preconfig{dll_name} = '$dll'; |
361 | ENDOFSET |
9193ea20 |
362 | } else { |
363 | print CONFIG <<'ENDOFSET'; |
5435c704 |
364 | sub TIEHASH { |
365 | bless $_[1], $_[0]; |
366 | } |
9193ea20 |
367 | ENDOFSET |
368 | } |
369 | |
5435c704 |
370 | |
371 | # Calculation for the keys for byteorder |
372 | # This is somewhat grim, but I need to run fetch_string here. |
373 | our $Config_SH = join "\n", @v_fast, @v_others; |
374 | |
375 | my $t = fetch_string ({}, 'ivtype'); |
376 | my $s = fetch_string ({}, 'ivsize'); |
377 | |
378 | # byteorder does exist on its own but we overlay a virtual |
379 | # dynamically recomputed value. |
380 | |
381 | # However, ivtype and ivsize will not vary for sane fat binaries |
382 | |
383 | my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I'; |
384 | |
385 | my $byteorder_code; |
386 | if ($s == 4 || $s == 8) { |
387 | |
388 | my $list = join ',', reverse(2..$s); |
389 | my $format = 'a'x$s; |
390 | $byteorder_code = <<"EOT"; |
391 | my \$i = 0; |
392 | foreach my \$c ($list) { \$i |= ord(\$c); \$i <<= 8 } |
393 | \$i |= ord(1); |
394 | my \$value = join('', unpack('$format', pack('$f', \$i))); |
395 | EOT |
396 | } else { |
397 | $byteorder_code = "\$value = '?'x$s;\n"; |
398 | } |
399 | |
400 | my $fast_config = join '', map { " $_,\n" } |
401 | values (%v_fast), 'byteorder => $value' ; |
402 | |
403 | print CONFIG sprintf <<'ENDOFTIE', $byteorder_code, $fast_config; |
9193ea20 |
404 | |
fb73857a |
405 | # avoid Config..Exporter..UNIVERSAL search for DESTROY then AUTOLOAD |
406 | sub DESTROY { } |
407 | |
5435c704 |
408 | %s |
409 | |
410 | tie %%Config, 'Config', { |
411 | %s |
412 | }; |
9193ea20 |
413 | |
3c81428c |
414 | 1; |
5435c704 |
415 | ENDOFTIE |
416 | |
748a9306 |
417 | |
5435c704 |
418 | open(CONFIG_POD, ">lib/Config.pod") or die "Can't open lib/Config.pod: $!"; |
419 | print CONFIG_POD <<'ENDOFTAIL'; |
3c81428c |
420 | =head1 NAME |
a0d0e21e |
421 | |
3c81428c |
422 | Config - access Perl configuration information |
423 | |
424 | =head1 SYNOPSIS |
425 | |
426 | use Config; |
427 | if ($Config{'cc'} =~ /gcc/) { |
428 | print "built by gcc\n"; |
429 | } |
430 | |
431 | use Config qw(myconfig config_sh config_vars); |
432 | |
433 | print myconfig(); |
434 | |
435 | print config_sh(); |
436 | |
437 | config_vars(qw(osname archname)); |
438 | |
439 | |
440 | =head1 DESCRIPTION |
441 | |
442 | The Config module contains all the information that was available to |
443 | the C<Configure> program at Perl build time (over 900 values). |
444 | |
445 | Shell variables from the F<config.sh> file (written by Configure) are |
446 | stored in the readonly-variable C<%Config>, indexed by their names. |
447 | |
448 | Values stored in config.sh as 'undef' are returned as undefined |
1fef88e7 |
449 | values. The perl C<exists> function can be used to check if a |
3c81428c |
450 | named variable exists. |
451 | |
452 | =over 4 |
453 | |
454 | =item myconfig() |
455 | |
456 | Returns a textual summary of the major perl configuration values. |
457 | See also C<-V> in L<perlrun/Switches>. |
458 | |
459 | =item config_sh() |
460 | |
461 | Returns the entire perl configuration information in the form of the |
462 | original config.sh shell variable assignment script. |
463 | |
464 | =item config_vars(@names) |
465 | |
466 | Prints to STDOUT the values of the named configuration variable. Each is |
467 | printed on a separate line in the form: |
468 | |
469 | name='value'; |
470 | |
