diff --git a/NuttX b/NuttX
index ae4b05e2c5..dbe128ceaf 160000
--- a/NuttX
+++ b/NuttX
@@ -1 +1 @@
-Subproject commit ae4b05e2c51d07369b5d131052099ac346b0841c
+Subproject commit dbe128ceaf0e486b2ef799f14c13d38586e6cca8
diff --git a/makefiles/toolchain_gnu-arm-eabi.mk b/makefiles/toolchain_gnu-arm-eabi.mk
index 84e5cd08a2..b98b1a0afe 100644
--- a/makefiles/toolchain_gnu-arm-eabi.mk
+++ b/makefiles/toolchain_gnu-arm-eabi.mk
@@ -121,7 +121,7 @@ INSTRUMENTATIONDEFINES	 = $(ARCHINSTRUMENTATIONDEFINES_$(CONFIG_ARCH))
 # Language-specific flags
 #
 ARCHCFLAGS		 = -std=gnu99
-ARCHCXXFLAGS		 = -fno-exceptions -fno-rtti -std=gnu++0x -fno-threadsafe-statics
+ARCHCXXFLAGS		 = -fno-exceptions -fno-rtti -std=gnu++0x -fno-threadsafe-statics -D__CUSTOM_FILE_IO__
 
 # Generic warnings
 #
diff --git a/src/examples/subscriber/subscriber.cpp b/src/examples/subscriber/subscriber.cpp
index 68003b6dfc..0d9ca1fa76 100644
--- a/src/examples/subscriber/subscriber.cpp
+++ b/src/examples/subscriber/subscriber.cpp
@@ -27,6 +27,7 @@
 
 #include <px4.h>
 #include "subscriber_params.h"
+#include <cstdio>
 
 using namespace px4;