CMake Overview

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CMake allows building wxWidgets on various platforms with your preferred build system.

Most linux distributions contain CMake as a package on Windows and OS X you can download an installer at the CMake Page.

Using the CMake GUI

Start the CMake GUI
Specify the wxWidgets root as your source folder
Specify a path where the build files should be created. It's recommended to use a path outside the wxWidgets root folder.
Press the Configure button and you will be asked which IDE or build system you wish to use
Optionally: Customize any of the options
Press the Generate button
Open the wxWidgets project with your preferred IDE

Using the CMake Command Line

Create a folder where the build/project files should be created
Change into the created folder
Run cmake -G "Unix Makefiles" path_to_wxWidgets_root
After that you can run cmake --build . to start the build process or directly use your choosen build system.

Run cmake --help to see a list of available generators on your platform. These can than be specified using the -G command line option. On Windows it is recommended to use Visual Studio and on OS X Xcode is recommended. Various build options can be specified using -D see available options.

Command Line Examples

Building with tests using Ninja:

  cmake -G "Ninja" ~/Downloads/wxWidgets_3.1 -DwxBUILD_TESTS=ALL
  cmake --build .

Building the minimal sample:

    cmake ~/Downloads/wxWidgets_3.1 -DwxBUILD_SAMPLES=SOME
    cmake --build . --target minimal

Installing static libraries to some path:

    cmake ~/Downloads/wxWidgets_3.1 \
      -DCMAKE_INSTALL_PREFIX=~/wx_install \
      -DwxBUILD_SHARED=OFF
    cmake --build . --target install

Build options

The following list of build options can either be configured in the CMake UI or specified via the -D command line option when running the cmake command.

Option Name	Type	Default	Description
wxBUILD_SHARED	BOOL	ON	Build shared libraries
wxBUILD_TESTS	STRING	OFF	CONSOLE_ONLY, ALL or OFF
wxBUILD_SAMPLES	STRING	OFF	SOME, ALL or OFF
wxBUILD_DEMOS	BOOL	OFF	Build demo applications
wxUSE_GUI	BOOL	ON	Build the UI libraries
wxBUILD_COMPATIBILITY	STRING	3.0	2.8, 3.0 or 3.1 API compatibility
wxBUILD_PRECOMP	BOOL	ON	Use precompiled headers
wxBUILD_MONOLITHIC	BOOL	OFF	Build a single library

A complete list of options and advanced options can be found when using the CMake GUI.

Recommendations

While CMake in wxWidgets aims to support most generators available in CMake the following generators are recommended:

Windows: Visual Studio (any supported version)
macOS: Xcode
Linux: Ninja or Makefiles

CMake 3.10 or newer is recommended. The minimum version required is 2.8.12.

Using CMake with your applications

If you are using CMake with your own application there are various ways to use wxWidgets:

Using an installed, binary or compiled version of wxWidgets using find_package()
wxWidgets as a sub directory.
CMake's ExternalProject module.

Using find_package

You can use find_package(wxWidgets) to use a compiled version of wxWidgets. Have a look at the CMake Documentation for detailed instructions.

Your CMakeLists.txt would look like this:

...

find_package(wxWidgets REQUIRED COMPONENTS net core base)
include(${wxWidgets_USE_FILE})
add_executable(myapp myapp.cpp)
target_link_libraries(myapp ${wxWidgets_LIBRARIES})

Using a sub directory

You can use wxWidgets as a subdirectory in your application's build tree e.g. as a git submodule. This way the wxWidgets libraries will be part of your applications build process.