Add a define for the ObjFW runtime ABI version.

This removes __has_feature(objc_msg_lookup_stret), as it is not required
anymore after this patch.

Patch by Jonathan Schleifer!

llvm-svn: 190791

1 files changed, 6 insertions, 2 deletions

diff --git a/clang/lib/Basic/ObjCRuntime.cpp b/clang/lib/Basic/ObjCRuntime.cpp
index 9bd433a0649..be50fc4fe24 100644
--- a/clang/lib/Basic/ObjCRuntime.cpp
+++ b/clang/lib/Basic/ObjCRuntime.cpp
@@ -71,16 +71,20 @@ bool ObjCRuntime::tryParse(StringRef input) {
     kind = ObjCRuntime::GCC;
   } else if (runtimeName == "objfw") {
     kind = ObjCRuntime::ObjFW;
+    Version = VersionTuple(0, 8);
   } else {
     return true;
   }
   TheKind = kind;
-  
+
   if (dash != StringRef::npos) {
     StringRef verString = input.substr(dash + 1);
-    if (Version.tryParse(verString)) 
+    if (Version.tryParse(verString))
       return true;
   }
 
+  if (kind == ObjCRuntime::ObjFW && Version > VersionTuple(0, 8))
+    Version = VersionTuple(0, 8);
+
   return false;
 }