#
#scons - A build-tool which is based on python
#
#Will install scons under the Python installed under the OSD python2 prefix.
#Following installation, scons can be invoked as
#$<SHELL_PATH:${CMAKE_INSTALL_PREFIX}/python2/Scripts/scons>
#
#NOTE NOTE NOTE
#
#Scons will not work with Python 3, so we take care NOT to use the Python that
#is built as part of OSD (it is Python 3). Instead we rely on Python 2 from
#$<SHELL_PATH:${CMAKE_INSTALL_PREFIX}/python2/bin/python>
#

if (WIN32)
ExternalProject_Add (
  scons
  PREFIX ${CMAKE_INSTALL_PREFIX}/python2
  BUILD_IN_SOURCE 1
  URL http://prdownloads.sourceforge.net/scons/scons-2.4.1.zip
  URL_MD5 a0c83dd776a01f8be570777807d96d29
  UPDATE_COMMAND ""
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
  INSTALL_COMMAND <INSTALL_DIR>/bin/python ./setup.py install
  DEPENDS python2
)
endif (WIN32)

#Install from the package manager
#sudo apt-get install scons
#Invoke as /usr/bin/scons
if (UNIX)
ExternalProject_Add (
  scons
  PREFIX ${CMAKE_INSTALL_PREFIX}
  BUILD_IN_SOURCE 1
  DOWNLOAD_COMMAND ""
  UPDATE_COMMAND ""
  CONFIGURE_COMMAND ""
  BUILD_COMMAND /usr/bin/scons --version
  INSTALL_COMMAND ""
)
endif (UNIX)