$OpenBSD: patch-src_campaign_server_campaign_server_cpp,v 1.6 2018/08/26 12:24:50 kirby Exp $
Index: src/campaign_server/campaign_server.cpp
--- src/campaign_server/campaign_server.cpp.orig
+++ src/campaign_server/campaign_server.cpp
@@ -50,6 +50,8 @@
 // work on Windows not sure which other platforms have a problem with it.
 #if !(defined(_WIN32))
 #include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
 #endif
 
 static lg::log_domain log_campaignd("campaignd");
