I got this :
mingw32-gcc -I./include -I../lib/kjs/include -Wall -Werror -D_DISABLE_TIDENTS -D__3GB__ -D__NTOSKRNL__ -I. -D_SEH_NO_NATIVE_NLG -I../include -I../w32api/include -pipe -march=i486 -D_M_IX86 -g -c ke/main.c -o ke/main.o ke/main.c: In function `InitSystemSharedUserPage': ke/main.c:266: error: structure has no member named `DosDeviceMap' make[1]: *** [ke/main.o] Error 1 make[1]: Leaving directory `/home/dave2/ros/reactos/ntoskrnl'
Thanks, David