[CMake] cpack bundle on osx

[Yngve Inntjore Levinsen]

Dear fellow cmake users,

I am trying to create a bundle of my project that I build using CMake. I 
have tried using the DragNDrop generator, which works to some extent. I 
do manage to create a .app folder which contains the one binary that is 
the outcome of the project in the Contents/MacOS folder. I do also 
create a .dmg file. However:
- When clicking the .dmg I am first presented with the license (great!) 
before the dmg is mounted and I see an empty folder (??)
- When clicking on the <package>.app nothing happens. However, clicking 
on the binary in Contents/MacOS works as expected.
- I would also like to know how to include the shared libraries (dylib) 
that I need. I currently depend on stuff that is installed with 
MacPorts, and I don't want to require that the user have to install all 
that stuff. Isn't the bundle supposed to be "self-contained"? Ideally I 
would like the bundle to automatically include the libraries that are 
listed with the "otools -L <binary>" command...

Question: Where do I find the DragNDrop documentation/examples? On the 
wiki ( 
http://www.paraview.org/Wiki/CMake:CPackPackageGenerators#DragNDrop_.28OSX_only.29 
) there are only two small lines, and my googling skills are apparently 
not good enough..

Here is an extraction of the relevant part of my CMakeLists.txt:
...
if(APPLE)
   add_executable(madx${BINARY_POSTFIX} MACOSX_BUNDLE ${srcfiles})
   SET_TARGET_PROPERTIES(madx${BINARY_POSTFIX} PROPERTIES 
CPACK_BUNDLE_STARTUP_COMMAND madx${BINARY_POSTFIX})
   SET_TARGET_PROPERTIES(madx${BINARY_POSTFIX} PROPERTIES 
CPACK_BUNDLE_ICON "${CMAKE_CURRENT_SOURCE_DIR}/cmakesrc/MadX.icns")
else(APPLE)
   add_executable(madx${BINARY_POSTFIX} ${srcfiles})
endif(APPLE)
...

I also set some CPACK_BUNDLE properties because I earlier on tried to 
use the BUNDLE generator, but from what I understand this should have 
nothing to do with the DragNDrop generator?

Thank you all for reading and thanks in advance for all help you might 
provide!

Cheers,
Yngve