CMAKE_SUBLIME_TEXT_2_EXCLUDE_BUILD_TREE
If this variable evaluates to ON at the end of the top-level CMakeLists.txt file, the Sublime Text 2 extra generator excludes the build tree from the .sublime-project if it is inside the source tree.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.15/variable/CMAKE_SUBLIME_TEXT_2_EXCLUDE_BUILD_TREE.html