Merge pull request #1484 from murraystevenson/macCI10.6

CI : Reinstate `macos-arm64` job

Author: johnhaddon

.github/workflows/main.yml

@@ -33,7 +33,8 @@ jobs:
           linux-gcc11,
           linux-debug-gcc11,
           windows,
-          windows-debug
+          windows-debug,
+          macos-arm64
         ]
 
         include:
@@ -76,6 +77,15 @@ jobs:
             publish: false
             jobs: 4
 
+          - name: macos-arm64
+            os: macos-14
+            buildType: RELEASE
+            options: .github/workflows/main/options.posix
+            dependenciesURL: https://github.com/GafferHQ/dependencies/releases/download/10.0.0/gafferDependencies-10.0.0-macos-arm64.tar.gz
+            tests: testCore testCorePython testScene testImage testAlembic testUSD testVDB
+            publish: true
+            jobs: 3
+
     runs-on: ${{ matrix.os }}
 
     container: ${{ matrix.containerImage }}

.github/workflows/main/options.posix

@@ -63,4 +63,5 @@ ENV_VARS_TO_IMPORT = "PATH CI"
 
 if platform.system() == "Darwin" :
 	os.environ["DYLD_FRAMEWORK_PATH"] = libs
-	ENV_VARS_TO_IMPORT += " DYLD_FRAMEWORK_PATH"
+	os.environ["PYTHONHOME"] = libs + "/Python.framework/Versions/" + pythonABIVersion
+	ENV_VARS_TO_IMPORT += " DYLD_FRAMEWORK_PATH PYTHONHOME"