https://github.com/Kitware/CMake
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Tip revision: 1dc252ecf4d0946196133734540ebe8e90f312d3 authored by Brad King on 03 October 2016, 13:53:58 UTC
Merge branch 'fix-doc-3.7-relnotes' into release
Tip revision: 1dc252e
check_mark.cmake
if(EXISTS "${MARK_FILE}")
  message(FATAL_ERROR "Custom command run more than once!")
else()
  file(WRITE "${MARK_FILE}" "check for running custom command twice\n")
endif()
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