Since:
* commit e216b9bbd3 (cmake: Allow CMAKE_BUILD_TYPE to be set by
environment variable, 2021-06-29, v3.22.0-rc1~503^2~1)
* commit ef56eefc9b (cmake: Allow CMAKE_CONFIGURATION_TYPES to be set by
environment variable, 2021-06-29, v3.22.0-rc1~503^2)
the environment variables are supposed to provide defaults for settings
the user otherwise can control via cache entries. However, they
accidentally affect `try_compile` projects too, which are supposed to be
programmatically controlled.
Fixes: #22935
CMake Tests Directory
*********************
This directory contains the CMake test suite.
See also the `CMake Source Code Guide`_.
.. _`CMake Source Code Guide`: ../Help/dev/source.rst
Many tests exist as immediate subdirectories, but some tests
are organized as follows.
* ``CMakeLib/``:
Source code, used for tests, that links to the ``CMakeLib`` library
defined over in ``Source/``.
* ``CMakeOnly/``:
Deprecated. Tests that run CMake to generate a project but not build it.
Superseded by ``Tests/RunCMake/``.
* ``Find*/``:
Tests for specific find modules that can only be run on machines with
the corresponding packages installed. They are enabled in
``CMakeLists.txt`` by undocumented options used on CI builds.
* ``Module/``:
Tests for specific CMake modules.
* ``RunCMake/``:
Tests that run CMake and/or other tools while precisely checking
their return code and stdout/stderr content. Useful for testing
error cases and diagnostic output.
Brad King
5b1ed2a646