diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 534a9601..e3198bfa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -186,7 +186,6 @@ jobs:
           brew link --overwrite "$pkg"
         done
         brew upgrade
-        brew install libomp
         
     - name: Restore Cache LLVM/Clang runtime build directory
       uses: actions/cache/restore@v3
@@ -206,11 +205,9 @@ jobs:
           cd ./cling 
           git checkout tags/v${{ matrix.cling-version }}
           cd ..
-          CLING_DIR="$(pwd)/cling"
-          
-          git clone --depth=1 -b cling-llvm${{ matrix.clang-runtime }} https://github.com/root-project/llvm-project.git clang-dev
+          git clone --depth=1 -b cling-llvm${{ matrix.clang-runtime }} https://github.com/root-project/llvm-project.git 
         else # repl
-          git clone --depth=1 -b release/${{ matrix.clang-runtime }}.x https://github.com/llvm/llvm-project.git clang-dev
+          git clone --depth=1 -b release/${{ matrix.clang-runtime }}.x https://github.com/llvm/llvm-project.git 
         fi
         cd clang-dev
         # Build
@@ -218,30 +215,24 @@ jobs:
         mkdir inst
         if [[ "${cling_on}" == "ON" ]]; then
           cd build
-          #FIXME: Unable to compile root-project/llvm-project openmp
-          #on osx on Github runner, despite being able to locally
-          os="${{ matrix.os }}"
-          if [[ "${os}" == "macos"* ]]; then
-            PROJECTS=clang
-          else
-            PROJECTS='"clang;openmp"'
-          fi
-          cmake -DLLVM_ENABLE_PROJECTS=$PROJECTS              \
+          cmake -DLLVM_ENABLE_PROJECTS="clang;openmp"         \
                 -DLLVM_EXTERNAL_PROJECTS=cling                \
-                -DLLVM_EXTERNAL_CLING_SOURCE_DIR=$CLING_DIR   \
+                -DLLVM_EXTERNAL_CLING_SOURCE_DIR=../../cling  \
                 -DLLVM_TARGETS_TO_BUILD="host;NVPTX"          \
                 -DCMAKE_BUILD_TYPE=Release                    \
-                -DLLVM_OPTIMIZED_TABLEGEN=OFF                 \
                 -DLLVM_ENABLE_ASSERTIONS=ON                   \
+                -DLLVM_ENABLE_LLD=ON                          \
                 -DCLANG_ENABLE_STATIC_ANALYZER=OFF            \
                 -DCLANG_ENABLE_ARCMT=OFF                      \
                 -DCLANG_ENABLE_FORMAT=OFF                     \
                 -DCLANG_ENABLE_BOOTSTRAP=OFF                  \
                 -DCMAKE_INSTALL_PREFIX=../inst                \
-                -DLLVM_ENABLE_LLD=ON                          \
-                -DLLVM_BUILD_TESTS=OFF                        \
                 ../llvm
-          cmake --build . --target all --parallel ${{ env.ncpus }}
+          cmake --build . --target clang --parallel ${{ env.ncpus }}
+          cmake --build . --target cling --parallel ${{ env.ncpus }}
+          cmake --build . --target openmp --parallel ${{ env.ncpus }}
+          # Now build gtest.a and gtest_main for CppInterOp to run its tests.
+          cmake --build . --target gtest_main --parallel ${{ env.ncpus }}
           cmake --build . --target install --parallel ${{ env.ncpus }}
         else
           # Apply patches
@@ -251,7 +242,6 @@ jobs:
           cmake -DLLVM_ENABLE_PROJECTS="clang;openmp"         \
                 -DLLVM_TARGETS_TO_BUILD="host;NVPTX"          \
                 -DCMAKE_BUILD_TYPE=Release                    \
-                -DLLVM_OPTIMIZED_TABLEGEN=OFF                 \
                 -DLLVM_ENABLE_ASSERTIONS=ON                   \
                 -DCLANG_ENABLE_STATIC_ANALYZER=OFF            \
                 -DCLANG_ENABLE_ARCMT=OFF                      \
@@ -267,6 +257,7 @@ jobs:
         cd ..
         rm -rf $(find . -maxdepth 1 ! -name "inst" ! -name ".")
         cd ..
+        mv llvm-project clang-dev
         
     - name: Save Cache LLVM/Clang runtime build directory
       uses: actions/cache/save@v3