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This variable in current CMake versions doesn't seem to be needed in any case. Either if the UsewxWidgets is created in the project's own CMAKE_MODULE_PATH location, or if FindwxWidgets is "forked" into project own modules, include(UsewxWidgets) always includes the wanted file.
103 lines
3.2 KiB
CMake
103 lines
3.2 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file LICENSE.rst or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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UsewxWidgets
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------------
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This module serves as a convenience wrapper for using the wxWidgets
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library (formerly known as wxWindows) and propagates its usage requirements,
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such as library directories, include directories, and compiler flags, into
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the current directory scope for use by targets.
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Load this module in a CMake project with:
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.. code-block:: cmake
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include(UsewxWidgets)
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This module calls :command:`include_directories` and
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:command:`link_directories`, sets compile definitions for the current
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directory and appends some compile flags to use wxWidgets library after
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calling the :module:`find_package(wxWidgets) <FindwxWidgets>`.
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Examples
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^^^^^^^^
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Include this module in a project after finding wxWidgets to configure its
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usage requirements:
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.. code-block:: cmake
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:caption: ``CMakeLists.txt``
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# Note that for MinGW users the order of libraries is important.
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find_package(wxWidgets COMPONENTS net gl core base)
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add_library(example example.cxx)
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if(wxWidgets_FOUND)
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include(UsewxWidgets)
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# Link wxWidgets libraries for each dependent executable/library target.
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target_link_libraries(example PRIVATE ${wxWidgets_LIBRARIES})
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endif()
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As of CMake 3.27, a better approach is to link only the
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:module:`wxWidgets::wxWidgets <FindwxWidgets>` imported target to specific
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targets that require it, rather than including this module. Imported
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targets provide better control of the package usage properties, such as
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include directories and compile flags, by applying them only to the targets
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they are linked to, avoiding unnecessary propagation to all targets in the
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current directory.
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.. code-block:: cmake
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:caption: ``CMakeLists.txt``
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find_package(wxWidgets COMPONENTS net gl core base)
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add_library(example example.cxx)
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# Link the imported target for each dependent executable/library target.
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target_link_libraries(example PRIVATE wxWidgets::wxWidgets)
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See Also
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^^^^^^^^
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* The :module:`FindwxWidgets` module to find wxWidgets.
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#]=======================================================================]
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# Author: Jan Woetzel <jw -at- mip.informatik.uni-kiel.de>
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if (wxWidgets_FOUND)
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if (wxWidgets_INCLUDE_DIRS)
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if(wxWidgets_INCLUDE_DIRS_NO_SYSTEM)
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include_directories(${wxWidgets_INCLUDE_DIRS})
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else()
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include_directories(SYSTEM ${wxWidgets_INCLUDE_DIRS})
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endif()
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endif()
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if (wxWidgets_LIBRARY_DIRS)
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link_directories(${wxWidgets_LIBRARY_DIRS})
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endif()
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if (wxWidgets_DEFINITIONS)
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set_property(DIRECTORY APPEND
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PROPERTY COMPILE_DEFINITIONS ${wxWidgets_DEFINITIONS})
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endif()
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if (wxWidgets_DEFINITIONS_DEBUG)
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set_property(DIRECTORY APPEND
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PROPERTY COMPILE_DEFINITIONS_DEBUG ${wxWidgets_DEFINITIONS_DEBUG})
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endif()
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if (wxWidgets_CXX_FLAGS)
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# Flags are expected to be a string here, not a list.
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string(REPLACE ";" " " wxWidgets_CXX_FLAGS_str "${wxWidgets_CXX_FLAGS}")
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string(APPEND CMAKE_CXX_FLAGS " ${wxWidgets_CXX_FLAGS_str}")
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unset(wxWidgets_CXX_FLAGS_str)
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endif()
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else ()
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message("wxWidgets requested but not found.")
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endif()
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