[MSVC Compatibility] Use a better predicate for __BOOL_DEFINED

Instead of using CPlusPlus, use Bool.  No functionality change is
intended, it just makes things a tad bit more clear.

llvm-svn: 242957

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 62cc72212bc..88c2e760f2a 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -643,9 +643,10 @@ protected:
 
       if (Opts.CXXExceptions)
         Builder.defineMacro("_CPPUNWIND");
+    }
 
+    if (Opts.Bool)
       Builder.defineMacro("__BOOL_DEFINED");
-    }
 
     if (!Opts.CharIsSigned)
       Builder.defineMacro("_CHAR_UNSIGNED");