From aa011f4a9db26cb0da68d9d207f424898c29f7de Mon Sep 17 00:00:00 2001
From: mejrs <59372212+mejrs@users.noreply.github.com>
Date: Tue, 3 Oct 2023 23:25:45 +0200
Subject: [PATCH] Update PyModuleDef_Slot types

---
 newsfragments/3494.added.md  | 1 +
 pyo3-ffi/src/moduleobject.rs | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 newsfragments/3494.added.md

diff --git a/newsfragments/3494.added.md b/newsfragments/3494.added.md
new file mode 100644
index 00000000000..7055e52a48e
--- /dev/null
+++ b/newsfragments/3494.added.md
@@ -0,0 +1 @@
+Added the Py_mod_multiple_interpreters constant and its possible values.
\ No newline at end of file
diff --git a/pyo3-ffi/src/moduleobject.rs b/pyo3-ffi/src/moduleobject.rs
index 72482498a33..f4306b18639 100644
--- a/pyo3-ffi/src/moduleobject.rs
+++ b/pyo3-ffi/src/moduleobject.rs
@@ -85,6 +85,15 @@ impl Default for PyModuleDef_Slot {
 
 pub const Py_mod_create: c_int = 1;
 pub const Py_mod_exec: c_int = 2;
+#[cfg(Py_3_12)]
+pub const Py_mod_multiple_interpreters: c_int = 3;
+
+#[cfg(Py_3_12)]
+pub const Py_MOD_MULTIPLE_INTERPRETERS_NOT_SUPPORTED: *mut c_void = 0 as *mut c_void;
+#[cfg(Py_3_12)]
+pub const Py_MOD_MULTIPLE_INTERPRETERS_SUPPORTED: *mut c_void = 1 as *mut c_void;
+#[cfg(Py_3_12)]
+pub const Py_MOD_PER_INTERPRETER_GIL_SUPPORTED: *mut c_void = 2 as *mut c_void;
 
 // skipped non-limited _Py_mod_LAST_SLOT