No -flto compiler option in debug mode under Linux

Under Linux (at least OpenSuse 13.1 64 bits) the <i>-flto</i> compiler option combined with the debug mode <i>-g</i> generates a binary the debugger gdb is unable to work with.
I'm using gcc 4.8.1 and gdb 7.7
The <i>-flto</i> option is an optimization, and all optimizations should be turned off in debug mode