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Makefiles: Add support of DEPFILE for add_custom_command

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Issue: #20286
Fixes: #21415
This commit is contained in:
Marc Chevrier
2020-12-04 18:35:04 +01:00
parent a526f71266
commit cfd8a5ac1f
20 changed files with 310 additions and 80 deletions
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Help/command/add_custom_command.rst
+18 -3
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@@ -201,6 +201,10 @@ The options are:
Note that the ``IMPLICIT_DEPENDS`` option is currently supported
only for Makefile generators and will be ignored by other generators.
.. note::
This option cannot be specified at the same time as ``DEPFILE`` option.
``JOB_POOL``
.. versionadded:: 3.15
@@ -263,15 +267,26 @@ The options are:
``DEPFILE``
.. versionadded:: 3.7
Specify a ``.d`` depfile for the :generator:`Ninja` generator.
Specify a ``.d`` depfile for the :generator:`Ninja` generator and
:ref:`Makefile Generators`.
A ``.d`` file holds dependencies usually emitted by the custom
command itself.
Using ``DEPFILE`` with other generators than Ninja is an error.
Using ``DEPFILE`` with other generators than :generator:`Ninja` or
:ref:`Makefile Generators` is an error.
.. versionadded:: 3.20
Added the support of :ref:`Makefile Generators`.
If the ``DEPFILE`` argument is relative, it should be relative to
:variable:`CMAKE_CURRENT_BINARY_DIR`, and any relative paths inside the
``DEPFILE`` should also be relative to :variable:`CMAKE_CURRENT_BINARY_DIR`
(see policy :policy:`CMP0116`.)
(see policy :policy:`CMP0116`. This policy is always ``NEW`` for
:ref:`Makefile Generators`).
.. note::
For :ref:`Makefile Generators`, this option cannot be specified at the
same time as ``IMPLICIT_DEPENDS`` option.
Examples: Generating Files
^^^^^^^^^^^^^^^^^^^^^^^^^^