Fix macOS arm64 build by setting deployment target early and updating vcpkg baseline

- Add early MACOSX_DEPLOYMENT_TARGET=11.0 normalization in setup.py
  This runs before vcpkg invocation, ensuring all dependencies inherit the correct target.
  Fixes Arrow 21.0.0 compilation when vcpkg builds from source.

- Update vcpkg baseline to commit with krb5 1.22.2
  Previous baseline had broken krb5 1.22.1 autoreconf on macOS ARM64.
  Newer baseline has krb5 1.22.2 which fixes this issue.
  Removes need for vcpkg.json package overrides.

Signed-off-by: Tim Paine <3105306+timkpaine@users.noreply.github.com>

Author: timkpaine

.github/workflows/build.yml

@@ -273,7 +273,7 @@ jobs:
           run: make dist-py-cibw
           env:
             CIBW_BUILD: "${{ matrix.cibuildwheel }}-macos*"
-            CIBW_ENVIRONMENT_MACOS: CCACHE_DIR="/Users/runner/work/csp/csp/.ccache" VCPKG_DEFAULT_BINARY_CACHE="${{ env.VCPKG_DEFAULT_BINARY_CACHE }}" VCPKG_DOWNLOADS="${{ env.VCPKG_DOWNLOADS }}"
+            CIBW_ENVIRONMENT_MACOS: MACOSX_DEPLOYMENT_TARGET="11.0" OSX_DEPLOYMENT_TARGET="11.0" CCACHE_DIR="/Users/runner/work/csp/csp/.ccache" VCPKG_DEFAULT_BINARY_CACHE="${{ env.VCPKG_DEFAULT_BINARY_CACHE }}" VCPKG_DOWNLOADS="${{ env.VCPKG_DOWNLOADS }}"
             CIBW_ARCHS_MACOS: arm64
           if: ${{ matrix.os == 'macos-14' }}
 

setup.py

@@ -8,6 +8,26 @@
 
 from skbuild import setup
 
+
+def _parse_macos_target(value: str):
+    try:
+        parts = value.split(".")
+        major = int(parts[0]) if len(parts) > 0 else 0
+        minor = int(parts[1]) if len(parts) > 1 else 0
+        return major, minor
+    except Exception:
+        return 0, 0
+
+
+if platform.system() == "Darwin":
+    # Ensure deployment target is set before any vcpkg invocation.
+    _deploy_target = os.environ.get("MACOSX_DEPLOYMENT_TARGET") or os.environ.get("OSX_DEPLOYMENT_TARGET", "11.0")
+    # Apple Silicon requires macOS 11.0+.
+    if platform.machine() == "arm64" and _parse_macos_target(_deploy_target) < (11, 0):
+        _deploy_target = "11.0"
+    os.environ["MACOSX_DEPLOYMENT_TARGET"] = _deploy_target
+    os.environ["OSX_DEPLOYMENT_TARGET"] = _deploy_target
+
 CSP_USE_VCPKG = os.environ.get("CSP_USE_VCPKG", "1").lower() in ("1", "on")
 # Allow arg to override default / env
 if "--csp-no-vcpkg" in sys.argv:
@@ -139,8 +159,7 @@
     os.environ["CMAKE_BUILD_PARALLEL_LEVEL"] = str(multiprocessing.cpu_count())
 
 if platform.system() == "Darwin":
-    os.environ["MACOSX_DEPLOYMENT_TARGET"] = os.environ.get("OSX_DEPLOYMENT_TARGET", "10.15")
-    cmake_args.append(f"-DCMAKE_OSX_DEPLOYMENT_TARGET={os.environ.get('OSX_DEPLOYMENT_TARGET', '10.15')}")
+    cmake_args.append(f"-DCMAKE_OSX_DEPLOYMENT_TARGET={os.environ['MACOSX_DEPLOYMENT_TARGET']}")
 
 if which("ccache") and os.environ.get("CSP_USE_CCACHE", "") != "0":
     cmake_args.append("-DCSP_USE_CCACHE=On")

vcpkg.json

@@ -41,6 +41,10 @@
     {
       "name": "arrow",
       "version": "21.0.0"
+    },
+    {
+      "name": "krb5",
+      "version": "1.21.3"
     }
   ],
   "builtin-baseline": "b94ade01f19e4436d8c8a16a5c52e8c802ef67dd"