diff -urN a/Include/bytesobject.h b/Include/bytesobject.h
--- a/Include/bytesobject.h	2014-10-11 14:23:20.866222800 +0100
+++ b/Include/bytesobject.h	2014-10-11 14:23:22.622323200 +0100
@@ -52,9 +52,9 @@
 PyAPI_FUNC(PyObject *) PyBytes_FromString(const char *);
 PyAPI_FUNC(PyObject *) PyBytes_FromObject(PyObject *);
 PyAPI_FUNC(PyObject *) PyBytes_FromFormatV(const char*, va_list)
-				Py_GCC_ATTRIBUTE((format(printf, 1, 0)));
+				Py_GCC_ATTRIBUTE((format(gnu_printf, 1, 0)));
 PyAPI_FUNC(PyObject *) PyBytes_FromFormat(const char*, ...)
-				Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
+				Py_GCC_ATTRIBUTE((format(gnu_printf, 1, 2)));
 PyAPI_FUNC(Py_ssize_t) PyBytes_Size(PyObject *);
 PyAPI_FUNC(char *) PyBytes_AsString(PyObject *);
 PyAPI_FUNC(PyObject *) PyBytes_Repr(PyObject *, int);
diff -urN a/Include/pgenheaders.h b/Include/pgenheaders.h
--- a/Include/pgenheaders.h	2014-10-11 14:23:20.873223200 +0100
+++ b/Include/pgenheaders.h	2014-10-11 14:23:22.624323300 +0100
@@ -10,9 +10,9 @@
 #include "Python.h"
 
 PyAPI_FUNC(void) PySys_WriteStdout(const char *format, ...)
-			Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
+			Py_GCC_ATTRIBUTE((format(gnu_printf, 1, 2)));
 PyAPI_FUNC(void) PySys_WriteStderr(const char *format, ...)
-			Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
+			Py_GCC_ATTRIBUTE((format(gnu_printf, 1, 2)));
 
 #define addarc _Py_addarc
 #define addbit _Py_addbit
diff -urN a/Include/pyerrors.h b/Include/pyerrors.h
--- a/Include/pyerrors.h	2014-10-11 14:23:20.879223500 +0100
+++ b/Include/pyerrors.h	2014-10-11 14:23:22.624323300 +0100
@@ -454,9 +454,9 @@
 
 #include <stdarg.h>
 PyAPI_FUNC(int) PyOS_snprintf(char *str, size_t size, const char  *format, ...)
-                        Py_GCC_ATTRIBUTE((format(printf, 3, 4)));
+                        Py_GCC_ATTRIBUTE((format(gnu_printf, 3, 4)));
 PyAPI_FUNC(int) PyOS_vsnprintf(char *str, size_t size, const char  *format, va_list va)
-                        Py_GCC_ATTRIBUTE((format(printf, 3, 0)));
+                        Py_GCC_ATTRIBUTE((format(gnu_printf, 3, 0)));
 
 #ifdef __cplusplus
 }
diff -urN a/Include/sysmodule.h b/Include/sysmodule.h
--- a/Include/sysmodule.h	2014-10-11 14:23:20.861222500 +0100
+++ b/Include/sysmodule.h	2014-10-11 14:23:22.625323400 +0100
@@ -19,9 +19,9 @@
 PyAPI_FUNC(void) PySys_SetPath(const wchar_t *);
 
 PyAPI_FUNC(void) PySys_WriteStdout(const char *format, ...)
-                 Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
+                 Py_GCC_ATTRIBUTE((format(gnu_printf, 1, 2)));
 PyAPI_FUNC(void) PySys_WriteStderr(const char *format, ...)
-                 Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
+                 Py_GCC_ATTRIBUTE((format(gnu_printf, 1, 2)));
 PyAPI_FUNC(void) PySys_FormatStdout(const char *format, ...);
 PyAPI_FUNC(void) PySys_FormatStderr(const char *format, ...);