471 | Names which are unknown are output as C<name='UNKNOWN';>. |
472 | See also C<-V:name> in L<perlrun/Switches>. |
473 | |
474 | =back |
475 | |
476 | =head1 EXAMPLE |
477 | |
478 | Here's a more sophisticated example of using %Config: |
479 | |
480 | use Config; |
743c51bc |
481 | use strict; |
482 | |
483 | my %sig_num; |
484 | my @sig_name; |
485 | unless($Config{sig_name} && $Config{sig_num}) { |
486 | die "No sigs?"; |
487 | } else { |
488 | my @names = split ' ', $Config{sig_name}; |
489 | @sig_num{@names} = split ' ', $Config{sig_num}; |
490 | foreach (@names) { |
491 | $sig_name[$sig_num{$_}] ||= $_; |
492 | } |
493 | } |
3c81428c |
494 | |
743c51bc |
495 | print "signal #17 = $sig_name[17]\n"; |
496 | if ($sig_num{ALRM}) { |
497 | print "SIGALRM is $sig_num{ALRM}\n"; |
3c81428c |
498 | } |
499 | |
500 | =head1 WARNING |
501 | |
502 | Because this information is not stored within the perl executable |
503 | itself it is possible (but unlikely) that the information does not |
504 | relate to the actual perl binary which is being used to access it. |
505 | |
506 | The Config module is installed into the architecture and version |
507 | specific library directory ($Config{installarchlib}) and it checks the |
508 | perl version number when loaded. |
509 | |
435ec615 |
510 | The values stored in config.sh may be either single-quoted or |
511 | double-quoted. Double-quoted strings are handy for those cases where you |
512 | need to include escape sequences in the strings. To avoid runtime variable |
513 | interpolation, any C<$> and C<@> characters are replaced by C<\$> and |
514 | C<\@>, respectively. This isn't foolproof, of course, so don't embed C<\$> |
515 | or C<\@> in double-quoted strings unless you're willing to deal with the |
516 | consequences. (The slashes will end up escaped and the C<$> or C<@> will |
517 | trigger variable interpolation) |
518 | |
ebc74a4b |
519 | =head1 GLOSSARY |
520 | |
521 | Most C<Config> variables are determined by the C<Configure> script |
522 | on platforms supported by it (which is most UNIX platforms). Some |
523 | platforms have custom-made C<Config> variables, and may thus not have |
524 | some of the variables described below, or may have extraneous variables |
525 | specific to that particular port. See the port specific documentation |
526 | in such cases. |
527 | |
ebc74a4b |
528 | ENDOFTAIL |
529 | |
5435c704 |
530 | if ($Opts{glossary}) { |
531 | open(GLOS, "<$Glossary") or die "Can't open $Glossary: $!"; |
18f68570 |
532 | } |
fb87c415 |
533 | %seen = (); |
534 | $text = 0; |
535 | $/ = ''; |
536 | |
537 | sub process { |
aade5aff |
538 | if (s/\A(\w*)\s+\(([\w.]+)\):\s*\n(\t?)/=item C<$1>\n\nFrom F<$2>:\n\n/m) { |
539 | my $c = substr $1, 0, 1; |
540 | unless ($seen{$c}++) { |
5435c704 |
541 | print CONFIG_POD <<EOF if $text; |
fb87c415 |
542 | =back |
ebc74a4b |
543 | |
fb87c415 |
544 | EOF |
5435c704 |
545 | print CONFIG_POD <<EOF; |
fb87c415 |
546 | =head2 $c |
547 | |
bbc7dcd2 |
548 | =over 4 |
fb87c415 |
549 | |
550 | EOF |
aade5aff |
551 | $text = 1; |
552 | } |
553 | } |
554 | elsif (!$text || !/\A\t/) { |
555 | warn "Expected a Configure variable header", |
556 | ($text ? " or another paragraph of description" : () ); |
fb87c415 |
557 | } |
558 | s/n't/n\00t/g; # leave can't, won't etc untouched |
9b22980b |
559 | s/^\t\s+(.*)/\n$1/gm; # Indented lines ===> new paragraph |
fb87c415 |
560 | s/^(?<!\n\n)\t(.*)/$1/gm; # Not indented lines ===> text |
