cannot pass objects of non-POD type

[Eirik Nesje]

Hi

I have the following statment that works using Visual Studio 7.1 Standard :

wxSQL += wxString::Format(wxT("%d"), file.GetSize());

(wxSQL is a wxString).

But using MinGW i get this message :

*** traverseframe.h:80: warning: cannot pass objects of non-POD type 
`class wxULongLong' through `...'; call will abort at runtime

Which strangly is a warning but instant terminates my application when 
executing the above statement. Should I not use the format statment this 
way or anyone have a hint on what to do to avoid this message ?

I'm using wxWidget 2.8.7 on windows. The compile settings are :

g++.exe -c -o MinGWUnicodeRelease/traverseapp.o -fno-rtti 
-fno-pcc-struct-return -fstrict-aliasing -Wall -D__WXMSW__ 
-D__GNUWIN32__ -D__WIN95__ -DUNICODE   -O -Wall 
-I"C:/wxWidgets-2.8.7/include" -I"C:/wxWidgets-2.8.7/contrib/include" 
-I"C:/wxWidgets-2.8.7/lib/gcc_lib/mswu" traverseapp.cpp

Regards
Eirik