Do not use bundled applications from the source of OpenColorIO.

--- OpenColorIO-1.0.9/docs/CMakeLists.txt.orig	2016-09-15 09:40:03.932004575 +0000
+++ OpenColorIO-1.0.9/docs/CMakeLists.txt	2016-09-15 09:41:04.420845978 +0000
@@ -1,67 +1,3 @@
-
-###############################################################################
-### External Doc Apps ###
-
-# setuptools
-# https://pypi.python.org/pypi/setuptools
-set(SETUPTOOLS_VERSION 1.1.6)
-ExternalProject_Add(setuptools
-    URL ${CMAKE_SOURCE_DIR}/ext/setuptools-${SETUPTOOLS_VERSION}.tar.gz
-    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CMAKE_COMMAND} -E make_directory ${EXTDIST_PYTHONPATH}
-    BUILD_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py build
-    INSTALL_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py install --prefix=${EXTDIST_ROOT}
-)
-
-# docutils
-# https://pypi.python.org/pypi/docutils
-set(DOCUTILS_VERSION 0.11)
-ExternalProject_Add(docutils
-    DEPENDS setuptools
-    URL ${CMAKE_SOURCE_DIR}/ext/docutils-${DOCUTILS_VERSION}.tar.gz
-    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CMAKE_COMMAND} -E make_directory ${EXTDIST_PYTHONPATH}
-    BUILD_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py build
-    INSTALL_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py install --prefix=${EXTDIST_ROOT}
-)
-
-# jinja2
-# https://pypi.python.org/pypi/Jinja2
-set(JINJA2_VERSION 2.7.1)
-ExternalProject_Add(Jinja2
-    DEPENDS setuptools
-    URL ${CMAKE_SOURCE_DIR}/ext/Jinja2-${JINJA2_VERSION}.tar.gz
-    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CMAKE_COMMAND} -E make_directory ${EXTDIST_PYTHONPATH}
-    BUILD_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py build
-    INSTALL_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py install --prefix=${EXTDIST_ROOT}
-)
-
-# Pygments
-# https://pypi.python.org/pypi/Pygments
-set(PYGMENTS_VERSION 1.6)
-ExternalProject_Add(Pygments
-    DEPENDS setuptools
-    URL ${CMAKE_SOURCE_DIR}/ext/Pygments-${PYGMENTS_VERSION}.tar.gz
-    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CMAKE_COMMAND} -E make_directory ${EXTDIST_PYTHONPATH}
-    BUILD_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py build
-    INSTALL_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py install --prefix=${EXTDIST_ROOT}
-)
-
-# sphinx
-# https://pypi.python.org/pypi/Sphinx
-set(SPHINX_VERSION 1.2b3)
-ExternalProject_Add(Sphinx
-    DEPENDS setuptools docutils Jinja2 Pygments
-    URL ${CMAKE_SOURCE_DIR}/ext/Sphinx-${SPHINX_VERSION}.tar.gz
-    PATCH_COMMAND patch -p1 < ${CMAKE_SOURCE_DIR}/ext/Sphinx-${SPHINX_VERSION}.patch
-    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CMAKE_COMMAND} -E make_directory ${EXTDIST_PYTHONPATH}
-    BUILD_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py build
-    INSTALL_COMMAND PYTHONPATH=${PYTHONPATH} ${PYTHON} setup.py install --prefix=${EXTDIST_ROOT} --install-scripts=${EXTDIST_ROOT}/bin
-)
-
 ###############################################################################
 ### Create Doc Targets ###