Tag genrules as requiring darwin if they use a mac toolchain.

--
MOS_MIGRATED_REVID=96128887

1 files changed, 7 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppConfiguration.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppConfiguration.java
index e9d2749cad..398c276838 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppConfiguration.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppConfiguration.java
@@ -82,6 +82,13 @@ import javax.annotation.Nullable;
 @SkylarkModule(name = "cpp", doc = "A configuration fragment for C++")
 @Immutable
 public class CppConfiguration extends BuildConfiguration.Fragment {
+
+  /**
+   * String indicating a Mac system, for example when used in a crosstool configuration's host or
+   * target system name.
+   */
+  public static final String MAC_SYSTEM_NAME = "x86_64-apple-macosx";
+
   /**
    * An enumeration of all the tools that comprise a toolchain.
    */