From 9d406cdb656740abcc03de8d655e57b4efe8c81b Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Tue, 7 Jun 2011 08:59:03 -0400
Subject: [PATCH] Fix for bug #11927, external project git clone step always
 runs vs10.

In cmMakefile.cxx GetCMakeCFGInitDirectory is replaced with
GetCMakeFilesDirectory for .rule files.  In some cases with
external projects, that directory will not exist.  With vs10
the .rule files must exist or the rule will run with every build.
This fix creates the path that the .rule file is in.  In addition,
it is now a CMake error if the .rule file can not be created.
---
 Source/cmVisualStudio10TargetGenerator.cxx | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index 6d2338e47..2a4ff9210 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -351,6 +351,9 @@ cmVisualStudio10TargetGenerator::WriteCustomRule(cmSourceFile* source,
     {
     if(!cmSystemTools::FileExists(sourcePath.c_str()))
       {
+      // Make sure the path exists for the file
+      std::string path = cmSystemTools::GetFilenamePath(sourcePath);
+      cmSystemTools::MakeDirectory(path.c_str());
       std::ofstream fout(sourcePath.c_str());
       if(fout)
         {
@@ -358,6 +361,14 @@ cmVisualStudio10TargetGenerator::WriteCustomRule(cmSourceFile* source,
         fout.flush();
         fout.close();
         }
+      else
+        {
+        std::string error = "Could not create file: [";
+        error +=  sourcePath;
+        error += "]  ";
+        cmSystemTools::Error
+          (error.c_str(), cmSystemTools::GetLastSystemError().c_str());
+        }
       }
     }
   cmLocalVisualStudio7Generator* lg = this->LocalGenerator;