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lidavidm pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/arrow-adbc.git


The following commit(s) were added to refs/heads/main by this push:
     new ea6209fa1 ci: override R Makevars for nightly verification (#4639)
ea6209fa1 is described below

commit ea6209fa1cf25a82a838d1b3f0c7b76c71694856
Author: David Li <[email protected]>
AuthorDate: Wed Aug 5 10:32:11 2026 +0900

    ci: override R Makevars for nightly verification (#4639)
---
 .github/workflows/nightly-verify.yml | 4 ++++
 .github/workflows/verify.yml         | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/.github/workflows/nightly-verify.yml 
b/.github/workflows/nightly-verify.yml
index 3142c329b..5e7106fcc 100644
--- a/.github/workflows/nightly-verify.yml
+++ b/.github/workflows/nightly-verify.yml
@@ -185,6 +185,10 @@ jobs:
           # Required for macOS
           export CXXFLAGS="${CXXFLAGS} -D_LIBCPP_DISABLE_AVAILABILITY"
           echo "CXXFLAGS=${CXXFLAGS}"
+          if [[ $(uname) == "Linux" ]]; then
+            # conda-forge's R makevars doesn't seem to define CXX20 on Linux
+            export R_MAKEVARS_USER="$(pwd)/arrow-adbc/ci/r_makevars_cxx20"
+          fi
           ./arrow-adbc/dev/release/verify-release-candidate.sh $VERSION 0
 
       - name: Verify
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 715936c43..f6ccfefac 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -132,6 +132,10 @@ jobs:
           # Required for macOS
           export CXXFLAGS="${CXXFLAGS} -D_LIBCPP_DISABLE_AVAILABILITY"
           echo "CXXFLAGS=${CXXFLAGS}"
+          if [[ $(uname) == "Linux" ]]; then
+            # conda-forge's R makevars doesn't seem to define CXX20 on Linux
+            export R_MAKEVARS_USER="$(pwd)/ci/r_makevars_cxx20"
+          fi
           ./dev/release/verify-release-candidate.sh ${INPUTS_VERSION} 
${INPUTS_RC}
       - name: Verify
         if: matrix.os == 'windows-latest'

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