Fix MacOS CI (#2145)

* compile flag for cython

* fix more setups

* bump cereal

* reenable mac build

* don't let that fail the build

Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com>
old-commit-hash: 8e0bb6a7cee869b9aa6a724b20ab8d79141eaad4

.github/workflows/test.yaml

@@ -52,30 +52,30 @@ jobs:
                 scons -j$(nproc) && \
                 $UNIT_TEST selfdrive/car"
 
-  #build_mac:
-  #  name: build macos
-  #  runs-on: macos-10.15
-  #  timeout-minutes: 60
-  #  steps:
-  #  - uses: actions/checkout@v2
-  #    with:
-  #      submodules: true
-  #  - name: Cache dependencies
-  #    id: dependency-cache
-  #    uses: actions/cache@v2
-  #    with:
-  #      path: |
-  #        ~/.pyenv
-  #        ~/Library/Caches/pip
-  #        ~/Library/Caches/pipenv
-  #        ~/Library/Caches/Homebrew
-  #      key: ${{ hashFiles('tools/mac_setup.sh') }}
-  #  - name: Install dependencies
-  #    run: ./tools/mac_setup.sh
-  #  - name: Build openpilot
-  #    run: eval "$(pyenv init -)" && scons -j$(nproc)
-  #  - name: Brew cleanup
-  #    run: brew cleanup # keeps our cache small
+  build_mac:
+    name: build macos
+    runs-on: macos-10.15
+    timeout-minutes: 60
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        submodules: true
+    - name: Cache dependencies
+      id: dependency-cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.pyenv
+          ~/Library/Caches/pip
+          ~/Library/Caches/pipenv
+          ~/Library/Caches/Homebrew
+        key: ${{ hashFiles('tools/mac_setup.sh') }}
+    - name: Install dependencies
+      run: ./tools/mac_setup.sh
+    - name: Build openpilot
+      run: eval "$(pyenv init -)" && scons -j$(nproc)
+    - name: Brew cleanup
+      run: brew cleanup || true # keeps our cache small
 
   docker_push:
     name: docker push