From 382340d5594a05d8a5362a06fe55119eec1d8e04 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Filipe=20La=C3=ADns=20=F0=9F=87=B5=F0=9F=87=B8?=
 <lains@riseup.net>
Date: Mon, 20 Jan 2025 20:41:27 +0000
Subject: [PATCH] doc: add social cards generation support in
 sphinxext-opengraph (#129085)

---
 Doc/Makefile                  | 3 ++-
 Doc/requirements-no-build.txt | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 Doc/requirements-no-build.txt

diff --git a/Doc/Makefile b/Doc/Makefile
index b8896da4a918..53af6aca659c 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -13,7 +13,8 @@ JOBS         = auto
 PAPER        =
 SOURCES      =
 DISTVERSION  = $(shell $(PYTHON) tools/extensions/patchlevel.py)
-REQUIREMENTS = requirements.txt
+IS_PYTHON_BUILD = $(shell $(PYTHON) -c 'import sysconfig; print("true") if sysconfig.is_python_build() else None')
+REQUIREMENTS = $(if $(IS_PYTHON_BUILD),requirements.txt,requirements-no-build.txt)
 SPHINXERRORHANDLING = --fail-on-warning
 
 # Internal variables.
diff --git a/Doc/requirements-no-build.txt b/Doc/requirements-no-build.txt
new file mode 100644
index 000000000000..8b3c4d410a75
--- /dev/null
+++ b/Doc/requirements-no-build.txt
@@ -0,0 +1,7 @@
+-r requirements.txt
+
+# Requirements when not running the build Python,
+# such as optional native extensions.
+
+# Needed to support generating social cards in sphinxext-opengraph.
+--only-binary matplotlib
-- 
2.47.3