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CMake/Help/variable/CMAKE_TLS_VERIFY.rst
Craig Scott 1851aa49be FetchContent: Pass through networking-related CMAKE_... variables
CMAKE_TLS_VERIFY, CMAKE_TLS_CAINFO, CMAKE_NETRC and
CMAKE_NETRC_FILE are now passed through to the underlying
ExternalProject sub-build. Previously, they were silently ignored.

Fixes: #22144
2021-10-05 23:41:34 +11:00

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CMAKE_TLS_VERIFY
----------------
Specify the default value for the :command:`file(DOWNLOAD)` and
:command:`file(UPLOAD)` commands' ``TLS_VERIFY`` options.
If not set, the default is *off*.
This variable is also used by the :module:`ExternalProject` and
:module:`FetchContent` modules for internal calls to :command:`file(DOWNLOAD)`.
TLS verification can help provide confidence that one is connecting
to the desired server. When downloading known content, one should
also use file hashes to verify it.
.. code-block:: cmake
set(CMAKE_TLS_VERIFY TRUE)