[c-flags] Fix macos github actions

Author: DieTime

.github/workflows/macos.yml

@@ -19,13 +19,20 @@ jobs:
           find /usr/local/bin -lname '*/Library/Frameworks/Python.framework/*' -delete
           sudo rm -rf /Library/Frameworks/Python.framework/
           brew install --force python3 && brew unlink python3 && brew unlink python3 && brew link --overwrite python3
-
-      - name: Install meson build system
-        run: python3 -m pip install meson
+          # Delete nonsensical PEP 668 breakage. It is the wrong solution to the problem and isn't designed to be
+          # productive -- only victim blaming -- however it bites particularly badly because this is a container/VM
+          # See commit 5c479d7a13a518c18ccb4dc3b6bdd7bfc2a9bdb5 for a more thorough analysis.
+          find /usr/local/Cellar/python* -name EXTERNALLY-MANAGED -print0 | xargs -0 rm -vf
 
       - name: Install ninja build system
         run: brew install ninja
 
+      - name: Install meson build system
+        run: |
+          python3 -m pip install --upgrade setuptools
+          python3 -m pip install --upgrade pip
+          python3 -m pip install meson
+
       - name: Configure build directory for shared library
         run: meson setup builddir -Dtests=true -Dexamples=true -Ddefault_library=shared