From bcba9e67a0233dcf7600222641deeb7ae1117c40 Mon Sep 17 00:00:00 2001
From: Graham McIntire <graham@mcintire.me>
Date: Fri, 30 Jan 2026 13:11:24 -0600
Subject: [PATCH] fix: include sys/types.h for BSD type definitions

Add #include <sys/types.h> before net-snmp headers to provide
u_char and other BSD-style type definitions required by net-snmp.

This fixes compilation errors in CI/Docker builds on Linux.
---
 c_src/towerops_nif.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/c_src/towerops_nif.c b/c_src/towerops_nif.c
index cc257853..65627bfe 100644
--- a/c_src/towerops_nif.c
+++ b/c_src/towerops_nif.c
@@ -2,6 +2,7 @@
 // Directly links to libnetsnmp without Rust layer
 
 #include <erl_nif.h>
+#include <sys/types.h>
 #include <net-snmp/net-snmp-config.h>
 #include <net-snmp/net-snmp-includes.h>
 #include <string.h>