Re: Debug packages

["Rebecca N. Palmer" <r.palmer@bham.ac.uk>]

The purpose of a -dbg package is to provide a mapping between binary 
addresses and source line numbers/variable names, not to provide the 
source itself: it's working if your debug backtraces are of the form

#3  0x0000000000ed4188 in SGPropertyNode::set_string (this=0x7eaa480,
    val=0x20d79a0 "Shaders/cloud-shadowfunc.frag")
    at /home/palmer/fs_dev/git/simgear/simgear/props/props.cxx:511

(note the file name and line number) rather than

#2  0x00007ffff5aef83d in g_input_stream_read ()
   from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#3  0x00007ffff669c3e5 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0

The source itself is in the source package, which can be installed with 
"apt-get source $package" if you have a deb-src line in 
/etc/apt/sources.list.  This installs it in the current directory owned 
by the current user (i.e. conveniently editable), while apt-get 
install'd files are normally owned and editable only by root.