Gentoo /home/josh/documents/university/408-system-stuff/ass-2/ass-2-408/kernel/lkm03 # make KERNEL=/lib/modules/5.1.11-gentoo19-06-19/build/
make ARCH="arm" CROSS_COMPILE=armv6j-unknown-linux-gnueabihf- -C /home/josh/documents/linux/raspian-kernel/linux SUBDIRS=/home/josh/documents/university/408-system-stuff/ass-2/ass-2-408/kernel/lkm03 modules
make[1]: Entering directory '/home/josh/documents/linux/raspian-kernel/linux'
scripts/Makefile.build:308: target '/home/josh/documents/university/408-system-stuff/ass-2/ass-2-408/kernel/lkm03/lkm03.c' doesn't match the target pattern
  Building modules, stage 2.
  MODPOST 0 modules
make[1]: Leaving directory '/home/josh/documents/linux/raspian-kernel/linux'