If i compile without "/home/fasoz/soa/tudos/kernel/fiasco/src/boot/ia32/boot.S"
 gcc -c -MD -MP -MF .boot.S.d.new -o boot.o -nostdinc -I/home/fasoz/soa/tudos/kernel/fiasco/src/types/ia32 -I/home/fasoz/soa/tudos/kernel/fiasco/src/types -I/home/fasoz/soa/tudos/kernel/fiasco/src/drivers/ia32 -I/home/fasoz/soa/tudos/kernel/fiasco/src/drivers -I/home/fasoz/soa/tudos/kernel/fiasco/src/kern/ia32 -I/home/fasoz/soa/tudos/kernel/fiasco/src/kern/shared -I/home/fasoz/soa/tudos/kernel/fiasco/src/kern -I/home/fasoz/soa/tudos/kernel/fiasco/src/boot -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/libk/ia32 -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/libk -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/kern/include -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/amm -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/gzip -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/disasm -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/perfctr -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/regex -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/minilibc/ia32/include -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/minilibc/include -I. -Iauto -I/usr/lib/gcc/i486-linux-gnu/4.1.2//include -DASSEMBLER
gcc: unrecognized option `-MP'
gcc: unrecognized option `-MF'
gcc: .boot.S.d.new: linker input file unused since linking not done


but, if I use:
g++ -c -MD -MP -MF .boot.S.d.new -o boot.o -nostdinc -I/home/fasoz/soa/tudos/kernel/fiasco/src/types/ia32 -I/home/fasoz/soa/tudos/kernel/fiasco/src/types -I/home/fasoz/soa/tudos/kernel/fiasco/src/drivers/ia32 -I/home/fasoz/soa/tudos/kernel/fiasco/src/drivers -I/home/fasoz/soa/tudos/kernel/fiasco/src/kern/ia32 -I/home/fasoz/soa/tudos/kernel/fiasco/src/kern/shared -I/home/fasoz/soa/tudos/kernel/fiasco/src/kern -I/home/fasoz/soa/tudos/kernel/fiasco/src/boot -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/libk/ia32 -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/libk -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/kern/include -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/amm -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/gzip -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/disasm -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/perfctr -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/regex -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/minilibc/ia32/include -I/home/fasoz/soa/tudos/kernel/fiasco/src/lib/minilibc/include -I. -Iauto -I/usr/lib/gcc/i486-linux-gnu/4.1.2//include -DASSEMBLER /home/fasoz/soa/tudos/kernel/fiasco/src/boot/ia32/boot.S


it compiles, where can I modify the makefile???