Address @robinlinden comments.

.bazelrc

@@ -1 +1,2 @@
 build --features=layering_check
+build --enable_bzlmod

.bcr/presubmit.yml

@@ -3,7 +3,7 @@ matrix:
   # instead of --std=c++20
   platform:
   - debian11
-  - ubuntu2024
+  - ubuntu2204
   - macos
   - macos-arm64
   - windows

.github/workflows/build.yaml

@@ -14,25 +14,30 @@ on:
 jobs:
 
   test_bazel:
-    name: "Bazel, ${{ matrix.compiler }}, ${{ matrix.os }}"
+    name: "Bazel, ${{ matrix.cxx }}, ${{ matrix.os }}"
     strategy:
       fail-fast: false
       matrix:
         include:
           - os: ubuntu-latest
-            compiler: g++
+            cxx: g++
+            cc: gcc
 
           - os: ubuntu-latest
-            compiler: clang++
+            cxx: clang++
+            cc: clang
 
           - os: macos-latest
-            compiler: g++
+            cxx: g++
+            cc: gcc
 
           - os: macos-latest
-            compiler: clang++
+            cxx: clang++
+            cc: clang
 
           - os: windows-latest
-            compiler: cl
+            cxx: cl
+            cc: cl
 
     runs-on: ${{ matrix.os }}
     steps:
@@ -41,12 +46,14 @@ jobs:
 
       - name: "Build with Bazel"
         env:
-          CC: ${{ matrix.compiler }}
+          CC: ${{ matrix.cc }}
+          CXX: ${{ matrix.cxx }}
         run: bazel build ...
 
       - name: "Tests with Bazel"
         env:
-          CC: ${{ matrix.compiler }}
+          CC: ${{ matrix.cc }}
+          CXX: ${{ matrix.cxx }}
         run: bazel test --test_output=all ...
 
   test_cmake:

tools/test_bazel.sh

@@ -5,12 +5,9 @@
 # -------
 # - Version >= 7 are supported
 # - Version <= 6 fail with the error:
-#   ERROR: Analysis of target '//:component' failed; build aborted: no such
-#          package '@rules_cc//cc/compiler': BUILD file not found in directory
-#          'cc/compiler' of external repository @rules_cc. Add a BUILD file to a
-#          directory to mark it as a package.
-#
-
+#   Error:
+#     external/googletest~1.14.0.bcr.1/googletest/include/gtest/internal/gtest-port.h:279:2:
+#     error: #error C++ versions less than C++14 are not supported.
 for ver in \
   "7.0.0" \
   "8.0.0"