msvcrt unimplemented function calls

[Peter Urbanec]

I see calls to the following two functions just prior to a crash when 
testing wine64. Any idea what these are?

wine: Call from 0x7b8497d9 to unimplemented function 
msvcp80.dll.??0?$complex@N@std@@QEAA@AEBN0@Z, aborting
wine: Call from 0x7f7b04cf40d9 to unimplemented function 
MSVCR80.dll.__C_specific_handler, aborting
err:seh:setup_exception stack overflow 2432 bytes in thread 0009 eip 
00007f7b04d32341 esp 00007f7b03b10c80 stack 
0x7f7b03b10000-0x7f7b03b11000-0x7f7b03c10000
Segmentation fault

Thanks.