From 371c02030d68168a9ac0d01efddcf012a2c71cc5 Mon Sep 17 00:00:00 2001
From: Daniel Keller <daniel.kellermartinez@csem.ch>
Date: Sat, 16 May 2026 12:02:20 +0200
Subject: [PATCH] requirements: Pin setuptools<81 to keep regtool working

The vendored lowRISC regtool (register_interface/vendor/lowrisc_opentitan/
util/regtool.py) imports pkg_resources, which was deprecated in setuptools
81.0 and removed in 82.0. Fresh installs now break with:

    ModuleNotFoundError: No module named 'pkg_resources'

Pin setuptools<81 as a stopgap until #73 (PeakRDL migration) lands or the
upstream regtool drops pkg_resources. Resolves #94.
---
 requirements.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/requirements.txt b/requirements.txt
index 55c3f8e8..3ab2bec2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,3 +9,4 @@ sphinx-rtd-theme
 recommonmark
 sphinxcontrib-svg2pdfconverter
 pylint
+setuptools<81