561 | s{([\'\"])(?=[^\'\"\s]*[./][^\'\"\s]*\1)([^\'\"\s]+)\1}(F<$2>)g; # '.o' |
562 | s{([\'\"])([^\'\"\s]+)\1}(C<$2>)g; # "date" command |
563 | s{\'([A-Za-z_\- *=/]+)\'}(C<$1>)g; # 'ln -s' |
564 | s{ |
565 | (?<! [\w./<\'\"] ) # Only standalone file names |
566 | (?! e \. g \. ) # Not e.g. |
567 | (?! \. \. \. ) # Not ... |
568 | (?! \d ) # Not 5.004 |
a1151a3c |
569 | (?! read/ ) # Not read/write |
570 | (?! etc\. ) # Not etc. |
571 | (?! I/O ) # Not I/O |
572 | ( |
573 | \$ ? # Allow leading $ |
574 | [\w./]* [./] [\w./]* # Require . or / inside |
575 | ) |
576 | (?<! \. (?= [\s)] ) ) # Do not include trailing dot |
fb87c415 |
577 | (?! [\w/] ) # Include all of it |
578 | } |
579 | (F<$1>)xg; # /usr/local |
580 | s/((?<=\s)~\w*)/F<$1>/g; # ~name |
581 | s/(?<![.<\'\"])\b([A-Z_]{2,})\b(?![\'\"])/C<$1>/g; # UNISTD |
582 | s/(?<![.<\'\"])\b(?!the\b)(\w+)\s+macro\b/C<$1> macro/g; # FILE_cnt macro |
583 | s/n[\0]t/n't/g; # undo can't, won't damage |
ebc74a4b |
584 | } |
585 | |
5435c704 |
586 | if ($Opts{glossary}) { |
7701ffb5 |
587 | <GLOS>; # Skip the "DO NOT EDIT" |
588 | <GLOS>; # Skip the preamble |
18f68570 |
589 | while (<GLOS>) { |
590 | process; |
5435c704 |
591 | print CONFIG_POD; |
18f68570 |
592 | } |
fb87c415 |
593 | } |
ebc74a4b |
594 | |
5435c704 |
595 | print CONFIG_POD <<'ENDOFTAIL'; |
ebc74a4b |
596 | |
597 | =back |
598 | |
3c81428c |
599 | =head1 NOTE |
600 | |
601 | This module contains a good example of how to use tie to implement a |
602 | cache and an example of how to make a tied variable readonly to those |
603 | outside of it. |
604 | |
605 | =cut |
a0d0e21e |
606 | |
9193ea20 |
607 | ENDOFTAIL |
a0d0e21e |
608 | |
609 | close(CONFIG); |
ebc74a4b |
610 | close(GLOS); |
5435c704 |
611 | close(CONFIG_POD); |
a0d0e21e |
612 | |
18f68570 |
613 | # Now create Cross.pm if needed |
5435c704 |
614 | if ($Opts{cross}) { |
18f68570 |
615 | open CROSS, ">lib/Cross.pm" or die "Can not open >lib/Cross.pm: $!"; |
47bcb90d |
616 | my $cross = <<'EOS'; |
617 | # typical invocation: |
618 | # perl -MCross Makefile.PL |
619 | # perl -MCross=wince -V:cc |
620 | package Cross; |
621 | |
622 | sub import { |
623 | my ($package,$platform) = @_; |
624 | unless (defined $platform) { |
625 | # if $platform is not specified, then use last one when |
626 | # 'configpm; was invoked with --cross option |
627 | $platform = '***replace-marker***'; |
628 | } |
629 | @INC = map {/\blib\b/?(do{local $_=$_;s/\blib\b/xlib\/$platform/;$_},$_):($_)} @INC; |
e2a02c1e |
630 | $::Cross::platform = $platform; |
18f68570 |
631 | } |
47bcb90d |
632 | |
18f68570 |
633 | 1; |
634 | EOS |
5435c704 |
635 | $cross =~ s/\*\*\*replace-marker\*\*\*/$Opts{cross}/g; |
47bcb90d |
636 | print CROSS $cross; |
18f68570 |
637 | close CROSS; |
638 | } |
639 | |
a0d0e21e |
640 | # Now do some simple tests on the Config.pm file we have created |
641 | unshift(@INC,'lib'); |
5435c704 |
642 | require $Config_PM; |
a0d0e21e |
643 | import Config; |
644 | |
5435c704 |
645 | die "$0: $Config_PM not valid" |
a02608de |
646 | unless $Config{'PERL_CONFIG_SH'} eq 'true'; |
a0d0e21e |
647 | |
5435c704 |
648 | die "$0: error processing $Config_PM" |
a0d0e21e |
649 | if defined($Config{'an impossible name'}) |
a02608de |
650 | or $Config{'PERL_CONFIG_SH'} ne 'true' # test cache |
a0d0e21e |
651 | ; |
652 | |
5435c704 |
653 | die "$0: error processing $Config_PM" |
a0d0e21e |
654 | if eval '$Config{"cc"} = 1' |
655 | or eval 'delete $Config{"cc"}' |
656 | ; |
657 | |
658 | |
85e6fe83 |
659 | exit 0; |