I will try now r11869 by using lower case and/or upper case (parameter).
like
make all TARGET=MESS OSD=winui or make all TARGET=MESS OSD=WINUI
It doesn�t help too.
with TARGET=MESS OSD=WINUI I get pretty much more errors, additional to the obj/WINUI/mess/mess/... errors a lot of obj/WINUI/MESS/libcpu.a and obj/WINUI/MESS/libemu.a errors.
