Driver: implement driver automagic support for -lcc_kext

Rewrite linker arguments to use libclang_rt.cc_kext.a
instead of gcc-specific libcc_kext.a

Resolves Radar 7808495

llvm-svn: 114193

clang/lib/Driver/Tools.cpp

@@ -116,6 +116,8 @@ static void AddLinkerInputs(const ToolChain &TC,
     // Handle reserved library options.
     if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
       TC.AddCXXStdlibLibArgs(Args, CmdArgs);
+    } else if (A.getOption().matches(options::OPT_Z_reserved_lib_cckext)) {
+      TC.AddCCKextLibArgs(Args, CmdArgs);
     } else
       A.renderAsInput(Args, CmdArgs);
   }