diff --git a/src/core/stdc/limits.d b/src/core/stdc/limits.d
index 0adfb093f5..3ab7ed1e4f 100644
--- a/src/core/stdc/limits.d
+++ b/src/core/stdc/limits.d
@@ -14,6 +14,15 @@
 
 module core.stdc.limits;
 
+version (OSX)
+    version = Darwin;
+else version (iOS)
+    version = Darwin;
+else version (TVOS)
+    version = Darwin;
+else version (WatchOS)
+    version = Darwin;
+
 private import core.stdc.config;
 
 extern (C):
@@ -68,6 +77,20 @@ enum ULLONG_MAX     = ulong.max;
 // File system limits
 //
 
+version (Darwin)
+{
+    ///
+    enum MAX_CANON      = 1024;
+    ///
+    enum MAX_INPUT      = 1024;
+    ///
+    enum NAME_MAX       = 255;
+    ///
+    enum PATH_MAX       = 1024;
+    ///
+    enum PIPE_BUF       = 512;
+}
+
 version (DragonFlyBSD)
 {
     ///