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-rw-r--r--src/gdbm.h.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gdbm.h.in b/src/gdbm.h.in
index a916457..be6a11a 100644
--- a/src/gdbm.h.in
+++ b/src/gdbm.h.in
@@ -54,7 +54,7 @@ extern "C" {
set it. */
# define GDBM_CLOERROR 0x0400 /* Only for gdbm_fd_open: close fd on error. */
# define GDBM_XVERIFY 0x0800 /* Additional consistency checks. */
-# define GDBM_PREREAD 0x1000
+# define GDBM_PREREAD 0x1000 /* Enable pre-fault reading of mmapped regions. */
/* Parameters to gdbm_store for simple insertion or replacement in the
case that the key is already in the database. */