make[2]: Leaving directory `/root/media_build/linux'
./scripts/make_kconfig.pl /lib/modules/3.4.43-r2-s-rm3+/build /lib/modules/3.4.43-r2-s-rm3+/build 1
Preparing to compile for kernel version 3.4.43
File not found: /lib/modules/3.4.43-r2-s-rm3+/build/.config at ./scripts/make_kconfig.pl line 33, <IN> line 4.
make[1]: *** [allyesconfig] Error 2
make[1]: Leaving directory `/root/media_build/v4l'
make: *** [allyesconfig] Error 2
can't select all drivers at ./build line 490.