HttpWebRequest crashing outside MonoDevelop - mono

Question

I wrote a method to submit an error-report via HTTP POST. I run OSX-Lion and MonoDevelop. The code works when the application is called from MonoDevelop. When I run the .app it throws an exception:
System.TypeInitializationException: An exception was thrown by the type initializer for System.Net.WebRequest ---> System.DllNotFoundException: libc.dylib
at (wrapper managed-to-native) System.Platform:uname (intptr)
at System.Platform.get_IsMacOS () [0x00000] in <filename unknown>:0
at System.Net.WebRequest..cctor () [0x00000] in <filename unknown>:0
--- End of inner exception stack trace ---
at ch.fangorn.LIF.Access.SubmitCrash.Submit (Int32 projectId) [0x00000] in <filename unknown>:0
At the moment I call the Submit method directly not via a catch. Since it works when a debugger is attached I'm stranded. What I so far tried:
Build a mono application bundle (Create mac installer)
Build everything with Platform target x86
The beta version of Mono and MonoDevelop
The code that IMO causes the crash.
HttpWebRequest hwr = WebRequest.Create(turi) as HttpWebRequest;
string authInfo = user + ":" + password;
authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo));
hwr.Headers["Authorization"] = "Basic " + authInfo;
hwr.Method = "POST";
hwr.ContentType = "text/xml";
hwr.ContentLength = encData.Length;
Stream send = hwr.GetRequestStream();
send.Write(encData, 0, encData.Length);
send.Close();
hwr.GetResponse();
MonoDevelop: 2.8.5
Mono: 2.10.8

Answer 1

Symptom: System libraries not found (System.DllNotFoundException: libc.dylib)
when a mono created .app is started outside of MonoDevelop.
In the wrapper-script created by mono develop: MyApp.app/Contents/MacOS/MyApp
DYLD_FALLBACK_LIBRARY_PATH is set without including default. Since an empty
DYLD_FALLBACK_LIBRARY_PATH means the default this will remove default. System
libraries cannot be found.
In my opition the line should be:
export DYLD_FALLBACK_LIBRARY_PATH="$MONO_FRAMEWORK_PATH/lib:$DYLD_FALLBACK_LIBRARY_PATH:$(HOME)/lib:/usr/local/lib:/lib:/usr/lib"
Or a check if DYLD_FALLBACK_LIBRARY_PATH is empty would be even better.
I filed a bug-report: http://bugzilla.xamarin.com/show_bug.cgi?id=2727