From 3f5f8a7f51b16097ce6d5811ea3934efdfb27dd6 Mon Sep 17 00:00:00 2001
From: Sergey Kandaurov <pluknet@nginx.com>
Date: Thu, 10 Jul 2025 16:30:35 +0400
Subject: [PATCH] Configure: set NGX_KQUEUE_UDATA_T at compile time.

The NGX_KQUEUE_UDATA_T macro is used to compensate the incompatible
kqueue() API in NetBSD, it doesn't really belong to feature tests.

The change limits the macro visibility to the kqueue event module.
Moving from autotests also simplifies testing a particular NetBSD
version as seen in a subsequent change.
---
 auto/unix                             | 20 --------------------
 src/event/modules/ngx_kqueue_module.c |  9 +++++++++
 2 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/auto/unix b/auto/unix
index 0dd66cfcd..6087e04fd 100644
--- a/auto/unix
+++ b/auto/unix
@@ -129,26 +129,6 @@ if test -z "$NGX_KQUEUE_CHECKED"; then
 fi
 
 
-if [ "$NGX_SYSTEM" = "NetBSD" ]; then
-
-    # NetBSD 2.0 incompatibly defines kevent.udata as "intptr_t"
-
-    cat << END >> $NGX_AUTO_CONFIG_H
-
-#define NGX_KQUEUE_UDATA_T
-
-END
-
-else
-    cat << END >> $NGX_AUTO_CONFIG_H
-
-#define NGX_KQUEUE_UDATA_T  (void *)
-
-END
-
-fi
-
-
 ngx_feature="crypt()"
 ngx_feature_name="NGX_HAVE_CRYPT"
 ngx_feature_run=no
diff --git a/src/event/modules/ngx_kqueue_module.c b/src/event/modules/ngx_kqueue_module.c
index fb8a6527c..2ed862e9e 100644
--- a/src/event/modules/ngx_kqueue_module.c
+++ b/src/event/modules/ngx_kqueue_module.c
@@ -10,6 +10,15 @@
 #include <ngx_event.h>
 
 
+/* NetBSD 2.0 incompatibly defines kevent.udata as "intptr_t" */
+
+#if (__NetBSD__)
+#define NGX_KQUEUE_UDATA_T
+#else
+#define NGX_KQUEUE_UDATA_T  (void *)
+#endif
+
+
 typedef struct {
     ngx_uint_t  changes;
     ngx_uint_t  events;