I am trying to add a sample 'v4l2-mfc-encoder' program to '{raspberrypi dir}linux/samples/' The 'v4l2-mfc-encoder' program's Makefile is built using 'arm gcc': # Toolchain path TCPATH = arm-linux-gnueabi- KERNELHEADERS = /home/kamil/praca/w1-party/kernel/headers/include CC = ${TCPATH}gcc AR = "${TCPATH}ar rc" AR2 = ${TCPATH}ranlib make -j4 But when I compile raspberry bi source, I get error saying: /usr/bin/arm-linux-gnueabi-ld: cannot find samples/v4l2-mfc-encoder/built-in.o: No such file or directory make[1]: *** [samples/built-in.o] Error 1 make[1]: Target `__build' not remade because of errors. make: *** [vmlinux] Error 2 make: Target `_all' not remade because of errors. What does it mean by 'built-in.o' No Such File or directory? There is no built-in.o in my 'v4l2-mfc-encoder' Make file.