From f6a2c29f67cd897078c71af9a89cf94d0daef6ef Mon Sep 17 00:00:00 2001
From: Tyler Reddy <tyler.je.reddy@gmail.com>
Date: Tue, 6 Aug 2024 17:53:23 -0600
Subject: [PATCH] BLD: use C11 standard (#4652)

* Fixes gh-4651

* The reason that bumping to the C11 standard for the C language
helps us build with free-threaded CPython `3.13.0rc1` is described
at: https://github.com/scikit-learn/scikit-learn/issues/28977
---
 package/setup.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/setup.py b/package/setup.py
index bd4aee30cc..0fc4bef4e2 100755
--- a/package/setup.py
+++ b/package/setup.py
@@ -259,7 +259,7 @@ def extensions(config):
     use_openmp = config.get('use_openmp', default=True)
     annotate_cython = config.get('annotate_cython', default=False)
 
-    extra_compile_args = ['-std=c99', '-O3', '-funroll-loops',
+    extra_compile_args = ['-std=c11', '-O3', '-funroll-loops',
                           '-fsigned-zeros'] # see #2722
     define_macros = []
     if config.get('debug_cflags', default=False):