Setting the Search Path for Plug In (Bundle / DyLib)

Question

I\'m creating a Photoshop Plug In on OS X (Basically a Bundle / DyLib).
I\'m using Intel Compiler and uses OpenMP by linking against OpenMP (libiomp5).

Answer 1

Your solution is correct for modern libraries that are aware of @rpath. OpenMP library supports @rpath starting compiler version 16.0 update 2. In your case your RPATH settings are ignored by system

Can you try to link with the with openmp library from photoshop? as I understand they did a workaround for this and updated install_name from libiomp5.dylib to "@executable_path/../Frameworks/libiomp5.dylib". so if you link to that library the openmp name in "otool -l" output will be changed to @executable_path/../Frameworks/libiomp5.dylib

some hints

1. If photoshop updates install name via install_name_tool

    $ otool -l ./a.out | grep omp
    name libiomp5.dylib (offset 24)
    # libiomp5.dylib was copied to the location with test 
    $ install_name_tool -id "@executable_path/../Frameworks/libiomp5.dylib" libiomp5.dylib
    $ LIBRARY_PATH=.:$LIBRARY_PATH icc -openmp test1.cpp 
    $ otool -l ./a.out | grep omp
    name @executable_path/../Frameworks/libiomp5.dylib (offset 24)
   

2. RPATH usage

   install_name_tool -id "@executable_path/../Frameworks/libiomp5.dylib" libiomp5.dylib
   $ LIBRARY_PATH=.:$LIBRARY_PATH icc -openmp test1.cpp -Wl,-rpath,.
   $ ./a.out
   dyld: Library not loaded: @executable_path/../Frameworks/libiomp5.dylib
     Referenced from: /nfs/inn/home/vpolin/mac/./a.out
     Reason: image not found
   Trace/BPT trap: 5
   $ install_name_tool -id "@rpath/libiomp5.dylib" libiomp5.dylib
   $ LIBRARY_PATH=.:$LIBRARY_PATH icc -openmp test1.cpp -Wl,-rpath,.
   $ otool -l ./a.out | grep omp
            name @rpath/libiomp5.dylib (offset 24)
   $ ./a.out
   4 8 8 8 8
   

--Vladimir