Also, require does that automatically. The manpage has this snippet:
Has semantics similar to the following subroutine:
sub require {
my($filename) = @_;
return 1 if $INC{$filename};
my($realfilename,$result);
ITER: {
foreach $prefix (@INC) {
$realfilename = "$prefix/$filename";
if (-f $realfilename) {
$INC{$filename} = $realfilename;
$result = do $realfilename;
last ITER;
}
}
die "Can't find $filename in \@INC";
}
delete $INC{$filename} if $@ || !$result;
die $@ if $@;
die "$filename did not return true value" unless $result;
return $result;
}
-dlc
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