From 3a08d2f162de86e2613392c78e75df3b3a19aaf8 Mon Sep 17 00:00:00 2001
From: Lukas Lalinsky <lukas@lalinsky.com>
Date: Fri, 14 Nov 2025 17:48:19 +0100
Subject: [PATCH] Define std.c.MADV for NetBSD

The `.netbsd` branch was completely missing. Validated against the
actual system headers.
---
 lib/std/c.zig | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/std/c.zig b/lib/std/c.zig
index bfda9c31c9..57852d4830 100644
--- a/lib/std/c.zig
+++ b/lib/std/c.zig
@@ -1599,6 +1599,15 @@ pub const MADV = switch (native_os) {
         pub const SEQUENTIAL = 0x5;
         pub const RANDOM = 0x6;
     },
+    .netbsd => struct {
+        pub const NORMAL = 0;
+        pub const RANDOM = 1;
+        pub const SEQUENTIAL = 2;
+        pub const WILLNEED = 3;
+        pub const DONTNEED = 4;
+        pub const SPACEAVAIL = 5;
+        pub const FREE = 6;
+    },
     else => void,
 };
 pub const MCL = switch (native_os) {