Draft: Gdb: use gdb from LCG release
As discussed on !1170 (merged) there is no need to build our own gdb anymore. This MR does:
- Cleanup of
External/Gdb
before retirement. Thegdbhacks
will be moved toatlas/athena
where they are easier to update. TheatlasAddress2Line
utility is unmaintained/obsolete. We keep the package around just in case we need to build gdb again ourselves. - Add a
Findgdb
module to setupgdb
from LCG. - Remove the build of gdb and add
find_package(gdb)
to all relevant projects.
cc @ssnyder
This MR requires !1176 (merged).