libclang: When invoking external clang process to get code completion results,

pass -ccc-clang-cxx to force C++ support (even if the binary was built without
it).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107324 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/libclang/CIndexCodeCompletion.cpp b/tools/libclang/CIndexCodeCompletion.cpp
index fa1fd915596fc215de2db253fef8764696c455a9..277fadf683bc7168a3e5712fcee8c6145d04b012 100644 (file)
--- a/tools/libclang/CIndexCodeCompletion.cpp
+++ b/tools/libclang/CIndexCodeCompletion.cpp
@@ -291,6 +291,9 @@ CXCodeCompleteResults *clang_codeComplete(CXIndex CIdx,
   llvm::sys::Path ClangPath = CXXIdx->getClangPath();
   argv.push_back(ClangPath.c_str());
 
+  // Always use Clang C++ support.
+  argv.push_back("-ccc-clang-cxx");
+  
   // Add the '-fsyntax-only' argument so that we only perform a basic
   // syntax check of the code.
   argv.push_back("-fsyntax-only");