ruby_debug        461 encoding.c         VALUE debug = ruby_debug;
ruby_debug        473 encoding.c         ruby_debug = Qfalse;
ruby_debug        476 encoding.c         ruby_debug = debug;
ruby_debug        372 eval.c             if (RTEST(ruby_debug) && !NIL_P(e = th->errinfo) &&
ruby_debug        105 ext/tk/tcltklib.c #define DUMP1(ARG1) if (ruby_debug) { fprintf(stderr, "tcltklib: %s\n", ARG1); fflush(stderr); }
ruby_debug        106 ext/tk/tcltklib.c #define DUMP2(ARG1, ARG2) if (ruby_debug) { fprintf(stderr, "tcltklib: ");\
ruby_debug        108 ext/tk/tcltklib.c #define DUMP3(ARG1, ARG2, ARG3) if (ruby_debug) { fprintf(stderr, "tcltklib: ");\
ruby_debug       5040 ext/tk/tcltklib.c     rb_debug_bup   = ruby_debug;
ruby_debug       5101 ext/tk/tcltklib.c         ruby_debug   = Qfalse;
ruby_debug       5106 ext/tk/tcltklib.c         ruby_debug   = rb_debug_bup;
ruby_debug       5115 ext/tk/tcltklib.c         ruby_debug   = Qfalse;
ruby_debug       5118 ext/tk/tcltklib.c         ruby_debug   = rb_debug_bup;
ruby_debug       5126 ext/tk/tcltklib.c         ruby_debug   = Qfalse;
ruby_debug       5129 ext/tk/tcltklib.c         ruby_debug   = rb_debug_bup;
ruby_debug       5136 ext/tk/tcltklib.c     ruby_debug   = rb_debug_bup;
ruby_debug        695 ruby.c         	    ruby_debug = Qtrue;
ruby_debug        952 ruby.c         		ruby_debug = Qtrue;
ruby_debug       1758 ruby.c             rb_define_variable("$DEBUG", &ruby_debug);
ruby_debug       1759 ruby.c             rb_define_variable("$-d", &ruby_debug);
ruby_debug       1034 sprintf.c      	if (RTEST(ruby_debug)) rb_raise(rb_eArgError, "%s", mesg);
ruby_debug        410 thread.c       		      th->abort_on_exception || RTEST(ruby_debug))) {