After setting LD_LIBRARY_PATHY to /usr/lib/debug, and firing up the debugger, I can see that the correct libstdc++.so is being found (i.e., the one with the debugging symbols). And stepping into those functions works, in that it knows the file/line location.
However, the debugger can't print any useful source, because of course it doesn't know where to look to get the libstdc++ source, which makes the dbg package much less useful. Am I missing a package? I know enough about the libstdc++ source (*cough* :-) to know that simply pointing ddd/gdb at the top of the library source tree won't work, because the files are renamed during build and install. Is there a "source package for use when debugging"? Thanks, Phil -- I would therefore like to posit that computing's central challenge, viz. "How not to make a mess of it," has /not/ been met. - Edsger Dijkstra, 1930-2002