chore: check if we are using mold

Author: ken-matsui

.github/workflows/cpp.yml

@@ -69,6 +69,9 @@ jobs:
         if: matrix.cxx.cmd == 'g++-15'
         run: sudo apt update && sudo apt install -y "gcc-${CXX##*-}"
 
+      - name: Setup mold
+        uses: rui314/setup-mold@v1
+
       - name: Setup Ubuntu dependencies
         if: runner.os == 'Linux'
         uses: ./.github/actions/setup-ubuntu-deps
@@ -85,9 +88,6 @@ jobs:
           mkdir tests/lib-sharness
           mv functions.sh tests/lib-sharness/
 
-      - name: Setup mold
-        uses: rui314/setup-mold@v1
-
       - name: Print versions
         run: make versions
 
@@ -97,6 +97,8 @@ jobs:
       - name: Stage 1 - Print version
         run: ./build/cabin version --verbose
 
+      - run: readelf -p .comment ./build/cabin
+
       - name: Stage 1 - Test
         run: make BUILD=${{ matrix.build }} test -j4
 
@@ -113,6 +115,8 @@ jobs:
         #   # test runs on test profile derived from dev profile (i.e., -fno-lto).    ld cannot read LTO object files
         #   LDFLAGS: ${{ (matrix.build == 'release' && startsWith(matrix.cxx.cmd, 'clang')) && '-flto' || '' }}
 
+      - run: readelf -p .comment ./cabin-out/${{ matrix.build }}/cabin
+
       - name: Stage 2 - Print version
         run: ./cabin-out/${{ matrix.build }}/cabin version --verbose