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include Kbuild

INSTALL_MOD_DIR ?= extra

SUBDIR_TARGETS = icp lua zstd

all: modules
distclean maintainer-clean: clean
install: modules_install
uninstall: modules_uninstall
check:

.PHONY: all distclean maintainer-clean install uninstall check distdir \
	modules modules-Linux modules-FreeBSD modules-unknown \
	clean clean-Linux clean-FreeBSD \
	modules_install modules_install-Linux modules_install-FreeBSD \
	modules_uninstall modules_uninstall-Linux modules_uninstall-FreeBSD

# Filter out options that FreeBSD make doesn't understand
getflags = ( \
set -- \
  $(filter-out --%,$(firstword $(MFLAGS))) \
  $(filter -I%,$(MFLAGS)) \
  $(filter -j%,$(MFLAGS)); \
fmakeflags=""; \
while getopts :deiI:j:knqrstw flag; do \
  case $$flag in \
    \?) :;; \
    :) if [ $$OPTARG = "j" ]; then \
	 ncpus=$$(sysctl -n kern.smp.cpus 2>/dev/null || :); \
	 if [ -n "$$ncpus" ]; then fmakeflags="$$fmakeflags -j$$ncpus"; fi; \
       fi;; \
    d) fmakeflags="$$fmakeflags -dA";; \
    *) fmakeflags="$$fmakeflags -$$flag$$OPTARG";; \
  esac; \
done; \
echo $$fmakeflags \
)
FMAKEFLAGS = -C @abs_srcdir@ -f Makefile.bsd $(shell $(getflags))

ifneq (@abs_srcdir@,@abs_builddir@)
FMAKEFLAGS += MAKEOBJDIR=@abs_builddir@
endif
FMAKE = env -u MAKEFLAGS make $(FMAKEFLAGS)

modules-Linux:
	list='$(SUBDIR_TARGETS)'; for targetdir in $$list; do \
		$(MAKE) -C $$targetdir; \
	done
	$(MAKE) -C @LINUX_OBJ@ M=`pwd` @KERNEL_MAKE@ CONFIG_ZFS=m modules

modules-FreeBSD:
	+$(FMAKE)

modules-unknown:
	@true

modules: modules-@ac_system@

clean-Linux:
	@# Only cleanup the kernel build directories when CONFIG_KERNEL
	@# is defined.  This indicates that kernel modules should be built.
@CONFIG_KERNEL_TRUE@	$(MAKE) -C @LINUX_OBJ@ M=`pwd` @KERNEL_MAKE@ clean

	if [ -f @LINUX_SYMBOLS@ ]; then $(RM) @LINUX_SYMBOLS@; fi
	if [ -f Module.markers ]; then $(RM) Module.markers; fi

	find . -name '*.ur-safe' -type f -print | xargs $(RM)

clean-FreeBSD:
	+$(FMAKE) clean

clean: clean-@ac_system@

modules_install-Linux:
	@# Install the kernel modules
	$(MAKE) -C @LINUX_OBJ@ M=`pwd` modules_install \
		INSTALL_MOD_PATH=$(DESTDIR)$(INSTALL_MOD_PATH) \
		INSTALL_MOD_DIR=$(INSTALL_MOD_DIR) \
		KERNELRELEASE=@LINUX_VERSION@
	@# Remove extraneous build products when packaging
	kmoddir=$(DESTDIR)$(INSTALL_MOD_PATH)/lib/modules/@LINUX_VERSION@; \
	if [ -n "$(DESTDIR)" ]; then \
		find $$kmoddir -name 'modules.*' | xargs $(RM); \
	fi
	sysmap=$(DESTDIR)$(INSTALL_MOD_PATH)/boot/System.map-@LINUX_VERSION@; \
	if [ -f $$sysmap ]; then \
		depmod -ae -F $$sysmap @LINUX_VERSION@; \
	fi

modules_install-FreeBSD:
	@# Install the kernel modules
	+$(FMAKE) install

modules_install: modules_install-@ac_system@

modules_uninstall-Linux:
	@# Uninstall the kernel modules
	kmoddir=$(DESTDIR)$(INSTALL_MOD_PATH)/lib/modules/@LINUX_VERSION@; \
	for objdir in $(ZFS_MODULES); do \
		$(RM) -R $$kmoddir/$(INSTALL_MOD_DIR)/$$objdir; \
	done

modules_uninstall-FreeBSD:
	@false

modules_uninstall: modules_uninstall-@ac_system@

distdir:
	(cd @srcdir@ && find $(ZFS_MODULES) os -name '*.[chS]') | \
	while read path; do \
		mkdir -p $$distdir/$${path%/*}; \
		cp @srcdir@/$$path $$distdir/$$path; \
	done; \
	cp @srcdir@/Makefile.bsd $$distdir/Makefile.bsd