message: use CMAKE_INSTALL_LIBDIR for rpath for stability of packaging
diff: @@ -20,9 +20,9 @@ if (OSPRAY_ZIP_MODE)
  set(CMAKE_SKIP_INSTALL_RPATH OFF)
  if (APPLE)
  set(CMAKE_MACOSX_RPATH ON)
  - set(CMAKE_INSTALL_RPATH "@executable_path/" "@executable_path/../lib")
  + set(CMAKE_INSTALL_RPATH "@executable_path/" "@executable_path/../${CMAKE_INSTALL_LIBDIR}")
  else()
  - set(CMAKE_INSTALL_RPATH "\$ORIGIN:\$ORIGIN/../lib")
  + set(CMAKE_INSTALL_RPATH "\$ORIGIN:\$ORIGIN/../${CMAKE_INSTALL_LIBDIR}")
  # on per target basis:
  #set_TARGET_PROPERTIES(apps INSTALL_RPATH "$ORIGIN:$ORIGIN/../lib")
  #set_TARGET_PROPERTIES(libs INSTALL_RPATH "$ORIGIN")
  