message: Haiku got no -lrt and -ld
diff: @@ -544,7 +544,7 @@ if(UNIX)
  CHECK_INCLUDE_FILE(pthread.h HAVE_PTHREAD)
  if(ANDROID)
  set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} dl m log)
  - elseif(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD|NetBSD|DragonFly|OpenBSD")
  + elseif(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD|NetBSD|DragonFly|OpenBSD|Haiku")
  set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} m pthread)
  elseif(EMSCRIPTEN)
  # no need to link to system libs with emscripten
  