1 files changed, 10 insertions, 0 deletions
diff --git a/lib/posix/posix.nim b/lib/posix/posix.nim
index e1ecbb518..9334ceeae 100644
--- a/lib/posix/posix.nim
+++ b/lib/posix/posix.nim
@@ -1551,6 +1551,16 @@ var
   MSG_OOB* {.importc, header: "<sys/socket.h>".}: cint
     ## Out-of-band data.
 
+
+when defined(linux):
+  var
+    MAP_POPULATE* {.importc, header: "<sys/mman.h>".}: cint
+      ## Populate (prefault) page tables for a mapping.
+else:
+  var
+    MAP_POPULATE*: cint = 0
+
+
 when defined(macosx):
   var
     MSG_HAVEMORE* {.importc, header: "<sys/socket.h>".}: cint