sdk/cmake/compilerflags.cmake

   1
   2 # add_target_property
   3 #  Adds one or more values to the specified property of the specified target.
   4 #  Note that there are properties which require (semicolon-separated) lists,
   5 #  while others require space-separated strings. The function has a list of
   6 #  properties of the former variety and handles the values accordingly
   7 function(add_target_property _module _propname)
   8     list(APPEND _list_properties COMPILE_DEFINITIONS INCLUDE_DIRECTORIES LINK_DEPENDS)
   9     set(_newvalue "")
  10     get_target_property(_oldvalue ${_module} ${_propname})
  11     if(_oldvalue)
  12         set(_newvalue ${_oldvalue})
  13     endif()
  14     list(FIND _list_properties ${_propname} _list_index)
  15     if(NOT _list_index EQUAL -1)
  16         # list property
  17         list(APPEND _newvalue ${ARGN})
  18     else()
  19         # string property
  20         foreach(_flag ${ARGN})
  21             set(_newvalue "${_newvalue} ${_flag}")
  22         endforeach()
  23     endif()
  24     set_property(TARGET ${_module} PROPERTY ${_propname} ${_newvalue})
  25 endfunction()
  26
  27 # remove_target_compile_options
  28 #  Remove one option from the target COMPILE_OPTIONS property,
  29 #  previously added through add_compile_options
  30 function(remove_target_compile_option _module _option)
  31     get_target_property(_options ${_module} COMPILE_OPTIONS)
  32     list(REMOVE_ITEM _options ${_option})
  33     set_target_properties(${_module} PROPERTIES COMPILE_OPTIONS "${_options}")
  34 endfunction()
  35
  36 # Wrapper functions for the important properties, using add_target_property
  37 # where appropriate.
  38 # Note that the functions for string properties take a single string
  39 # argument while those for list properties can take a variable number of
  40 # arguments, all of which will be added to the list
  41 #
  42 # Examples:
  43 #  add_target_link_flags(mymodule "-s --fatal-warnings")
  44
  45 function(add_target_link_flags _module _flags)
  46     if(${ARGC} GREATER 2)
  47         message(FATAL_ERROR "Excess arguments to add_target_link_flags! Module ${_module}, args ${ARGN}")
  48     endif()
  49     add_target_property(${_module} LINK_FLAGS ${_flags})
  50 endfunction()