e be set explicitly in
avmshell-features.h.  (TODO: info for Flash Player and
avmhost-features.h.)

<LI><P> Then the profilers are enabled by uncommenting #defines in
MMgc.h: either MMGC_CONSERVATIVE_PROFILER or MMGC_DELETION_PROFILER.

<LI><P> You <em>really, really</em> need to have source information
enabled in the VMPI layer.  For Windows it's on by default; on Mac you
may need to enable the call to <tt>startATOSProcess</tt> in the
function <tt>VMPI_setupPCResolution</tt> in MMgcPortMac.cpp.

<LI><P> Th