/usr/share/perl5/Module/Install/Inline.pm is in libmodule-install-perl 1.19-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | package Module::Install::Inline;
use strict;
use Module::Install::Base ();
use vars qw{$VERSION @ISA $ISCORE};
BEGIN {
	$VERSION = '1.19';
	@ISA     = 'Module::Install::Base';
	$ISCORE  = 1;
}
sub Inline { $_[0] }
sub write {
    my $self = shift;
    my $name = $self->module_name || $self->name
        or die "Please set name() before calling &Inline->write\n";
    $name =~ s/-/::/g;
    my $object = (split(/::/, $name))[-1] or return;
    my $version = $self->version
        or die "Please set version() or version_from() before calling &Inline->write\n";
    $version =~ /^\d\.\d\d$/ or die <<"END_MESSAGE";
Invalid version '$version' for $name.
Must be of the form '#.##'. (For instance '1.23')
END_MESSAGE
    $self->clean_files('_Inline', "$object.inl");
    $self->build_requires('Inline' => 0.44); # XXX: check for existing? yagni?
    my $class = ref($self);
    my $prefix = $self->_top->{prefix};
    $self->postamble(<<"MAKEFILE");
# --- $class section:
.SUFFIXES: .pm .inl
.pm.inl:
\t\$(PERL) -I$prefix "-Mblib" "-MInline=NOISY,_INSTALL_" "-M$name" -e1 $version \$(INST_ARCHLIB)
pure_all :: $object.inl
MAKEFILE
    $self->Makefile->write;
}
1;
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