Merge pull request #65024 from yedpodtrzitko/yed/fix-macos-missing-vulkan

fix: graceful exit on macOS with missing Vulkan SDK

platform/macos/detect.py

@@ -54,11 +54,13 @@ def get_mvk_sdk_path():
         return [int_or_zero(i) for i in a.split(".")]
 
     dirname = os.path.expanduser("~/VulkanSDK")
-    files = os.listdir(dirname)
+    if not os.path.exists(dirname):
+        return ""
 
     ver_file = "0.0.0.0"
     ver_num = ver_parse(ver_file)
 
+    files = os.listdir(dirname)
     for file in files:
         if os.path.isdir(os.path.join(dirname, file)):
             ver_comp = ver_parse(file)
@@ -145,7 +147,7 @@ def configure(env):
         env.Append(LINKFLAGS=["-isysroot", "$MACOS_SDK_PATH"])
 
     else:  # osxcross build
-        root = os.environ.get("OSXCROSS_ROOT", 0)
+        root = os.environ.get("OSXCROSS_ROOT", "")
         if env["arch"] == "arm64":
             basecmd = root + "/target/bin/arm64-apple-" + env["osxcross_sdk"] + "-"
         else:
@@ -248,7 +250,7 @@ def configure(env):
                     env.Append(LINKFLAGS=["-L" + mvk_path])
             if not mvk_found:
                 mvk_path = get_mvk_sdk_path()
-                if os.path.isfile(os.path.join(mvk_path, "libMoltenVK.a")):
+                if mvk_path and os.path.isfile(os.path.join(mvk_path, "libMoltenVK.a")):
                     mvk_found = True
                     env.Append(LINKFLAGS=["-L" + mvk_path])
             if not mvk_found: