cmake/modules/buildtools/FindIncludeWhatYouUse.cmake

   1 #.rst:
   2 # FindIncludeWhatYouUse
   3 # ---------------------
   4 # Finds include-what-you-use and sets it up to run along with the compiler for C and CXX.
   5
   6 find_program(IWYU_EXECUTABLE NAMES include-what-you-use iwyu)
   7
   8 if(IWYU_EXECUTABLE)
   9   execute_process(COMMAND "${IWYU_EXECUTABLE}" --version
  10                   OUTPUT_VARIABLE IWYU_VERSION
  11                   OUTPUT_STRIP_TRAILING_WHITESPACE)
  12   string(REGEX MATCH "[^\n]*include-what-you-use [^\n]*" IWYU_VERSION "${IWYU_VERSION}")
  13   string(REGEX REPLACE "include-what-you-use ([^ \n\r\t]+).*" "\\1" IWYU_VERSION "${IWYU_VERSION}")
  14 endif()
  15
  16 include(FindPackageHandleStandardArgs)
  17 find_package_handle_standard_args(IncludeWhatYouUse REQUIRED_VARS IWYU_EXECUTABLE
  18                                   VERSION_VAR IWYU_VERSION)
  19
  20 if(INCLUDEWHATYOUUSE_FOUND)
  21   # Supports Unix Makefiles and Ninja
  22   set(CMAKE_C_INCLUDE_WHAT_YOU_USE "${IWYU_EXECUTABLE}" PARENT_SCOPE)
  23   set(CMAKE_CXX_INCLUDE_WHAT_YOU_USE "${IWYU_EXECUTABLE}" PARENT_SCOPE)
  24 endif()
  25
  26 mark_as_advanced(IWYU_EXECUTABLE)