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-rw-r--r--external/db_drivers/liblmdb/mdb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/external/db_drivers/liblmdb/mdb.c b/external/db_drivers/liblmdb/mdb.c
index 5d57f8b15..4c9e22388 100644
--- a/external/db_drivers/liblmdb/mdb.c
+++ b/external/db_drivers/liblmdb/mdb.c
@@ -35,7 +35,7 @@
#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1
#endif
-#ifdef MDB_VL32
+#if defined(MDB_VL32) || defined(__WIN64__)
#define _FILE_OFFSET_BITS 64
#endif
#ifdef _WIN32