From 81532b31b0a5c2b62389fe72cbaa5e65590a628b Mon Sep 17 00:00:00 2001
From: hauntsaninja <hauntsaninja@gmail.com>
Date: Fri, 29 Apr 2022 21:44:07 -0600
Subject: [PATCH] Fix Python 3.11 support

---
 .github/workflows/build.yml | 15 +++++++++++++++
 ast3/Parser/tokenizer.c     |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index fc790467..ea829754 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,6 +3,21 @@ name: Build wheels
 on: [push, pull_request]
 
 jobs:
+  test_prerelease_python:
+    # needed because manylinux is hesitant to support pre-release python
+    # so we can't just use cibuildwheel
+    name: prelease python
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: '3.11-dev'
+      - run: |
+          python3.11 -m pip install -e .
+          python3.11 -m pip install pytest
+          python3.11 -m pytest
+
   build_wheels:
     name: py${{ matrix.python-version }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/ast3/Parser/tokenizer.c b/ast3/Parser/tokenizer.c
index 092f2690..a430a00a 100644
--- a/ast3/Parser/tokenizer.c
+++ b/ast3/Parser/tokenizer.c
@@ -1980,6 +1980,8 @@ Ta3Tokenizer_Get(struct tok_state *tok, char **p_start, char **p_end)
    The char* returned is malloc'ed via PyMem_MALLOC() and thus must be freed
    by the caller. */
 
+PyAPI_FUNC(int) _Py_dup(int fd);
+
 char *
 Ta3Tokenizer_FindEncodingFilename(int fd, PyObject *filename)
 {