Set host apple platform type to MACOS

RELNOTES: None.
PiperOrigin-RevId: 157847930

1 files changed, 4 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/apple/AppleCommandLineOptions.java b/src/main/java/com/google/devtools/build/lib/rules/apple/AppleCommandLineOptions.java
index 23977e16b0..3e5e1e22f6 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/apple/AppleCommandLineOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/apple/AppleCommandLineOptions.java
@@ -439,6 +439,10 @@ public class AppleCommandLineOptions extends FragmentOptions {
     host.tvOsSdkVersion = tvOsSdkVersion;
     host.macOsSdkVersion = macOsSdkVersion;
     host.appleBitcodeMode = appleBitcodeMode;
+    // The host apple platform type will always be MACOS, as no other apple platform type can
+    // currently execute build actions. If that were the case, a host_apple_platform_type flag might
+    // be needed. 
+    host.applePlatformType = PlatformType.MACOS;
 
     return host;
   }