On 13 Sep 2011, at 00:31, Martin wrote: > Maybe this will help? > > make.exe all OPT="-gl -gw -godwarfsets -O1 " You should use -O-1 instead of -O1. The default for "make all" is "-O2", and "-O2 -O1" is the same as "-O2" (it says "enable -O2 optimizations and also -O1 optimizations", but -O2 already includes -O1). Jonas