Use xcode-select instead

Embark seems to use xcode-select on GitHub Actions to switch to a newer version of XCode instead of switching the macOS version itself: https://twitter.com/Ca1ne/status/1372120481147535363
LiveSplit · Mar 17, 2021 · 268e186 · 268e186
1 parent 0d4316d
commit 268e186
Showing 1 changed file with 9 additions and 12 deletions.
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
@@ -84,9 +84,6 @@ jobs:
 
           # macOS
           - macOS aarch64
-          # 32-bit macOS is deprecated and doesn't build:
-          # https://github.com/CryZe/livesplit-core/runs/220089673
-          # - macOS i686
           - macOS x86_64
 
           # iOS
@@ -469,20 +466,13 @@ jobs:
           # macOS
           - label: macOS aarch64
             target: aarch64-apple-darwin
-            os: macOS-11.0
+            os: macOS-latest
             cross: skip
             tests: skip
             install_target: true
-          # FIXME: Switch OS back to latest once that means 11.
-          # FIXME: Switch OS to ARM macOS once GitHub Actions provides that, 
+          # FIXME: Switch OS to ARM macOS once GitHub Actions provides that,
           # use the toolchain instead of the target and run the tests.
 
-          # - label: macOS i686
-          #   target: i686-apple-darwin
-          #   toolchain: stable-i686-apple-darwin
-          #   os: macOS-latest
-          #   cross: skip
-
           - label: macOS x86_64
             target: x86_64-apple-darwin
             os: macOS-latest
@@ -621,6 +611,13 @@ jobs:
         run: sh .github/workflows/install.sh
         env:
           OS_NAME: ${{ matrix.os }}
+          TARGET: ${{ matrix.target }}
+
+      - name: Select XCode to use
+        if: matrix.target == 'aarch64-apple-darwin'
+        run: |
+          sudo xcode-select -s "/Applications/Xcode_12.3.app"
+          sudo rm -Rf /Library/Developer/CommandLineTools/SDKs/*
 
       - name: Build Static Library
         run: sh .github/workflows/build_static.sh