If you want to further customize your wxWidgets library by enabling or disabling certain features, all of the configuration options are centralized into a file called setup.h. A separate setup.h file is automatically created from the default setup.h file for each library build and is placed in the lib directory of that build. The exact subdirectory depends on the compiler. For compilers using configure and make, setup.h is in lib/wx/include/<configname>/wx from the build directory. For other compilers, setup.h is in lib/<compiler>_lib/ <configname>/wx.