use SDBM_File; # part of Perl standard library
use Fcntl qw(O_RDWR O_CREAT);
use File::Temp 0.19 (); # 0.19 for ->newdir
-my %e = (freebsd => 0x100000, linux => 0x80000, openbsd => 0x10000);
+my %e = (
+ freebsd => 0x100000,
+ linux => 0x80000,
+ netbsd => 0x400000,
+ openbsd => 0x10000,
+);
my $O_CLOEXEC = $e{$^O} // 0;
sub new {