_INC_BACKTRACE_FUNC   46 src/simh/backtrace_func.c # ifndef _INC_BACKTRACE_FUNC
_INC_BACKTRACE_FUNC   46 src/simh/backtrace_main.c # ifdef _INC_BACKTRACE_FUNC
_INC_BACKTRACE_FUNC 1501 src/simh/scp.c #   ifdef _INC_BACKTRACE_FUNC