From 440bbf08711e9a784f90f1d2541e5d204807161a Mon Sep 17 00:00:00 2001
From: Andy Cedilnik <andy.cedilnik@kitware.com>
Date: Fri, 23 Feb 2007 09:45:04 -0500
Subject: [PATCH] BUG: Produce error when include directories is invoked with
 an empty list

---
 Source/cmIncludeDirectoryCommand.cxx | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/Source/cmIncludeDirectoryCommand.cxx b/Source/cmIncludeDirectoryCommand.cxx
index a34b1164c..cf55f2972 100644
--- a/Source/cmIncludeDirectoryCommand.cxx
+++ b/Source/cmIncludeDirectoryCommand.cxx
@@ -50,8 +50,19 @@ bool cmIncludeDirectoryCommand
       }
     if(i->size() == 0)
       {
-      cmSystemTools::Error
-        ("Empty Include Directory Passed into INCLUDE_DIRECTORIES command.");
+      const char* versionValue =
+        this->Makefile->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
+      const char* errorMessage
+        = "Empty Include Directory Passed into INCLUDE_DIRECTORIES command.";
+      if(atof(versionValue) < 2.5)
+        {
+        cmSystemTools::Error(errorMessage);
+        }
+      else
+        {
+        this->SetError(errorMessage);
+        return 0;
+        }
       }
     std::string unixPath = *i;
     if (!cmSystemTools::IsOff(unixPath.c_str()))