From 83d46be31e56be9708495a832345bcec7499f904 Mon Sep 17 00:00:00 2001
From: Douglas Gregor <dgregor@apple.com>
Date: Thu, 2 Feb 2012 00:54:52 +0000
Subject: Introduce a -cc1 option "-dependency-graphviz" that determines header
 dependencies and outputs them in GraphViz format.

llvm-svn: 149575
---
 clang/lib/Frontend/CompilerInstance.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'clang/lib/Frontend/CompilerInstance.cpp')

diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 1501da4..97dc708 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -275,7 +275,11 @@ void CompilerInstance::createPreprocessor() {
   const DependencyOutputOptions &DepOpts = getDependencyOutputOpts();
   if (!DepOpts.OutputFile.empty())
     AttachDependencyFileGen(*PP, DepOpts);
+  if (!DepOpts.GraphvizOutputFile.empty())
+    AttachDependencyGraphGen(*PP, DepOpts.GraphvizOutputFile,
+                             getHeaderSearchOpts().Sysroot);
 
+  
   // Handle generating header include information, if requested.
   if (DepOpts.ShowHeaderIncludes)
     AttachHeaderIncludeGen(*PP);
-- 
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