$OpenBSD: patch-modules_core_src_system_cpp,v 1.6 2019/09/27 05:49:56 rsadowski Exp $
Fix build on i386.
Index: modules/core/src/system.cpp
--- modules/core/src/system.cpp.orig
+++ modules/core/src/system.cpp
@@ -189,9 +189,12 @@ std::wstring GetTempFileNameWinRT(std::wstring prefix)
 
 #endif
 #else
+#include <fcntl.h>
 #include <pthread.h>
 #include <sys/time.h>
+#include <stdlib.h>
 #include <time.h>
+#include <unistd.h>
 
 #if defined __MACH__ && defined __APPLE__
 #include <mach/mach.h>
