https://bugs.gentoo.org/921727
https://github.com/sshock/AFFLIBv3/issues/53
https://github.com/sshock/AFFLIBv3/commit/01210f488410a23838c54fcc22297cf08ac7de66

From 01210f488410a23838c54fcc22297cf08ac7de66 Mon Sep 17 00:00:00 2001
From: Phillip Hellewell <sshock@gmail.com>
Date: Wed, 14 Feb 2024 00:43:56 -0700
Subject: [PATCH] Fix #53: incompatible pointer types in pyaff.c

--- a/pyaff/afflib.pxd
+++ b/pyaff/afflib.pxd
@@ -2,7 +2,8 @@ from libc.stdint cimport int64_t, uint32_t, uint64_t
 from posix.fcntl cimport O_RDONLY
 
 cdef extern from "afflib/afflib.h":
-    struct AFFILE
+    struct _AFFILE
+    ctypedef _AFFILE AFFILE
 
     enum: AF_MAX_NAME_LEN
 
--- a/pyaff/pyaff.c
+++ b/pyaff/pyaff.c
@@ -1478,7 +1478,7 @@ struct __pyx_obj_5pyaff_affile;
  */
 struct __pyx_obj_5pyaff_affile {
   PyObject_HEAD
-  struct AFFILE *af;
+  AFFILE *af;
   int64_t size;
 };