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-rw-r--r--gr-usrp/src/usrp_sink_base.cc1
-rw-r--r--gr-usrp/src/usrp_source_base.cc1
2 files changed, 2 insertions, 0 deletions
diff --git a/gr-usrp/src/usrp_sink_base.cc b/gr-usrp/src/usrp_sink_base.cc
index fc238ceb8..cb65e02cd 100644
--- a/gr-usrp/src/usrp_sink_base.cc
+++ b/gr-usrp/src/usrp_sink_base.cc
@@ -28,6 +28,7 @@
#include <gr_io_signature.h>
#include <usrp_standard.h>
#include <assert.h>
+#include <cstdio>
static const int OUTPUT_MULTIPLE_SAMPLES = 128; // DON'T CHANGE THIS VALUE!
diff --git a/gr-usrp/src/usrp_source_base.cc b/gr-usrp/src/usrp_source_base.cc
index 2c8394a95..99efbcdda 100644
--- a/gr-usrp/src/usrp_source_base.cc
+++ b/gr-usrp/src/usrp_source_base.cc
@@ -28,6 +28,7 @@
#include <gr_io_signature.h>
#include <usrp_standard.h>
#include <assert.h>
+#include <cstdio>
static const int OUTPUT_MULTIPLE_BYTES = 4 * 1024;