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Autogen: Doc: Add Visual Studio PRE_BUILD note to cmake-qt.rst

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Sebastian Holtermann
2017-09-06 16:10:47 +02:00
parent 2be0acb71e
commit 6739a12571
1 changed files with 18 additions and 0 deletions
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18
Help/manual/cmake-qt.7.rst
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@@ -214,6 +214,24 @@ overrides options from the :prop_tgt:`AUTORCC_OPTIONS` target property.
Source files can be excluded from :prop_tgt:`AUTORCC` processing by
enabling :prop_sf:`SKIP_AUTORCC` or the broader :prop_sf:`SKIP_AUTOGEN`.
Visual Studio Generators
========================
When using the :manual:`Visual Studio generators <cmake-generators(7)>`
CMake tries to use a ``PRE_BUILD``
:command:`custom command <add_custom_command>` instead
of a :command:`custom target <add_custom_target>` for autogen.
``PRE_BUILD`` can't be used when the autogen target depends on files.
This happens when
- :prop_tgt:`AUTOMOC` or :prop_tgt:`AUTOUIC` is enabled and the origin target
depends on :prop_sf:`GENERATED` files which aren't excluded from autogen by
:prop_sf:`SKIP_AUTOMOC`, :prop_sf:`SKIP_AUTOUIC`, :prop_sf:`SKIP_AUTOGEN`
or :policy:`CMP0071`
- :prop_tgt:`AUTORCC` is enabled and a ``.qrc`` file is listed in
the origin target sources
- :prop_tgt:`AUTOGEN_TARGET_DEPENDS` lists a source file
qtmain.lib on Windows
=====================