From 7a9f75c1a8ab159398ee852774904e7b7b0457c2 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 21 Oct 2009 13:11:16 -0400
Subject: [PATCH] Add IS_SYMLINK test to if command

---
 Source/cmIfCommand.cxx | 7 +++++++
 Source/cmIfCommand.h   | 3 +++
 2 files changed, 10 insertions(+)

diff --git a/Source/cmIfCommand.cxx b/Source/cmIfCommand.cxx
index b51fabbd8..8cba1115e 100644
--- a/Source/cmIfCommand.cxx
+++ b/Source/cmIfCommand.cxx
@@ -508,6 +508,13 @@ namespace
           cmSystemTools::FileIsDirectory((argP1)->c_str()),
           reducible, arg, newArgs, argP1, argP2);
         }
+      // does a symlink with this name exist
+      if (*arg == "IS_SYMLINK" && argP1  != newArgs.end())
+        {
+        HandlePredicate(
+          cmSystemTools::FileIsSymlink((argP1)->c_str()),
+          reducible, arg, newArgs, argP1, argP2);
+        }
       // is the given path an absolute path ?
       if (*arg == "IS_ABSOLUTE" && argP1  != newArgs.end())
         {
diff --git a/Source/cmIfCommand.h b/Source/cmIfCommand.h
index 90d144793..f48022028 100644
--- a/Source/cmIfCommand.h
+++ b/Source/cmIfCommand.h
@@ -150,6 +150,9 @@ public:
       "  if(IS_DIRECTORY directory-name)\n"
       "True if the given name is a directory.  "
       "Behavior is well-defined only for full paths.\n"
+      "  if(IS_SYMLINK file-name)\n"
+      "True if the given name is a symbolic link.  "
+      "Behavior is well-defined only for full paths.\n"
       "  if(IS_ABSOLUTE path)\n"
       "True if the given path is an absolute path.\n"
       "  if(variable MATCHES regex)\n"