From 73f175146a3f204820a1ae0a81b98355fa48ebcd Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Sun, 2 Mar 2008 16:48:50 -0500
Subject: ENH: During installation do not use builtin chrpath if the rpath will
 not change.

---
 Source/cmInstallTargetGenerator.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Source/cmInstallTargetGenerator.cxx b/Source/cmInstallTargetGenerator.cxx
index 9ecf346..f05c375 100644
--- a/Source/cmInstallTargetGenerator.cxx
+++ b/Source/cmInstallTargetGenerator.cxx
@@ -572,6 +572,12 @@ cmInstallTargetGenerator
   // Get the install RPATH from the link information.
   std::string newRpath = cli->GetChrpathString();
 
+  // Skip the rule if the paths are identical
+  if(oldRpath == newRpath)
+    {
+    return;
+    }
+
   // Write a rule to run chrpath to set the install-tree RPATH
   os << indent << "FILE(CHRPATH FILE \"" << toDestDirPath << "\"\n"
      << indent << "     OLD_RPATH \"" << oldRpath << "\"\n"
-- 
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