Removed support for cutil library and header file.

Cutil was never intented to be used outside of the SDK.  The removal of this
code is in support of this.  The CUDA_SDK_ROOT_DIR will continue to be
supported, in case users wish to use this to find files in the SDK.  There are
also two examples of how to use CUDA_SDK_ROOT_DIR to find header files and
libraries if users so wish.

Modules/FindCUDA.cmake

@@ -199,11 +199,18 @@
 #  CUDA_VERSION_STRING   -- CUDA_VERSION_MAJOR.CUDA_VERSION_MINOR
 #
 #  CUDA_TOOLKIT_ROOT_DIR -- Path to the CUDA Toolkit (defined if not set).
+#  CUDA_SDK_ROOT_DIR     -- Path to the CUDA SDK.  Use this to find files in the
+#                           SDK.  This script will not directly support finding
+#                           specific libraries or headers, as that isn't
+#                           supported by NVIDIA.  If you want to change
+#                           libraries when the path changes see the
+#                           FindCUDA.cmake script for an example of how to clear
+#                           these variables.  There are also examples of how to
+#                           use the CUDA_SDK_ROOT_DIR to locate headers or
+#                           libraries, if you so choose (at your own risk).
 #  CUDA_INCLUDE_DIRS     -- Include directory for cuda headers.  Added automatically
 #                           for CUDA_ADD_EXECUTABLE and CUDA_ADD_LIBRARY.
 #  CUDA_LIBRARIES        -- Cuda RT library.
-#  CUDA_CUT_INCLUDE_DIR  -- Include directory for cuda SDK headers (cutil.h).
-#  CUDA_CUT_LIBRARIES    -- SDK libraries.
 #  CUDA_CUFFT_LIBRARIES  -- Device or emulation library for the Cuda FFT
 #                           implementation (alternative to:
 #                           CUDA_ADD_CUFFT_TO_TARGET macro)
@@ -212,7 +219,7 @@
 #                           CUDA_ADD_CUBLAS_TO_TARGET macro).
 #
 #
-#  James Bigler, NVIDIA Corp
+#  James Bigler, NVIDIA Corp (nvidia.com - jbigler)
 #  Abe Stephens, SCI Institute -- http://www.sci.utah.edu/~abe/FindCuda.html
 #
 #  Copyright (c) 2008-2009
@@ -421,8 +428,11 @@ if(NOT "${CUDA_TOOLKIT_ROOT_DIR}" STREQUAL "${CUDA_TOOLKIT_ROOT_DIR_INTERNAL}")
 endif()
 
 if(NOT "${CUDA_SDK_ROOT_DIR}" STREQUAL "${CUDA_SDK_ROOT_DIR_INTERNAL}")
-  unset(CUDA_CUT_INCLUDE_DIR CACHE)
-  unset(CUDA_CUT_LIBRARY CACHE)
+  # No specific variables to catch.  Use this kind of code before calling
+  # find_package(CUDA) to clean up any variables that may depend on this path.
+
+  #   unset(MY_SPECIAL_CUDA_SDK_INCLUDE_DIR CACHE)
+  #   unset(MY_SPECIAL_CUDA_SDK_LIBRARY CACHE)
 endif()
 
 # Search for the cuda distribution.
@@ -593,43 +603,46 @@ set(CUDA_SDK_SEARCH_PATH
   "$ENV{HOME}/NVIDIA_CUDA_SDK_MACOSX"
   "/Developer/CUDA"
   )
-# CUDA_CUT_INCLUDE_DIR
-find_path(CUDA_CUT_INCLUDE_DIR
-  cutil.h
-  PATHS ${CUDA_SDK_SEARCH_PATH}
-  PATH_SUFFIXES "common/inc"
-  DOC "Location of cutil.h"
-  NO_DEFAULT_PATH
-  )
-# Now search system paths
-find_path(CUDA_CUT_INCLUDE_DIR cutil.h DOC "Location of cutil.h")
-
-mark_as_advanced(CUDA_CUT_INCLUDE_DIR)
-
 
-# CUDA_CUT_LIBRARIES
-
-# cutil library is called cutil64 for 64 bit builds on windows.  We don't want
-# to get these confused, so we are setting the name based on the word size of
-# the build.
-if(CMAKE_SIZEOF_VOID_P EQUAL 8)
-  set(cuda_cutil_name cutil64)
-else(CMAKE_SIZEOF_VOID_P EQUAL 8)
-  set(cuda_cutil_name cutil32)
-endif(CMAKE_SIZEOF_VOID_P EQUAL 8)
-
-find_library(CUDA_CUT_LIBRARY
-  NAMES cutil ${cuda_cutil_name}
-  PATHS ${CUDA_SDK_SEARCH_PATH}
-  # The new version of the sdk shows up in common/lib, but the old one is in lib
-  PATH_SUFFIXES "common/lib" "lib"
-  DOC "Location of cutil library"
-  NO_DEFAULT_PATH
-  )
-# Now search system paths
-find_library(CUDA_CUT_LIBRARY NAMES cutil ${cuda_cutil_name} DOC "Location of cutil library")
-mark_as_advanced(CUDA_CUT_LIBRARY)
-set(CUDA_CUT_LIBRARIES ${CUDA_CUT_LIBRARY})
+# Example of how to find an include file from the CUDA_SDK_ROOT_DIR
+
+# find_path(CUDA_CUT_INCLUDE_DIR
+#   cutil.h
+#   PATHS ${CUDA_SDK_SEARCH_PATH}
+#   PATH_SUFFIXES "common/inc"
+#   DOC "Location of cutil.h"
+#   NO_DEFAULT_PATH
+#   )
+# # Now search system paths
+# find_path(CUDA_CUT_INCLUDE_DIR cutil.h DOC "Location of cutil.h")
+
+# mark_as_advanced(CUDA_CUT_INCLUDE_DIR)
+
+
+# Example of how to find a library in the CUDA_SDK_ROOT_DIR
+
+# # cutil library is called cutil64 for 64 bit builds on windows.  We don't want
+# # to get these confused, so we are setting the name based on the word size of
+# # the build.
+
+# if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+#   set(cuda_cutil_name cutil64)
+# else(CMAKE_SIZEOF_VOID_P EQUAL 8)
+#   set(cuda_cutil_name cutil32)
+# endif(CMAKE_SIZEOF_VOID_P EQUAL 8)
+
+# find_library(CUDA_CUT_LIBRARY
+#   NAMES cutil ${cuda_cutil_name}
+#   PATHS ${CUDA_SDK_SEARCH_PATH}
+#   # The new version of the sdk shows up in common/lib, but the old one is in lib
+#   PATH_SUFFIXES "common/lib" "lib"
+#   DOC "Location of cutil library"
+#   NO_DEFAULT_PATH
+#   )
+# # Now search system paths
+# find_library(CUDA_CUT_LIBRARY NAMES cutil ${cuda_cutil_name} DOC "Location of cutil library")
+# mark_as_advanced(CUDA_CUT_LIBRARY)
+# set(CUDA_CUT_LIBRARIES ${CUDA_CUT_LIBRARY})