-use constant {
- BATCH_BYTES => defined($ENV{XAPIAN_FLUSH_THRESHOLD}) ?
- 0x7fffffff : 1_000_000,
- DEBUG => !!$ENV{DEBUG},
-};
+our $BATCH_BYTES = defined($ENV{XAPIAN_FLUSH_THRESHOLD}) ?
+ 0x7fffffff : 1_000_000;
+use constant DEBUG => !!$ENV{DEBUG};