[CMake] MacOS X RPATH

[Konstantinos Theofilis]

Hi,

Using the following RPATH commands, my project is working fine on Linux and OS X. 

 set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
  set(CMAKE_INSTALL_NAME_DIR "${CMAKE_INSTALL_PREFIX}/lib")
  set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

Now, I have the need to link to a library that is outside the system paths and has to reside, e.g. at /home/user/foo. 
Keeping the above three lines , everything on Linux still works fine. The path to /home/user/foo/libfoo is added to the executable, as it should, because of the
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
line.

But in OS X , while everything links fine and compiles fine, the binaries cannot find the new library, and a quick look with otool reveals that the path was not set for libfoo and I have to manually copy it to the executable's location in order to work.

Any ideas?

Thanks,
Kostas