backtraces_string 595 gc/misc.c char * backtraces_string = GETENV("GC_BACKTRACES"); backtraces_string 596 gc/misc.c if (0 != backtraces_string) { backtraces_string 597 gc/misc.c GC_backtraces = atol(backtraces_string); backtraces_string 598 gc/misc.c if (backtraces_string[0] == '\0') GC_backtraces = 1;