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4633a7c4 LW |
1 | #!/usr/local/bin/perl |
2 | ||
1a67fee7 HS |
3 | # This is for generating the perldoc executable. |
4 | # It may eventually be expanded to generate many executables, as | |
5 | # explained in the preface of /Programming Perl/ 3e. | |
6 | ||
7 | require 5; | |
8 | use strict; | |
4633a7c4 LW |
9 | use Config; |
10 | use File::Basename qw(&basename &dirname); | |
8a5546a1 | 11 | use Cwd; |
4633a7c4 | 12 | |
85880f03 | 13 | # List explicitly here the variables you want Configure to |
14 | # generate. Metaconfig only looks for shell variables, so you | |
15 | # have to mention them as if they were shell variables, not | |
16 | # %Config entries. Thus you write | |
4633a7c4 | 17 | # $startperl |
85880f03 | 18 | # to ensure Configure will look for $Config{startperl}. |
4633a7c4 LW |
19 | |
20 | # This forces PL files to create target in same directory as PL file. | |
21 | # This is so that make depend always knows where to find PL derivatives. | |
1a67fee7 HS |
22 | |
23 | my $origdir = cwd; | |
44a8e56a | 24 | chdir dirname($0); |
1a67fee7 HS |
25 | my $file = basename($0, '.PL'); |
26 | my $file_shortname = $file; # should be like "perldoc", maybe "perlsyn", etc. | |
27 | warn "How odd, I'm going to generate $file_shortname?!" | |
28 | unless $file_shortname =~ m/^\w+$/; | |
29 | ||
774d564b | 30 | $file .= '.com' if $^O eq 'VMS'; |
4633a7c4 LW |
31 | |
32 | open OUT,">$file" or die "Can't create $file: $!"; | |
33 | ||
1a67fee7 | 34 | print "Extracting \"$file\" (with variable substitutions)\n"; |
4633a7c4 LW |
35 | |
36 | # In this section, perl variables will be expanded during extraction. | |
37 | # You can use $Config{...} to use Configure variables. | |
38 | ||
85880f03 | 39 | print OUT <<"!GROK!THIS!"; |
5f05dabc | 40 | $Config{startperl} |
41 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' | |
c5ae3962 | 42 | if 0; |
55497cff | 43 | |
1a67fee7 | 44 | # This "$file" file was generated by "$0" |
ed6d8ea1 | 45 | |
1a67fee7 | 46 | require 5; |
1a67fee7 | 47 | BEGIN { \$^W = 1 if \$ENV{'PERLDOCDEBUG'} } |
537c2f98 | 48 | use Pod::Perldoc; |
1a67fee7 | 49 | exit( Pod::Perldoc->run() ); |
8167b455 | 50 | |
4633a7c4 LW |
51 | !GROK!THIS! |
52 | ||
4633a7c4 LW |
53 | |
54 | close OUT or die "Can't close $file: $!"; | |
55 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
56 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; | |
8a5546a1 | 57 | chdir $origdir; |
1a67fee7 | 58 |