cmake/Modules/CompileFeature.cmake

   1 # Helper function for coupling add_feature_info(), option(), and add_definitions()
   2
   3 function(optional_compile_definitions _name)
   4     set(options FEATURE)
   5     set(oneValueArgs DESCRIPTION DEFAULT)
   6     set(multiValueArgs ENABLED DISABLED)
   7     cmake_parse_arguments(OCD "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
   8     option(${_name} "${OCD_DESCRIPTION}" ${OCD_DEFAULT})
   9     if (${${_name}})
  10         set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY COMPILE_DEFINITIONS ${OCD_ENABLED})
  11     else()
  12         set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY COMPILE_DEFINITIONS ${OCD_DISABLED})
  13     endif()
  14     if(${OCD_FEATURE})
  15         add_feature_info(${_name} ${_name} "${OCD_DESCRIPTION}")
  16     endif()
  17 endfunction()
  18
  19 macro(feature_option _name _description _default)
  20     option(${_name} "${_description}" ${_default})
  21     add_feature_info(${_name} ${_name} "${_description}")
  22 endmacro()