From 6a906befaeebf8542f20bf0b29999b0d3ff38856 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 14 May 2008 11:55:41 -0400
Subject: [PATCH] ENH: In KWSys set the IMPLICIT_DEPENDS_INCLUDE_TRANSFORM
 property.

  - Tells CMake about the KWSYS_HEADER macro.
  - Enables implicit dependencies of private source files.
  - When a CMake new enough to support the property is required
    the "#if 0" hack can be removed from the source files.
---
 Source/kwsys/CMakeLists.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Source/kwsys/CMakeLists.txt b/Source/kwsys/CMakeLists.txt
index 07a3d2d71..3cebc5531 100644
--- a/Source/kwsys/CMakeLists.txt
+++ b/Source/kwsys/CMakeLists.txt
@@ -122,6 +122,14 @@ ENDIF(KWSYS_STANDALONE)
 # The project name is that of the specified namespace.
 PROJECT(${KWSYS_NAMESPACE})
 
+# Tell CMake how to follow dependencies of sources in this directory.
+IF(COMMAND SET_PROPERTY)
+  SET_PROPERTY(DIRECTORY
+    PROPERTY IMPLICIT_DEPENDS_INCLUDE_TRANSFORM
+    "KWSYS_HEADER(%)=<${KWSYS_NAMESPACE}/%>"
+    )
+ENDIF(COMMAND SET_PROPERTY)
+
 # Select library components.
 IF(KWSYS_STANDALONE OR CMake_SOURCE_DIR)
   SET(KWSYS_ENABLE_C 1)