debugging on Mac OSX

[Daniel Davidson]

Ho do you debug D executables on mac os x in which debug symbols 
are available (preferably a setup that works in emacs with gdb or 
gud-gdb)?

This thread seems to bring up the issue I am seeing:

http://forum.dlang.org/thread/k55tiv$28u3$1@digitalmars.com

but no solution is provided. Also, this bug,

http://d.puremagic.com/issues/show_bug.cgi?id=2741

seems to specifically talk to the issue and is closed RESOLVED 
FIXED. Yet I am unable to get it to work.

In this thread on usability of D dev environment from OSX, 
several people are having success developing D on OSX. Question 
is, do they debug and if so how? (hopefully not just print 
statements)

I am a switcher, just trying out the mac ecosystem. On ubuntu 
linux, for my rather small sample apps emacs (M-x gdb) just 
works, assuming I've built with rdmd specifying debug and that 
the command build only (to keep the binary). The symbols and line 
numbers are available.

Is there a setup for Mac that others are having success with?

Thanks
Dan