From 0a13cc712802b44a3a129455709e1a2e4effada7 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 27 Oct 2026 21:26:42 +0200
Subject: [PATCH 1/2] Re-use the main macOS workflow for tail-calling

---
 .github/workflows/reusable-macos.yml |  5 +++++
 .github/workflows/tail-call.yml      | 26 ++++----------------------
 2 files changed, 9 insertions(+), 22 deletions(-)

diff --git a/.github/workflows/reusable-macos.yml b/.github/workflows/reusable-macos.yml
index 2e6e4d6e4c6924..06cfe5d53ccc49 100644
--- a/.github/workflows/reusable-macos.yml
+++ b/.github/workflows/reusable-macos.yml
@@ -11,6 +11,10 @@ on:
         description: OS to run the job
         required: true
         type: string
+      tail-call-interp:
+        required: false
+        type: boolean
+        default: false
 
 permissions:
   contents: read
@@ -51,6 +55,7 @@ jobs:
           --enable-slower-safety \
           --enable-safety \
           ${{ inputs.free-threading && '--disable-gil' || '' }} \
+          ${{ inputs.tail-call-interp && '--with-tail-call-interp' || '' }} \
           --prefix=/opt/python-dev \
           --with-openssl="$(brew --prefix openssl@3.5)"
     - name: Build CPython
diff --git a/.github/workflows/tail-call.yml b/.github/workflows/tail-call.yml
index b828194fffaca8..d4df6aa3b95780 100644
--- a/.github/workflows/tail-call.yml
+++ b/.github/workflows/tail-call.yml
@@ -25,28 +25,10 @@ env:
 jobs:
   macos:
     name: aarch64-apple-darwin/clang
-    runs-on: macos-26
-    timeout-minutes: 60
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
-        with:
-          python-version: '3.11'
-      - name: Install dependencies
-        run: |
-          brew update
-          brew install llvm@${{ env.LLVM_VERSION }}
-      - name: Build
-        run: |
-          export SDKROOT="$(xcrun --show-sdk-path)"
-          export PATH="/opt/homebrew/opt/llvm@${{ env.LLVM_VERSION }}/bin:$PATH"
-          CC=clang-${{ env.LLVM_VERSION }} ./configure --with-tail-call-interp
-          make all --jobs 4
-      - name: Test
-        run: |
-          ./python.exe -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
+    uses: ./.github/workflows/reusable-macos.yml
+    with:
+      os: macos-26
+      tail-call-interp: true
 
   linux:
     name: ${{ matrix.target }}

From 9e25d323bb192d890f3e98ede4b88d80347eb3d9 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 27 Oct 2026 21:35:33 +0200
Subject: [PATCH 2/2] Only test tail-calling on macOS, as part of regular CI

---
 .github/workflows/reusable-macos.yml | 6 +-----
 .github/workflows/tail-call.yml      | 7 -------
 2 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/.github/workflows/reusable-macos.yml b/.github/workflows/reusable-macos.yml
index 06cfe5d53ccc49..2883a20b612f85 100644
--- a/.github/workflows/reusable-macos.yml
+++ b/.github/workflows/reusable-macos.yml
@@ -11,10 +11,6 @@ on:
         description: OS to run the job
         required: true
         type: string
-      tail-call-interp:
-        required: false
-        type: boolean
-        default: false
 
 permissions:
   contents: read
@@ -55,7 +51,7 @@ jobs:
           --enable-slower-safety \
           --enable-safety \
           ${{ inputs.free-threading && '--disable-gil' || '' }} \
-          ${{ inputs.tail-call-interp && '--with-tail-call-interp' || '' }} \
+          --with-tail-call-interp \
           --prefix=/opt/python-dev \
           --with-openssl="$(brew --prefix openssl@3.5)"
     - name: Build CPython
diff --git a/.github/workflows/tail-call.yml b/.github/workflows/tail-call.yml
index d4df6aa3b95780..1dc5ea1bc51356 100644
--- a/.github/workflows/tail-call.yml
+++ b/.github/workflows/tail-call.yml
@@ -23,13 +23,6 @@ env:
   LLVM_VERSION: 21
 
 jobs:
-  macos:
-    name: aarch64-apple-darwin/clang
-    uses: ./.github/workflows/reusable-macos.yml
-    with:
-      os: macos-26
-      tail-call-interp: true
-
   linux:
     name: ${{ matrix.target }}
     runs-on: ${{ matrix.runner }}