[ncl-install] NCL lib. error

[Tao Zhang]

Hi,

  I am not sure if installing some Macport packages or Anaconda python 
causes the NCL to fail. It works well before.

  My Mac OS is 10.14.6.

   Do you know how to fix it?

    Thanks

   Tao

/Users/tzhang/Disk> ncl
dyld: Library not loaded: @rpath/libgcc_s.1.1.dylib
   Referenced from: /opt/local/lib/libgcc/libgcc_s.1.dylib
   Reason: image not found
Abort