lib.pm 2.2 KB

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  1. package lib;
  2. # THIS FILE IS AUTOMATICALLY GENERATED FROM lib_pm.PL.
  3. # ANY CHANGES TO THIS FILE WILL BE OVERWRITTEN BY THE NEXT PERL BUILD.
  4. use Config;
  5. use strict;
  6. my $archname = $Config{archname};
  7. my $version = $Config{version};
  8. my @inc_version_list = reverse split / /, $Config{inc_version_list};
  9. our @ORIG_INC = @INC; # take a handy copy of 'original' value
  10. our $VERSION = '0.65';
  11. sub import {
  12. shift;
  13. my %names;
  14. foreach (reverse @_) {
  15. my $path = $_; # we'll be modifying it, so break the alias
  16. if ($path eq '') {
  17. require Carp;
  18. Carp::carp("Empty compile time value given to use lib");
  19. }
  20. if ($path !~ /\.par$/i && -e $path && ! -d _) {
  21. require Carp;
  22. Carp::carp("Parameter to use lib must be directory, not file");
  23. }
  24. unshift(@INC, $path);
  25. # Add any previous version directories we found at configure time
  26. foreach my $incver (@inc_version_list)
  27. {
  28. my $dir = "$path/$incver";
  29. unshift(@INC, $dir) if -d $dir;
  30. }
  31. # Put a corresponding archlib directory in front of $path if it
  32. # looks like $path has an archlib directory below it.
  33. my($arch_auto_dir, $arch_dir, $version_dir, $version_arch_dir)
  34. = _get_dirs($path);
  35. unshift(@INC, $arch_dir) if -d $arch_auto_dir;
  36. unshift(@INC, $version_dir) if -d $version_dir;
  37. unshift(@INC, $version_arch_dir) if -d $version_arch_dir;
  38. }
  39. # remove trailing duplicates
  40. @INC = grep { ++$names{$_} == 1 } @INC;
  41. return;
  42. }
  43. sub unimport {
  44. shift;
  45. my %names;
  46. foreach my $path (@_) {
  47. my($arch_auto_dir, $arch_dir, $version_dir, $version_arch_dir)
  48. = _get_dirs($path);
  49. ++$names{$path};
  50. ++$names{$arch_dir} if -d $arch_auto_dir;
  51. ++$names{$version_dir} if -d $version_dir;
  52. ++$names{$version_arch_dir} if -d $version_arch_dir;
  53. }
  54. # Remove ALL instances of each named directory.
  55. @INC = grep { !exists $names{$_} } @INC;
  56. return;
  57. }
  58. sub _get_dirs {
  59. my($dir) = @_;
  60. my($arch_auto_dir, $arch_dir, $version_dir, $version_arch_dir);
  61. $arch_auto_dir = "$dir/$archname/auto";
  62. $arch_dir = "$dir/$archname";
  63. $version_dir = "$dir/$version";
  64. $version_arch_dir = "$dir/$version/$archname";
  65. return($arch_auto_dir, $arch_dir, $version_dir, $version_arch_dir);
  66. }
  67. 1;
  68. __END__