From 8c9d71cfc487b4288d389406524b2cab69e53392 Mon Sep 17 00:00:00 2001
From: Julien Palard <julien@palard.fr>
Date: Tue, 26 Dec 2017 23:00:28 +0100
Subject: [PATCH] bpo-32429: Abort compilation on outdated Modules/Setup file.

---
 Makefile.pre.in                                                | 3 +++
 .../NEWS.d/next/Build/2017-12-26-23-22-37.bpo-32429.yfKLwE.rst | 3 +++
 2 files changed, 6 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Build/2017-12-26-23-22-37.bpo-32429.yfKLwE.rst

diff --git a/Makefile.pre.in b/Makefile.pre.in
index 4fe9affe0d25e9e..8a81b2cdd55d637 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -692,7 +692,10 @@ Modules/Setup: $(srcdir)/Modules/Setup.dist
 		echo "check to make sure you have all the updates you"; \
 		echo "need in your Modules/Setup file."; \
 		echo "Usually, copying Modules/Setup.dist to Modules/Setup will work."; \
+		echo "Or if you want to keep your modifications, touch Modules/Setup"; \
+		echo "to skip this warning."; \
 		echo "-----------------------------------------------"; \
+		false; \
 	fi
 
 Programs/_testembed: Programs/_testembed.o $(LIBRARY) $(LDLIBRARY) $(PY3LIBRARY)
diff --git a/Misc/NEWS.d/next/Build/2017-12-26-23-22-37.bpo-32429.yfKLwE.rst b/Misc/NEWS.d/next/Build/2017-12-26-23-22-37.bpo-32429.yfKLwE.rst
new file mode 100644
index 000000000000000..7297d1f83c156df
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2017-12-26-23-22-37.bpo-32429.yfKLwE.rst
@@ -0,0 +1,3 @@
+Build will now fail when Module/Setup is out of date. Previously a warning
+was displayed but was invisible due to make verbosity, sometimes giving a
+non-working Python as a result, like in https://bugs.python.org/issue32335.