libdevel-backtrace-perl 0.12-1 (powerpc binary) in ubuntu precise

 Devel::Backtrace provides methods for accessing backtrace information, i.e.
 it allows to see the "route" through a script. It returns short or detailed
 information about backtrace points as strings.
 .
 The included Devel::DollarAt module gives some additional functionality to
 the $@ scalar, i.e. it makes interpreting exceptions easier.