# TODO: the goal of all this seems to just have depmod available


KMOD_NAME := kmod
KMOD_VERSION := 26
KMOD_URLDIR := https://cdn.kernel.org/pub/linux/utils/kernel/$(KMOD_NAME)
KMOD_TAREXT := tar.xz
KMOD_TARLETTER := J

# Do not use --enable-static or --disable-shared: the kmod configure script is voluntarily broken. m(
# Use make variables instead to link kmod statically.
# The -L directories need to be specified again, and the -I directory for liblzma
# also needs to appear in the CFLAGS make variable, because the kmod configure script
# is REALLY broken.

KMOD_CONFIGURE_OPTIONS := --with-gnu-ld --disable-gtk-doc-html --with-xz --disable-manpages --with-bashcompletiondir=$(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)/bash-completions
KMOD_CFLAGS := "-I $(OUTPUT)/build-build/opt/xz/include"
KMOD_LDFLAGS := "-s -L$(OUTPUT)/build-build/opt/xz/lib"


$(OUTPUT)/sources/$(KMOD_NAME)-$(KMOD_VERSION).$(KMOD_TAREXT): | $(OUTPUT)/tmp/.lh_prepared $(OUTPUT)/build-build/.lh_skarnet_installed
	exec setuidgid $(NORMALUSER) cd $(OUTPUT)/sources wget $(KMOD_URLDIR)/$(KMOD_NAME)-$(KMOD_VERSION).$(KMOD_TAREXT)

$(OUTPUT)/sources/.lh_$(KMOD_NAME)_dled: $(OUTPUT)/sources/$(KMOD_NAME)-$(KMOD_VERSION).$(KMOD_TAREXT) | $(OUTPUT)/build-build/.lh_skarnet_installed
	exec setuidgid $(NORMALUSER) s6-touch $@


$(OUTPUT)/build-build/.lh_$(KMOD_NAME)_copied: $(OUTPUT)/sources/.lh_$(KMOD_NAME)_dled | $(OUTPUT)/build-build/.lh_skarnet_installed
	exec setuidgid $(NORMALUSER) s6-rmrf $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)
	exec setuidgid $(NORMALUSER) s6-mkdir -p $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)
	exec setuidgid $(NORMALUSER) cd $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION) tar $(KMOD_TARLETTER)xpvf $(OUTPUT)/sources/$(KMOD_NAME)-$(KMOD_VERSION).$(KMOD_TAREXT)
	exec setuidgid $(NORMALUSER) s6-rename $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)/$(KMOD_NAME)-$(KMOD_VERSION) $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)/src
	exec setuidgid $(NORMALUSER) s6-touch $@

$(OUTPUT)/build-build/.lh_$(KMOD_NAME)_configured: $(OUTPUT)/build-build/.lh_$(KMOD_NAME)_copied $(OUTPUT)/build-build/.lh_xz_installed $(OUTPUT)/build-build/.lh_gcc | $(OUTPUT)/build-build/.lh_skarnet_installed
	exec setuidgid $(NORMALUSER) cd $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)/src export CFLAGS $(KMOD_CFLAGS) export LDFLAGS $(KMOD_LDFLAGS) ./configure --prefix=$(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION) $(KMOD_CONFIGURE_OPTIONS)
	exec setuidgid $(NORMALUSER) s6-touch $@

$(OUTPUT)/build-build/.lh_$(KMOD_NAME)_built: $(OUTPUT)/build-build/.lh_$(KMOD_NAME)_configured $(OUTPUT)/build-build/.lh_gcc | $(OUTPUT)/build-build/.lh_skarnet_installed
	exec setuidgid $(NORMALUSER) cd $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)/src $(MAKE) CFLAGS="-I $(OUTPUT)/build-build/opt/xz/include" LDFLAGS=$(KMOD_LDFLAGS) LIBS="-llzma"
	exec setuidgid $(NORMALUSER) s6-touch $@

$(OUTPUT)/build-build/.lh_$(KMOD_NAME)_installed: $(OUTPUT)/build-build/.lh_$(KMOD_NAME)_built $(OUTPUT)/build-build/.lh_gcc | $(OUTPUT)/tmp/.lh_prepared $(OUTPUT)/build-build/.lh_skarnet_installed
	exec setuidgid $(NORMALUSER) cd $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)/src $(MAKE) install
	exec setuidgid $(NORMALUSER) makenamelink $(OUTPUT)/build-build/opt $(KMOD_NAME) $(KMOD_NAME)-$(KMOD_VERSION) $(OUTPUT)/tmp
	exec setuidgid $(NORMALUSER) rm -f $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)/bin/depmod
	exec setuidgid $(NORMALUSER) s6-ln -s kmod $(OUTPUT)/build-build/opt/$(KMOD_NAME)-$(KMOD_VERSION)/bin/depmod
	exec setuidgid $(NORMALUSER) s6-touch $@