From 5d384bd6f76226be1b6a72a9d3c8b86ca1971848 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 27 Mar 2026 16:45:46 +0000
Subject: [PATCH] Fix R-CMD-check CI failure: install dev rlang from GitHub for
 R-devel builds

The CRAN version of rlang uses the PREXPR C symbol which was removed
from R-devel's internal API. This conditionally installs the development
version of rlang from r-lib/rlang for R-devel builds only, which
contains the fix for PREXPR removal.

Agent-Logs-Url: https://github.com/hreinwald/drc/sessions/369087cc-62a9-4f4e-9130-31cc453b547e

Co-authored-by: hreinwald <115988583+hreinwald@users.noreply.github.com>
---
 .github/workflows/R-CMD-check.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 6ae0152..5d85827 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -43,7 +43,9 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: any::rcmdcheck
+          extra-packages: |
+            any::rcmdcheck
+            ${{ matrix.config.r == 'devel' && 'r-lib/rlang' || '' }}
           needs: check
 
       - uses: r-lib/actions/check-r-package@v2