diff --git a/gtk2_ardour/curvetest.cc b/gtk2_ardour/curvetest.cc
index 701315e853..a2cc764372 100644
--- a/gtk2_ardour/curvetest.cc
+++ b/gtk2_ardour/curvetest.cc
@@ -1,3 +1,4 @@
+
 /*
     Copyright (C) 2000-2007 Paul Davis 
 
diff --git a/libs/pbd/convert.cc b/libs/pbd/convert.cc
index 3c27026546..cd30f50a2b 100644
--- a/libs/pbd/convert.cc
+++ b/libs/pbd/convert.cc
@@ -17,6 +17,7 @@
 
 */
 
+#include <cstdio>
 #include <cmath>
 #include <locale>
 #include <algorithm>
diff --git a/libs/pbd/pbd/convert.h b/libs/pbd/pbd/convert.h
index 83cd285098..f8358e8801 100644
--- a/libs/pbd/pbd/convert.h
+++ b/libs/pbd/pbd/convert.h
@@ -20,6 +20,7 @@
 #ifndef __pbd_convert_h__
 #define __pbd_convert_h__
 
+#include <stdint.h>
 #include <string>
 #include <vector>
 #include <sstream>
diff --git a/libs/pbd/shortpath.cc b/libs/pbd/shortpath.cc
index 9f9598e617..7a075a5b4e 100644
--- a/libs/pbd/shortpath.cc
+++ b/libs/pbd/shortpath.cc
@@ -17,6 +17,7 @@
 
 */
 
+#include <stdint.h>
 #include <pbd/shortpath.h>
 
 using namespace Glib;
diff --git a/libs/pbd/stacktrace.cc b/libs/pbd/stacktrace.cc
index 1d7190fcbf..304859c2d3 100644
--- a/libs/pbd/stacktrace.cc
+++ b/libs/pbd/stacktrace.cc
@@ -17,6 +17,7 @@
 
 */
 
+#include <cstdio>
 #include <pbd/stacktrace.h>
 #include <iostream>