I've released KDbg 1.2.10 (stable series) and 1.9.5 (development series, beta stage). Both include fixes for the infamous "Using host libthread_db" error message when an executable is loaded. Both are available for download from
the usual locations, see http://members.nextra.at/johsixt/kdbgdownload.html

KDbg is a debugger, a frontend to gdb (and xsldbg).

Changelog for 1.2.10:

- Fixed the "Using host libthread_db" error message.
- Fixed inappropriate icon sizes.

Changelog for 1.9.5:

- Fixed some issues when the items in the environment variable list are selected.
- Added a command line option to attach to a process (thanks to Matthew Allen for the initial code).
- Fixed the "Using host libthread_db" error message properly.
- Fixed inappropriate icon sizes.

The major improvements in the 1.9.x series are:

- Editable program values.
- Easier debugging of shared libraries and dynamically loaded modules.
- XSLT debugging.
- Configurable keybindings.