From a4d5f7b9b270d3fa85e8a0a1608c4205dff744d9 Mon Sep 17 00:00:00 2001
From: Stephen Kelly <steveire@gmail.com>
Date: Sun, 4 Dec 2011 16:32:13 +0100
Subject: Add API to get the ordered includes for a target.

---
 Source/cmTarget.cxx | 24 ++++++++++++++++++++++++
 Source/cmTarget.h   |  3 +++
 2 files changed, 27 insertions(+)

diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 0c79b30..5c902e1 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -4676,6 +4676,30 @@ cmTarget::GetLinkInformation(const char* config)
 }
 
 //----------------------------------------------------------------------------
+std::vector<std::string> cmTarget::GetIncludeDirectories()
+{
+  std::vector<std::string> includes;
+  const char *prop = this->GetProperty("INCLUDE_DIRECTORIES");
+  if(prop)
+    {
+    cmSystemTools::ExpandListArgument(prop, includes);
+    }
+
+  std::set<std::string> uniqueIncludes;
+  std::vector<std::string> orderedAndUniqueIncludes;
+  for(std::vector<std::string>::const_iterator
+      li = includes.begin(); li != includes.end(); ++li)
+    {
+    if(uniqueIncludes.insert(*li).second)
+      {
+      orderedAndUniqueIncludes.push_back(*li);
+      }
+    }
+
+  return orderedAndUniqueIncludes;
+}
+
+//----------------------------------------------------------------------------
 cmTargetLinkInformationMap
 ::cmTargetLinkInformationMap(cmTargetLinkInformationMap const& r): derived()
 {
diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index 59f0184..dfed499 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -458,6 +458,9 @@ public:
       directory.  */
   bool UsesDefaultOutputDir(const char* config, bool implib);
 
+  /** Get the include directories for this target.  */
+  std::vector<std::string> GetIncludeDirectories();
+
 private:
   /**
    * A list of direct dependencies. Use in conjunction with DependencyMap.
-- 
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