Files
CMake/Tests
Brad King 624ec3692f GNUInstallDirs: Revert "Apply Debian multiarch LIBDIR to more prefixes"
Revert commit dd9584b352 (GNUInstallDirs: Apply Debian multiarch LIBDIR
to more prefixes, 2021-11-19, v3.23.0-rc1~323^2).  There are separate
problems with activating multiarch `LIBDIR` for each prefix it added:

* Prefix `/` is often used to stage an installation with `DESTDIR`
  for inclusion in a tarball package or similar.

* Prefix `/usr/local` is the default `CMAKE_INSTALL_PREFIX`, causing
  the multiarch `LIBDIR` to be cached after the first configuration,
  even if the prefix changes later.

Revert the change for now, except for the documentation update.
Further discussion will be needed to select a way to enable
multiarch `LIBDIR` for `/` and `/usr/local`.

Fixes: #23365
Issue: #19698
2022-03-30 11:51:01 -04:00
..

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  Superseded by ``Tests/RunCMake/``.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.