https://github.com/Kitware/CMake
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Tip revision: 1f25aa1a0ac61a0b3d5b0c4e2abc98c49cd159a5 authored by Brad King on 29 January 2024, 20:01:32 UTC
CMake 3.28.2
Tip revision: 1f25aa1
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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