# Out of the box, the build with this Makefile only works in FHS environments,
# such as on Ubuntu or Debian. On NixOS, you either need to open an FHS
# environment using a Nix shell or build this from a specially crafted Nix
# derivation.
#
# This file follows the conventions written down here:
# https://docs.kernel.org/kbuild/modules.html
# Make it possible to override the kernel src tree location from Nix derivation.
KERNEL ?= $(shell uname -r)
KERNELDIR ?= /lib/modules/$(KERNEL)/build/
ccflags-y := -std=gnu11 -Wno-declaration-after-statement
.PHONY: default
default: modules
# -m: Build as module.
obj-m = msi-ec.o
.PHONY: modules
modules:
	@#"M=": Module source. Special variable of the kernel's main Makefile.
	$(MAKE) -C $(KERNELDIR) M=$(PWD) modules
.PHONY: modules_install
modules_install:
	$(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install
6.11-kernel-patch:
	git apply 6.11-kernel.patch

older-kernel-patch:
	git apply older-kernel.patch