Driver: Factor out some code for handling the C++ standard library.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113890 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 25 insertions, 0 deletions

diff --git a/lib/Driver/ToolChain.cpp b/lib/Driver/ToolChain.cpp
index 94c1c6beb9..0f63046409 100644
--- a/lib/Driver/ToolChain.cpp
+++ b/lib/Driver/ToolChain.cpp
@@ -174,3 +174,28 @@ std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args) const {
   return ComputeLLVMTriple(Args);
 }
 
+ToolChain::CXXStdlibType ToolChain::GetCXXStdlibType(const ArgList &Args) const{
+  return ToolChain::CST_Libstdcxx;
+}
+
+void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &Args,
+                                             ArgStringList &CmdArgs) const {
+  CXXStdlibType Type = GetCXXStdlibType(Args);
+
+  switch (Type) {
+  case ToolChain::CST_Libstdcxx:
+    // Currently handled by the mass of goop in InitHeaderSearch.
+    break;
+  }
+}
+
+void ToolChain::AddClangCXXStdlibLibArgs(const ArgList &Args,
+                                         ArgStringList &CmdArgs) const {
+  CXXStdlibType Type = GetCXXStdlibType(Args);
+
+  switch (Type) {
+  case ToolChain::CST_Libstdcxx:
+    CmdArgs.push_back("-lstdc++");
+    break;
+  }
+}