my $version = ${"${pkg}::VERSION"};
if (!$version or $version < $wanted) {
$version ||= "(undef)";
- my $file = $INC{"$pkg.pm"};
+ # %INC contains slashes, but $pkg contains double-colons.
+ my $file = (map {s,::,/,g; $INC{$_}} "$pkg.pm")[0];
$file &&= " ($file)";
require Carp;
Carp::croak("$pkg $wanted required--this is only version $version$file")