https://github.com/Kitware/CMake
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Tip revision: 9bbfbd54ba04e07b0bf2eb8bb1056bca53d639c5 authored by Brad King on 13 December 2018, 11:44:30 UTC
CMake 3.13.2
Tip revision: 9bbfbd5
TOUCH.cmake
set(file "${CMAKE_CURRENT_BINARY_DIR}/file-to-touch")

file(REMOVE "${file}")
file(TOUCH_NOCREATE "${file}")
if(EXISTS "${file}")
  message(FATAL_ERROR "error: TOUCH_NOCREATE created a file!")
endif()

file(TOUCH "${file}")
if(NOT EXISTS "${file}")
  message(FATAL_ERROR "error: TOUCH did not create a file!")
endif()
file(REMOVE "${file}")

file(TOUCH)
file(TOUCH_NOCREATE)
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