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#!/usr/bin/make -f
# Configuration for aufs in Debian
define exported
ifneq (,$(shell grep '^.*[[:space:]]$(1)[[:space:]]vmlinux[[:space:]]EXPORT_SYMBOL' $(srctree)/Module.symvers))
export $(2)=y
export EXTRA_CFLAGS += -D$(2)
endif
endef
# Configuration for aufs in Debian
export CONFIG_AUFS = m
export CONFIG_AUFS_LOCAL = y
export CONFIG_AUFS_BRANCH_MAX_127 = y
export CONFIG_AUFS_RR_SQUASHFS = y
export EXTRA_CFLAGS = -I $(M)/include \
-DCONFIG_AUFS_BRANCH_MAX_127 -UCONFIG_AUFS \
-DCONFIG_AUFS_MODULE \
-DCONFIG_AUFS_LOCAL \
-DCONFIG_AUFS_RR_SQUASHFS
# Disable sysaufs on ARM, as there is no cmpxchg
ifneq ($(shell dpkg-architecture -qDEB_BUILD_ARCH),arm)
ifneq ($(shell dpkg-architecture -qDEB_BUILD_ARCH),armel)
export CONFIG_AUFS_SYSAUFS = y
export EXTRA_CFLAGS += -DCONFIG_AUFS_SYSAUFS
endif
endif
ifdef SUBLEVEL
ifeq "y" "$(shell test $(SUBLEVEL) -ge 23 && echo y)"
export EXTRA_CFLAGS += -DCONFIG_AUFS_SPLICE_PATCH
endif
endif
ifneq (,$(srctree))
ifeq "y" "$(shell test $(SUBLEVEL) -lt 22 && echo y)"
$(eval $(call exported,ksize,CONFIG_AUFS_KSIZE_PATCH)) #ksize
endif
$(eval $(call exported,__lookup_hash,CONFIG_AUFS_LHASH_PATCH)) #lhash
$(eval $(call exported,put_filp,CONFIG_AUFS_PUT_FILP_PATCH)) #put_filp
$(eval $(call exported,do_splice_from,CONFIG_AUFS_SPLICE_PATCH2)) # splice_patches
$(eval $(call exported,security_inode_permission,CONFIG_AUFS_SEC_PERM_PATCH)) # SEC_PERM
endif
# If lhash and put_filp are not available, activate FAKE_DM.
ifndef CONFIG_AUFS_PUT_FILP_PATCH
ifndef CONFIG_AUFS_LHASH_PATCH
export CONFIG_AUFS_FAKE_DM = y
export EXTRA_CFLAGS += -DCONFIG_AUFS_FAKE_DM
endif
endif
ifdef CONFIG_AUFS_LHASH_PATCH
export CONFIG_AUFS_BR_NFS = y
export EXTRA_CFLAGS += -DCONFIG_AUFS_BR_NFS
endif
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