'What are ALL_BUILD and ZERO_CHECK and do I need them?

I've created a simple CMakeLists.txt:

cmake_minimum_required(VERSION 2.8)
project (HelloWorld)
add_executable (HelloWorld main.cpp)

When I generate a VS2012 or VS2010 project from CMake, however, I get these 2 additional entries - ALL_BUILD and ZERO_CHECK. I don't understand their purpose, do I need them?

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Solution 1:[1]

Add the following line to you CMakeLists.txt to suppress generation of ZERO_CHECK:

set(CMAKE_SUPPRESS_REGENERATION true)

Sources

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Source: Stack Overflow

Solution Source
Solution 1 sashoalm