From 088b12b9903c7057bb0f5bac4dc8bfe439cd6d0c Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Jan 08 2024 09:37:38 +0000
Subject: Fix C compatibility issue


---

diff --git a/python-axolotl-curve25519-c99.patch b/python-axolotl-curve25519-c99.patch
new file mode 100644
index 0000000..9681a89
--- /dev/null
+++ b/python-axolotl-curve25519-c99.patch
@@ -0,0 +1,21 @@
+C type error in the Python module definition
+
+The m_size field at this position has type Py_ssize_t, so you use 0 to
+initialize it, and not a pointer constant. Fixes a build error with
+current compilers.
+
+Submitted upstream: <https://github.com/tgalal/python-axolotl-curve25519/pull/28>
+
+diff --git a/curve25519module.c b/curve25519module.c
+index f4bd3d7adc504cf5..cf8bb45969f486c6 100644
+--- a/curve25519module.c
++++ b/curve25519module.c
+@@ -158,7 +158,7 @@ curve25519_functions[] = {
+         PyModuleDef_HEAD_INIT,
+         "axolotl_curve25519",
+         NULL,
+-        NULL,
++        0,
+         curve25519_functions,
+     };
+ 
diff --git a/python-axolotl-curve25519.spec b/python-axolotl-curve25519.spec
index 112baba..e282a63 100644
--- a/python-axolotl-curve25519.spec
+++ b/python-axolotl-curve25519.spec
@@ -12,6 +12,7 @@ URL:            https://github.com/tgalal/python-axolotl-curve25519
 Source0:        %{url}/archive/%{git_tag}/%{git_tag}.tar.gz
 # License file for curve/curve25519-donna.[c|h]
 Source1:	LICENSE.curve25519-donna
+Patch0: python-axolotl-curve25519-c99.patch
 
 BuildRequires:  gcc
 BuildRequires:  python3-devel