diff -Naur oiio-Release-1.2.1.orig/src/CMakeLists.txt oiio-Release-1.2.1/src/CMakeLists.txt
--- oiio-Release-1.2.1.orig/src/CMakeLists.txt	2013-08-06 00:10:31.000000000 -0500
+++ oiio-Release-1.2.1/src/CMakeLists.txt	2013-10-01 14:56:40.148707021 -0500
@@ -396,9 +396,9 @@
 set (CPACK_PACKAGE_DESCRIPTION_FILE "${PROJECT_SOURCE_DIR}/doc/Description.txt")
 set (CPACK_PACKAGE_FILE_NAME OpenImageIO-${OIIO_VERSION_MAJOR}.${OIIO_VERSION_MINOR}.${OIIO_VERSION_PATCH}-${platform})
 #SET (CPACK_PACKAGE_INSTALL_DIRECTORY ${PROJECT_SOURCE_DIR}/..)
-exec_program ("cmake -E copy ${PROJECT_SOURCE_DIR}/../LICENSE ${CMAKE_BINARY_DIR}/License.txt")
+exec_program ("${CMAKE_COMMAND} -E copy ${PROJECT_SOURCE_DIR}/../LICENSE ${CMAKE_BINARY_DIR}/License.txt")
 set (CPACK_RESOURCE_FILE_LICENSE "${CMAKE_BINARY_DIR}/License.txt")
-exec_program ("cmake -E copy ${PROJECT_SOURCE_DIR}/../README.rst ${CMAKE_BINARY_DIR}/Readme.rst")
+exec_program ("${CMAKE_COMMAND} -E copy ${PROJECT_SOURCE_DIR}/../README.rst ${CMAKE_BINARY_DIR}/Readme.rst")
 set (CPACK_RESOURCE_FILE_README "${CMAKE_BINARY_DIR}/Readme.rst")
 set (CPACK_RESOURCE_FILE_WELCOME "${PROJECT_SOURCE_DIR}/doc/Welcome.txt")
 #SET (CPACK_STRIP_FILES Do we need this?)