From c24c2cca18c9bdf03de7e165259e3b87251ef1fe Mon Sep 17 00:00:00 2001
From: Amitha Perera <perera@cs.rpi.edu>
Date: Wed, 29 May 2002 15:00:37 -0400
Subject: [PATCH] BUG: never make a target depend on itself. This was causing
 unnecessary library duplication, resulting in link errors on some platforms.

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

diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 121f308cf..04c9a4cc0 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -104,6 +104,12 @@ void cmTarget::AddLinkLibrary(cmMakefile& mf,
                               const char *target, const char* lib, 
                               LinkLibraryType llt)
 {
+  // Never add a self dependency, even if the user asks for it.
+  if(strcmp( target, lib ) == 0)
+    {
+    return;
+    }
+
   m_LinkLibraries.push_back( std::pair<std::string, cmTarget::LinkLibraryType>(lib,llt) );
 
   if(llt != cmTarget::GENERAL)