No valid backtrace from EIPs

Tested with 3 different rpt/debug pairs compiled on Windows with the new makefile. GDB reads the symbols then spits out a rather useless "Breakpoint 1 at <eip>" which is pretty useless.

Sample rpt/debug pair:
https://cdn.discordapp.com/attachments/569169328386211883/888219734632460328/srb2-am-spin.RPT
https://cdn.discordapp.com/attachments/569169328386211883/888219788202090546/srb2-am-spin.exe.debug