From d49a6401e697be2925c4ca2ac5b21957b91de214 Mon Sep 17 00:00:00 2001
From: YuF-9468 <104271189+YuF-9468@users.noreply.github.com>
Date: Wed, 4 Mar 2026 03:35:20 +0800
Subject: [PATCH] docs: mention configure cache for faster local build loops

---
 getting-started/setup-building.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/getting-started/setup-building.rst b/getting-started/setup-building.rst
index ed7376a02..373fee210 100644
--- a/getting-started/setup-building.rst
+++ b/getting-started/setup-building.rst
@@ -188,6 +188,10 @@ Configuration is typically::
 
    $ ./configure --with-pydebug
 
+For faster edit-configure-build-test loops, you can enable Autoconf's cache
+with ``./configure -C`` (equivalent to ``./configure --config-cache``), which
+reuses previous probe results when possible.
+
 More flags are available to ``configure``, but this is the minimum you should
 do to get a pydebug build of CPython.