just to keep you informed:
opencpn with ppa
pencpn/opencpn will not start after dist-upgrade to wily.
Fatal Error: Mismatch between the program and library build versions detected.
The library used 2.8 (no debug,Unicode,compiler with C++ ABI 1009,wx containers,compatible with 2.6),
and your program used 2.8 (no debug,Unicode,compiler with C++ ABI 1002,wx containers,compatible with 2.6).
We all appreciate your work