Driver: Claim -arch options when pipelining, and claim arguments that

are forwarded to GCC.
 - The later is unfortunate, as it prevents us from generally warning
   about anything interesting on platforms that use a generic
   toolchain. However, we can't do much better without significantly
   complicating things, and generally we should have proper tool chain
   definitions.

llvm-svn: 67293

1 files changed, 6 insertions, 1 deletions

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 5cba6261956..70005906540 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -354,8 +354,13 @@ void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
   for (ArgList::const_iterator 
          it = Args.begin(), ie = Args.end(); it != ie; ++it) {
     Arg *A = *it;
-    if (A->getOption().hasForwardToGCC())
+    if (A->getOption().hasForwardToGCC()) {
+      // It is unfortunate that we have to claim here, as this means
+      // we will basically never report anything interesting for
+      // platforms using a generic gcc.
+      A->claim();
       A->render(Args, CmdArgs);
+    }
   }
   
   RenderExtraToolArgs(CmdArgs);