From 031bf95d3212d246a44e8e3a23ff32023ab905e9 Mon Sep 17 00:00:00 2001
From: Ross Lagerwall <rosslagerwall@gmail.com>
Date: Thu, 22 Dec 2011 09:07:30 +0200
Subject: Issue #11006: Don't issue low level warning in subprocess when
 pipe2() fails.

---
 Misc/NEWS                  | 2 ++
 Modules/_posixsubprocess.c | 6 ------
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/Misc/NEWS b/Misc/NEWS
index 9168a55..c36b019 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -97,6 +97,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #11006: Don't issue low level warning in subprocess when pipe2() fails.
+
 - Issue #11829: Fix code execution holes in inspect.getattr_static for
   metaclasses with metaclasses. Patch by Andreas Stührk.
 
diff --git a/Modules/_posixsubprocess.c b/Modules/_posixsubprocess.c
index 11b24a0..4e38bbe 100644
--- a/Modules/_posixsubprocess.c
+++ b/Modules/_posixsubprocess.c
@@ -437,12 +437,6 @@ subprocess_cloexec_pipe(PyObject *self, PyObject *noargs)
     Py_END_ALLOW_THREADS
     if (res != 0 && errno == ENOSYS)
     {
-        if (PyErr_WarnEx(
-                PyExc_RuntimeWarning,
-                "pipe2 set errno ENOSYS; falling "
-                "back to non-atomic pipe+fcntl.", 1) != 0) {
-            return NULL;
-        }
         {
 #endif
         /* We hold the GIL which offers some protection from other code calling
-- 
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