From 7e5a8e3a132af6b460af4ba1d9d6bf5a4142443f Mon Sep 17 00:00:00 2001
From: Gwyn Ciesla <gwync@protonmail.com>
Date: Tue, 24 Oct 2023 11:17:04 -0500
Subject: [PATCH] Include ctype.h, fixes build on Python 3.13

---
 src/_igraph/convert.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/_igraph/convert.c b/src/_igraph/convert.c
index 4283ff8ed..c05a4eba2 100644
--- a/src/_igraph/convert.c
+++ b/src/_igraph/convert.c
@@ -23,6 +23,7 @@
 /************************ Conversion functions *************************/
 
 #include <limits.h>
+#include <ctype.h>
 #include "attributes.h"
 #include "convert.h"
 #include "edgeseqobject.h"