CTest: Stop telling 'make' to ignore errors with -i

Add policy CMP0061 to maintain compatibility for existing projects.

1 files changed, 24 insertions, 0 deletions

diff --git a/Help/policy/CMP0061.rst b/Help/policy/CMP0061.rst
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+CMP0061
+-------
+
+CTest does not by default tell ``make`` to ignore errors (``-i``).
+
+The :command:`ctest_build` and :command:`build_command` commands no
+longer generate build commands for :ref:`Makefile Generators` with
+the ``-i`` option.  Previously this was done to help build as much
+of tested projects as possible.  However, this behavior is not
+consistent with other generators and also causes the return code
+of the ``make`` tool to be meaningless.
+
+Of course users may still add this option manually by setting
+:variable:`CTEST_BUILD_COMMAND` or the ``MAKECOMMAND`` cache entry.
+See the :ref:`CTest Build Step` ``MakeCommand`` setting documentation
+for their effects.
+
+The ``OLD`` behavior for this policy is to add ``-i`` to ``make``
+calls in CTest.  The ``NEW`` behavior for this policy is to not
+add ``-i``.
+
+This policy was introduced in CMake version 3.3.  Unlike most policies,
+CMake version |release| does *not* warn when this policy is not set and
+simply uses OLD behavior.