From 2ca5d01c0f757f0a93126e6cea81edde5cbeeea7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?I=C3=B1aki=20=C3=9Acar?= <iucar@fedoraproject.org>
Date: Tue, 1 Sep 2026 16:08:04 +0200
Subject: [PATCH 1/2] add -Werror to CXXFLAGS for dev CI job

---
 .github/workflows/ci.yaml | 4 ++++
 ChangeLog                 | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index e8ad0ffa7..3503d6553 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -52,6 +52,7 @@ jobs:
           - name: dev
             cntr: rcpp/ci-dev
             r: RD
+            cxxflags: -Werror
 
     steps:
       - uses: actions/checkout@v6
@@ -62,6 +63,9 @@ jobs:
       - name: Build
         run: ${{matrix.r }} CMD build --no-build-vignettes --no-manual .
 
+      - name: Set flags
+        run: mkdir -p ~/.R && echo "CXXFLAGS += ${{ matrix.cxxflags }}" >> ~/.R/Makevars
+
       - name: Check
         run: CI=true ${{ matrix.r }} CMD check --no-vignettes --no-manual Rcpp_*.tar.gz
 
diff --git a/ChangeLog b/ChangeLog
index a7f24e628..ec6c09ffe 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2026-09-01  Iñaki Ucar <iucar@fedoraproject.org>
+
+	* .github/workflows/ci.yaml: Add -Werror to CXXFLAGS for dev CI job
+
 2026-08-08  Dirk Eddelbuettel  <edd@debian.org>
 
 	* DESCRIPTION (Version, Date): Roll micro version and date

From ec3e68ed9521e6360406a2d703fcacf2b207ada0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?I=C3=B1aki=20=C3=9Acar?= <iucar@fedoraproject.org>
Date: Tue, 1 Sep 2026 17:03:37 +0200
Subject: [PATCH 2/2] implement this in a new yaml file instead

---
 .github/workflows/ci.yaml       |  4 ----
 .github/workflows/warnings.yaml | 36 +++++++++++++++++++++++++++++++++
 ChangeLog                       |  2 +-
 3 files changed, 37 insertions(+), 5 deletions(-)
 create mode 100644 .github/workflows/warnings.yaml

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 3503d6553..e8ad0ffa7 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -52,7 +52,6 @@ jobs:
           - name: dev
             cntr: rcpp/ci-dev
             r: RD
-            cxxflags: -Werror
 
     steps:
       - uses: actions/checkout@v6
@@ -63,9 +62,6 @@ jobs:
       - name: Build
         run: ${{matrix.r }} CMD build --no-build-vignettes --no-manual .
 
-      - name: Set flags
-        run: mkdir -p ~/.R && echo "CXXFLAGS += ${{ matrix.cxxflags }}" >> ~/.R/Makevars
-
       - name: Check
         run: CI=true ${{ matrix.r }} CMD check --no-vignettes --no-manual Rcpp_*.tar.gz
 
diff --git a/.github/workflows/warnings.yaml b/.github/workflows/warnings.yaml
new file mode 100644
index 000000000..357b5b4ae
--- /dev/null
+++ b/.github/workflows/warnings.yaml
@@ -0,0 +1,36 @@
+# Run CI for R using https://eddelbuettel.github.io/r-ci/
+
+name: warnings
+
+on:
+  push:
+  pull_request:
+
+env:
+  _R_CHECK_FORCE_SUGGESTS_: "false"
+  RCPP_CXXFLAGS: "-Werror"
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    container: rocker/drd
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+
+      - name: Setup
+        uses: eddelbuettel/github-actions/r-ci@master
+
+      - name: Dependencies
+        run: ./run.sh install_deps
+
+      - name: Set flags
+        run: mkdir -p ~/.R && echo "CXXFLAGS += $RCPP_CXXFLAGS" >> ~/.R/Makevars
+
+      - name: Test
+        run: ./run.sh run_tests
+
+      - name: Logs
+        run: ./run.sh dump_logs
+        if: failure()
diff --git a/ChangeLog b/ChangeLog
index ec6c09ffe..81c32a802 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,6 @@
 2026-09-01  Iñaki Ucar <iucar@fedoraproject.org>
 
-	* .github/workflows/ci.yaml: Add -Werror to CXXFLAGS for dev CI job
+	* .github/workflows/warnings.yaml: Add new CI file with -Werror enabled
 
 2026-08-08  Dirk Eddelbuettel  <edd@debian.org>