I’m running emacs 23.4 on OSX, obtained from emacsformacosx.com. I’m writing matlab code, using the latest code from matlab-emacs.sourceforge.net. This mode includes integration with GUD for stepping through matlab code.
I can set breakpoints and step through matlab code with no problems. However, when I set breakpoints, no “stop-sign” icon appears next to the lines that have breakpoints. The arrow icon indicating the line on which you are stopped does appear.
I’ve seen emacs screenshots online that show stop-sign icons, but I can’t find any GUD documentation on this.
How can I get these icons to appear?
The generic GUD mode does not support this. Recent versions of Emacs has a special gdb mode which uses the gdb machine interface and therefore can show breakpoints. I think the matlab debugger is based on GUD.