From 129ab7c24b4e56bbd194284d75b73c507f55ef0c Mon Sep 17 00:00:00 2001
From: Tom Most <twm@freecog.net>
Date: Sat, 17 Apr 2021 18:22:12 -0700
Subject: [PATCH 1/2] Add PEP 517 / PEP 518 metadata

This moves the build-time dependency on incremental to a declarative
file. See [1] for background.

[1]: https://twistedmatrix.com/trac/ticket/9457
---
 pyproject.toml | 8 ++++++++
 tox.ini        | 1 +
 2 files changed, 9 insertions(+)

diff --git a/pyproject.toml b/pyproject.toml
index 1173adff..f97064fa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,11 @@
+[build-system]
+requires = [
+    "setuptools >= 35.0.2",
+    "wheel >= 0.29.0",
+    "incremental >= 21.3.0",
+]
+build-backend = "setuptools.build_meta"
+
 [tool.towncrier]
 package = "treq"
 package_dir = "src"
diff --git a/tox.ini b/tox.ini
index 530d8be0..f1bd38af 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,6 +4,7 @@ envlist =
     {pypy3,py36,py37,py38,py39}-twisted_latest,
     {pypy3,py36,py37,py38,py39}-twisted_trunk,
     towncrier, twine, check-manifest, flake8, docs
+isolated_build = true
 
 [testenv]
 extras = dev

From 138da366f838aaec425333e320544ac2524dbcb9 Mon Sep 17 00:00:00 2001
From: Tom Most <twm@freecog.net>
Date: Sat, 17 Apr 2021 19:04:27 -0700
Subject: [PATCH 2/2] Add change fragment

---
 changelog.d/329.feature.rst | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/329.feature.rst

diff --git a/changelog.d/329.feature.rst b/changelog.d/329.feature.rst
new file mode 100644
index 00000000..0d1ec333
--- /dev/null
+++ b/changelog.d/329.feature.rst
@@ -0,0 +1 @@
+PEP 517/518 ``build-system`` metadata is now provided in ``pyproject.toml``.