Graphical debugging depends on /dev/ptypd

[Jon Martini]

Binary package hint: gnat-gps

Package information:
gnat-gps
4.3-2008.08.09ubuntu1

System Information:
Ubuntu
Release 9.04 (jaunty)
Kernel Linux 2.6.28-11-generic
GNOME 2.26.1

Problem summary:
gnat-gps works under Ubuntu 8.10, but 9.04 removed /dev/ptypd which broke graphical debugging.

Problem creation:
From gnat-gps start a debugging session for a project that is compiled for debugging by selecting Debug->Initialize->"Your program's name" from the the menu. Alternatively you can initialize a debugging session and use the 'file' gdb command to load a program for debugging.

Switch to the Debugger Console and attempt the run the program loaded.

(gdb) run
/dev/ptypd: No such file or directory.

Program exited with code 01.
You can't do that without a process to debug.
(gdb)

The same compiled executable can be run by gdb on the command line, so it is not a problem with the program being debugged.

[Robert Richardson (robert-initek)]

Rebuilding the package after modifying debian/rules:
CFLAGS := -g -O2 -DHAVE_PTSNAME -DHAVE_GRANTPT -DHAVE_UNLOCKPT
solves the problem.

These macros are required for common/gnat/gexpect_tty.c to work with /dev/ptmx.

[Martin Schneeweis (snowy-schneeweis)]

This seems to be a solution for the problem above:
https://answers.launchpad.net/ubuntu/+question/75246