I was wondering whether it is _supposed_ to be possible to have a perl executable with debugging symbols, and one without debugging symbols, co-exist with the same prefix? What I usually do when I get a new Perl version (RC or better), I make the following versions: - standard - threaded - standard with debugging symbols - threaded with debugging symbols with as the only difference the ./configure line (whether or not to have "-Dusethreads" and "-Doptimize='-g'") If this is not possible, is it at least officially possible to do this for threaded and unthreaded executables? I was living under the impression that this should always work. At least in the given order of making the executables. I'm seeing weird things now on Mac OS X with 5.8.3-RC1 and wonder if I'm looking at a bug or whether reality has finally caught up with me... ;-) LizThread Next