Undefined symbols for architecture x86_64:
  "_jpeg_free_large", referenced from:
      _free_pool in opencv2(jmemmgr.o)
  "_jpeg_free_small", referenced from:
      _free_pool in opencv2(jmemmgr.o)
      _self_destruct in opencv2(jmemmgr.o)
  "_jpeg_get_large", referenced from:
      _alloc_large in opencv2(jmemmgr.o)
      _alloc_barray in opencv2(jmemmgr.o)
  "_jpeg_get_small", referenced from:
      _jinit_memory_mgr in opencv2(jmemmgr.o)
      _alloc_small in opencv2(jmemmgr.o)
  "_jpeg_mem_available", referenced from:
      _realize_virt_arrays in opencv2(jmemmgr.o)
  "_jpeg_mem_init", referenced from:
      _jinit_memory_mgr in opencv2(jmemmgr.o)
  "_jpeg_mem_term", referenced from:
      _jinit_memory_mgr in opencv2(jmemmgr.o)
      _self_destruct in opencv2(jmemmgr.o)
  "_jpeg_open_backing_store", referenced from:
      _realize_virt_arrays in opencv2(jmemmgr.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)