- Patch #1560695: Add .note.GNU-stack to ctypes' sysv.S so that
  ctypes isn't considered as requiring executable stacks.
Will backport to 2.5.
diff --git a/Misc/NEWS b/Misc/NEWS
index e311bad..f78ddb0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -81,6 +81,9 @@
 Library
 -------
 
+- Patch #1560695: Add .note.GNU-stack to ctypes' sysv.S so that
+  ctypes isn't considered as requiring executable stacks.
+
 - ctypes callback functions only support 'fundamental' data types as
   result type.  Raise an error when something else is used.  This is a
   partial fix for Bug #1574584.
diff --git a/Modules/_ctypes/libffi/src/x86/sysv.S b/Modules/_ctypes/libffi/src/x86/sysv.S
index 46759f4..9542fba 100644
--- a/Modules/_ctypes/libffi/src/x86/sysv.S
+++ b/Modules/_ctypes/libffi/src/x86/sysv.S
@@ -376,3 +376,7 @@
 #endif
 
 #endif /* ifndef __x86_64__ */
+
+#ifdef __ELF__
+.section .note.GNU-stack,"",%progbits
+#endif