wings3d compile

when trying to compile wings3d 0.99.03 i had to change
plugins_src/commands/wpc_constraints.erl line 18
to:
-include_lib("esdl/include/sdl_keyboard.hrl").
... wouldnt find the lib otherwise and complain:

./wpc_constraints.erl:18: can't find include file "sdl_keyboard.hrl"
./wpc_constraints.erl:1136: undefined macro ''KMOD_SHIFT''
./wpc_constraints.erl:784: function mod_key_combo/0 undefined
...

to get the md3 plugin i also had to add it in plugins_src/import_export/Makefile
to the MODULES list at line 33
i just copied the compiled plugins/import_export/wpc_md3.beam to my binary install plugin directory then.