experimental - fix protobuf build on mac

Author: sampajano

.github/workflows/make-plugin-mac-os.yml

@@ -14,25 +14,48 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Install build utils
-      run: brew install coreutils automake libtool
+      run: |
+        brew install coreutils automake autoconf libtool cmake ninja pkg-config git curl
     - name: Checkout protobuf code
       run: |
         ./scripts/init_submodules.sh
-        cd ./third_party/protobuf
-        git fetch --tags
-        git checkout v27.1
-        cd ../..
+        # We'll replace the protobuf submodule with a full clone at v27.1 below
     # Protobuf build instructions from:
     # https://github.com/protocolbuffers/protobuf/blob/master/src/README.md
-    - name: Build protobuf (configure & make)
+    - name: Build Abseil and Protobuf (CMake)
       run: |
-        cd ./third_party/protobuf
-        ./autogen.sh
-        ./configure
-        make -j$(nproc)
-        sudo make install
-    - name: Remove dynamite dependencies (similar to `-static` on linux)
-      run: sudo rm /usr/local/lib/libproto*.dylib
+        set -euxo pipefail
+        # Work in third_party
+        cd third_party
+        
+        # Ensure a fresh abseil-cpp and protobuf
+        rm -rf abseil-cpp protobuf
+        
+        # Build and install Abseil
+        git clone --depth 1 https://github.com/abseil/abseil-cpp.git
+        cd abseil-cpp
+        cmake -S . -B cmake/build \
+          -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+          -DCMAKE_BUILD_TYPE=Release
+        cmake --build cmake/build --config Release
+        sudo cmake --install cmake/build
+        cd ..
+        
+        # Clone and build Protobuf v27.1
+        git clone https://github.com/protocolbuffers/protobuf.git
+        cd protobuf
+        git checkout v27.1
+        git submodule update --init --recursive
+        cmake -S . -B build \
+          -DCMAKE_BUILD_TYPE=Release \
+          -Dprotobuf_BUILD_TESTS=OFF \
+          -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+          -DCMAKE_CXX_STANDARD=17
+        cmake --build build --config Release
+        sudo cmake --install build
+        cd ../..
+    - name: "Remove dynamic proto dylibs (like -static on linux)"
+      run: sudo rm -f /usr/local/lib/libproto*.dylib
     - name: make
       run: make clean && make plugin
     - name: move