if(NOT MYX_QPING_IS_EXTERNAL_PROJECT)
  set(MYX_QPING_PREFIX "" CACHE PATH "The path to the prefix of an myx-qping installation")
  set(MYX_QPING_INCLUDE_DIR "" CACHE PATH "The path to the headers of an myx-qping installation")
  set(MYX_QPING_LIBRARY_DIR "" CACHE PATH "The path to the library of an myx-qping installation")

  set(_search_paths "")
  if(MYX_QPING_INCLUDE_DIR AND EXISTS ${MYX_QPING_INCLUDE_DIR})
    list(APPEND _search_paths ${MYX_QPING_INCLUDE_DIR})
  endif()
  if(MYX_QPING_PREFIX AND EXISTS ${MYX_QPING_PREFIX})
    list(APPEND _search_paths "${MYX_QPING_PREFIX}/include")
  endif()
  find_path(
    MYX_QPING_INCLUDE_DIRS
    NAMES myx/qping/ping.hpp
    PATHS ${_search_paths})

  set(_search_paths "")
  if(MYX_QPING_LIBRARY_DIR AND EXISTS ${MYX_QPING_LIBRARY_DIR})
    list(APPEND _search_paths ${MYX_QPING_LIBRARY_DIR})
  endif()
  if(MYX_QPING_PREFIX AND EXISTS ${MYX_QPING_PREFIX})
    list(APPEND _search_paths "${MYX_QPING_PREFIX}/lib")
  endif()
  find_library(
    MYX_QPING_LIBRARIES
    NAMES preprocmath
    PATHS ${_search_paths})
  unset(_search_paths)

  if(MYX_QPING_INCLUDE_DIRS AND MYX_QPING_LIBRARIES)
    set(MYX_QPING_FOUND TRUE)
  endif()

  if(MYX_QPING_FOUND)
    if(NOT MYX_QPING_FIND_QUIETLY)
      message(STATUS "Found myx-qping")
    endif()
    set(HAVE_MYX_QPING 1)
  elseif(MYX_QPING_FOUND)
    if(MYX_QPING_FIND_REQUIRED)
      message(FATAL_ERROR "Could not find myx-qping")
    endif()
  endif()
endif()