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Help: Clarify target_sources PRIVATE/PUBLIC/INTERFACE scopes

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Brad King
2020-07-31 10:31:25 -04:00
parent 261a2585d9
commit 1b0adeea81
1 changed files with 8 additions and 6 deletions
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Help/command/target_sources.rst
+8 -6
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@@ -11,19 +11,21 @@ Add sources to a target.
<INTERFACE|PUBLIC|PRIVATE> [items1...]
[<INTERFACE|PUBLIC|PRIVATE> [items2...] ...])
Specifies sources to use when compiling a given target. Relative
source file paths are interpreted as being relative to the current
Specifies sources to use when building a target and/or its dependents.
Relative source file paths are interpreted as being relative to the current
source directory (i.e. :variable:`CMAKE_CURRENT_SOURCE_DIR`). The
named ``<target>`` must have been created by a command such as
:command:`add_executable` or :command:`add_library` and must not be an
:ref:`ALIAS target <Alias Targets>`.
The ``INTERFACE``, ``PUBLIC`` and ``PRIVATE`` keywords are required to
specify the scope of the following arguments. ``PRIVATE`` and ``PUBLIC``
specify the scope of the items following them. ``PRIVATE`` and ``PUBLIC``
items will populate the :prop_tgt:`SOURCES` property of
``<target>``. ``PUBLIC`` and ``INTERFACE`` items will populate the
:prop_tgt:`INTERFACE_SOURCES` property of ``<target>``.
(:ref:`IMPORTED targets <Imported Targets>` only support ``INTERFACE`` items.)
``<target>``, which are used when building the target itself.
``PUBLIC`` and ``INTERFACE`` items will populate the
:prop_tgt:`INTERFACE_SOURCES` property of ``<target>``, which are used
when building dependents. (:ref:`IMPORTED targets <Imported Targets>`
only support ``INTERFACE`` items because they are not build targets.)
The following arguments specify sources. Repeated calls for the same
``<target>`` append items in the order called.