#ifndef YCONFIG_H
#define YCONFIG_H
+/* System includes */
+
+#ifdef _VMS_
+
+#elif WINDOWS
+
+#ifdef YNETINCLUDE
+#include <winsock.h>
+#endif
+
+#else
+/*
+ * Standard Unix headers
+ */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+
+#ifdef YNETINCLUDE
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#endif
+
+#ifdef _AIX
+#include <sys/select.h>
+#endif
+
+#endif
+
+#include <xmalloc.h>
+
#ifdef WINDOWS
#define MDF
#else