From 16b0571d93a5f51caf4e55a2502b74e6cab9c78d Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Tue, 18 Dec 2001 09:51:18 -0500
Subject: ENH: Added option to IF command to test if a command exists.  Syntax
 is IF(COMMAND name-of-command).

---
 Source/cmElseCommand.cxx | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Source/cmElseCommand.cxx b/Source/cmElseCommand.cxx
index 12847cf..7daca42 100644
--- a/Source/cmElseCommand.cxx
+++ b/Source/cmElseCommand.cxx
@@ -65,6 +65,14 @@ bool cmElseCommand::InitialPass(std::vector<std::string> const& args)
       }
     }
 
+  if (args.size() == 2 && (args[0] == "COMMAND"))
+    {
+    if(m_Makefile->CommandExists(args[1].c_str()))
+      {
+      f = new cmIfFunctionBlocker();
+      }
+    }
+
   if (args.size() == 2 && (args[0] == "NOT"))
     {
     def = m_Makefile->GetDefinition(args[1].c_str());
-- 
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