export DYLD_LIBRARY_PATH causes libncurses.5.4.dylib not loaded error

Question

On my OS X 10.7.4 Mac I do:

export DYLD_LIBRARY_PATH=/usr/local/lib:$DYLD_LIBRARY_PATH

But afterwards I get this sort of errors:

dyld: Library not loaded: /usr/lib/libncurses.5.4.dylib
  Referenced from: /bin/ls
  Reason: Incompatible library version: ls requires version 5.4.0 or later, but libncurses.5.4.dylib provides version 5.0.0
Trace/BPT trap: 5

To alleviate this problem, I've built the libncurses.5.4.dylib from scratch and installed it into the /usr/local/ncurses-5.9 and did:

sudo mv /usr/lib/libncurses.5.4.dylib /usr/lib/libncurses.5.4.dylib_BACKUP
sudo ln -s =/usr/local/ncurses-5.9/lib/libncursesw.5.4.dylib /usr/lib/libncurses.5.4.dylib

This newly built libncurses works fine but as soon as I do

export DYLD_LIBRARY_PATH=/usr/local/lib:$DYLD_LIBRARY_PATH

it returns the same dyld: Library not loaded: /usr/lib/libncurses.5.4.dylib

As a comparison: When I do the same export DYLD_LIBRARY_PATH=/usr/local/lib:$DYLD_LIBRARY_PATH on my OS X 10.5.6 Mac, it gives no error whatsoever. So I think it should work my OS X 10.7.4 Mac, too.

What should I do to make it work? Thank you.

Answer 1

Ops! When I checked the /usr/local/lib directory, I've found that there were libncurses.dylib files there and because the exported DYLD_LIBRARY_PATH was loading them and they were obviously not binary compatible with the system, I was getting the error.

After I deleted those obselete libncurses.dylib files under /usr/local/lib the error is gone. Problem solved.