#include <assert.h>
#include <errno.h>
#include <fcntl.h>
-#include <unistd.h>
-#include <sys/time.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
#include <sys/types.h>
#include <glib.h>
#include <windows.h>