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Genex: add_custom_command: DEPFILE supports genex

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This facility is very useful for 'Ninja Multi-Config' and required
as well for future support of DEPFILE in 'Xcode' and 'Visual Studio'
generators (#20286).
This commit is contained in:
Marc Chevrier
2021-04-09 19:09:52 +02:00
parent 43ecda68eb
commit 0c47b91fcc
11 changed files with 74 additions and 12 deletions
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7
Help/command/add_custom_command.rst
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@@ -272,7 +272,9 @@ The options are:
.. versionadded:: 3.7
Specify a ``.d`` depfile for the :generator:`Ninja` generator and
:ref:`Makefile Generators`.
:ref:`Makefile Generators`. The depfile may use "generator expressions" with
the syntax ``$<...>``. See the :manual:`generator-expressions(7)
<cmake-generator-expressions(7)>` manual for available expressions.
A ``.d`` file holds dependencies usually emitted by the custom
command itself.
Using ``DEPFILE`` with other generators than :generator:`Ninja` or
@@ -281,6 +283,9 @@ The options are:
.. versionadded:: 3.20
Added the support of :ref:`Makefile Generators`.
.. versionadded:: 3.21
Added the support of :manual:`generator expressions <cmake-generator-expressions(7)>`.
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`