printf-utils: Add missing includes

src/printf-utils.c

@@ -22,6 +22,10 @@
 #include <stdarg.h>
 #include <unistd.h>
 
+#include <sys/select.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
 #include "global.h"
 
 #include "printf-utils.h"