This variable is used to initialize the NETRC option for file(DOWNLOAD) and file(UPLOAD) commands and the module ExternalProject. See those commands for additional information.
The local option takes precedence over this variable.
© 2000–2018 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.12/variable/CMAKE_NETRC.html