| 1 | #!perl -w |
| 2 | use strict; |
| 3 | |
| 4 | package deprecate; |
| 5 | use Config; |
| 6 | use Carp; |
| 7 | use warnings; |
| 8 | our $VERSION = 0.01; |
| 9 | |
| 10 | sub import { |
| 11 | my ($package, $file, $line) = caller; |
| 12 | my $expect_leaf = "$package.pm"; |
| 13 | $expect_leaf =~ s!::!/!g; |
| 14 | |
| 15 | foreach my $pair ([qw(sitearchexp archlibexp)], |
| 16 | [qw(sitelibexp privlibexp)]) { |
| 17 | my ($site, $priv) = @Config{@$pair}; |
| 18 | # Just in case anyone managed to configure with trailing /s |
| 19 | s!/*$!!g foreach $site, $priv; |
| 20 | |
| 21 | next if $site eq $priv; |
| 22 | if ("$priv/$expect_leaf" eq $file) { |
| 23 | # This is fragile, because it |
| 24 | # 1: depends on the number of call stacks in if.pm |
| 25 | # 2: is directly poking in the internals of warnings.pm |
| 26 | my ($call_file, $call_line, $callers_bitmask) = (caller 3)[1,2,9]; |
| 27 | |
| 28 | if (defined $callers_bitmask |
| 29 | && (vec($callers_bitmask, $warnings::Offsets{deprecated}, 1) |
| 30 | || vec($callers_bitmask, $warnings::Offsets{all}, 1))) { |
| 31 | warn <<"EOM"; |
| 32 | $package will be removed from the Perl core distribution in the next major release. Please install it from CPAN. It is being used at $call_file line $call_line |
| 33 | EOM |
| 34 | } |
| 35 | return; |
| 36 | } |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | 1; |