Update opencpn to 4.0.0. Changes since 3.2.2:
- Increased performance in all modes, particularly when using OpenGL graphics
  acceleration.
- Additional network interface methods, including TCP/IP client/server and
  UDP broadcast.
- Support for multiple data source instances, including
    Filtering and prioritization of messages
    Output of NMEA data streams for real-time integration into ship systems
- Improved support for Mac OS X systems, including 64 bit native support.
- Integrated Tablet/Touch screen support.
- AIS Personal Locater Beacon (PLB) configuration and tracking.
- Enhanced AIS target tracking modes.
- GRIB PlugIn feature additions.
  Graphical GRIB email request generation.
  Moving particle wind overlay.
  Enhanced GRIB data type support.
- Dashboard PlugIn feature additions.
  More selectable instruments.
- Major update to embedded Users Manual.
- Measurably improved performance and reliability over all supported platforms.


(bouyer)

$NetBSD: patch-src_crashprint.cpp,v 1.1 2015/01/22 12:34:15 bouyer Exp $

backtrace support is linux-only for now

--- src/crashprint.cpp.orig	2015-01-20 16:46:17.000000000 +0000
+++ src/crashprint.cpp	2015-01-20 16:46:24.000000000 +0000
@@ -76,6 +76,7 @@
 // general functions
 
 void wxCrashPrint::Report () {
+#if defined(__linux__)
     wxString appname = wxTheApp->GetAppName();
 
     // get the backtrace with symbols
@@ -136,5 +137,5 @@
             wxPrintf (_T("%s\n"), lines[i].c_str());
         }
     }
-
+#endif
 }