Issue #13150: sysconfig no longer parses the Makefile and config.h files
when imported, instead doing it at build time. This makes importing
sysconfig faster and reduces Python startup time by 20%.
diff --git a/Misc/NEWS b/Misc/NEWS
index 24fadae..3d77bbf 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -315,6 +315,10 @@
Library
-------
+- Issue #13150: sysconfig no longer parses the Makefile and config.h files
+ when imported, instead doing it at build time. This makes importing
+ sysconfig faster and reduces Python startup time by 20%.
+
- Issue #12448: smtplib now flushes stdout while running ``python -m smtplib``
in order to display the prompt correctly.