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mccormic authored
The UPDATE_COMMAND stage of CMake ExternalProject_Add calls had been removed by setting it to "". This was likely to prevent unneccessary clones. However, the buggy behavior was fixed in CMake >=2.8.8. http://cmake.org/gitweb?p=cmake.git;a=commit;h=987c017f6b1b49ab832c244166e30e07260432da And the UPDATE_COMMAND step is required to keep the ExternalProject in sync if the desired Git tag changes. In this commit, the UPDATE_COMMAND ExternalProject step is restored for CMake >= 2.8.8. git-svn-id: http://svn.slicer.org/Slicer4/trunk@20615 3bd1e089-480b-0410-8dfb-8563597acbee
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