From f9d4b5020710061eb6af3ed35233d1b0fbb93438 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Mon, 11 Jul 2016 13:52:21 -0600
Subject: [PATCH] If there are no streams, let printf() fall back to use
 syslog() for output.

---
 libc/stdio/lib_printf.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/libc/stdio/lib_printf.c b/libc/stdio/lib_printf.c
index b760abb4bb..7c3e460b97 100644
--- a/libc/stdio/lib_printf.c
+++ b/libc/stdio/lib_printf.c
@@ -58,13 +58,8 @@ int printf(FAR const IPTR char *fmt, ...)
   va_start(ap, fmt);
 #if CONFIG_NFILE_STREAMS > 0
   ret = vfprintf(stdout, fmt, ap);
-#elif CONFIG_NFILE_DESCRIPTORS > 0
-  ret = vsyslog(LOG_INFO, fmt, ap);
 #else
-# ifdef CONFIG_CPP_HAVE_WARNING
-#   warning "printf has no data sink"
-# endif
-  ret = 0;
+  ret = vsyslog(LOG_INFO, fmt, ap);
 #endif
   va_end(ap);