#! /usr/bin/make

# WARNING:
# only add extensions here that are either present in the kernel, or whose
# header files are present in the include/linux directory of this iptables
# package (HW)
#
PF_EXT_SLIB:=ah addrtype conntrack ecn icmp iprange owner policy realm recent tos ttl unclean CLUSTERIP DNAT ECN LOG MASQUERADE MIRROR NETMAP REDIRECT REJECT SAME SNAT TOS TTL ULOG
PF6_EXT_SLIB:=ah dst eui64 frag hbh hl icmp6 ipv6header mh owner policy rt HL LOG REJECT
PFX_EXT_SLIB:=connbytes connmark connlimit comment dccp dscp esp hashlimit helper length limit mac mark multiport physdev pkttype quota sctp state statistic standard string tcp tcpmss time u32 udp CLASSIFY CONNMARK DSCP MARK NFLOG NFQUEUE NOTRACK TCPMSS TRACE

PF_EXT_SELINUX_SLIB:=
PF6_EXT_SELINUX_SLIB:=
PFX_EXT_SELINUX_SLIB:=CONNSECMARK SECMARK

ifeq ($(DO_SELINUX), 1)
PF_EXT_SE_SLIB:=$(PF_EXT_SELINUX_SLIB)
PF6_EXT_SE_SLIB:=$(PF6_EXT_SELINUX_SLIB)
PFX_EXT_SE_SLIB:=$(PFX_EXT_SELINUX_SLIB)
endif

# Optionals
PF_EXT_SLIB_OPTS:=$(foreach T,$(wildcard extensions/.*-test),$(shell KERNEL_DIR=$(KERNEL_DIR) $(T)))
PF6_EXT_SLIB_OPTS:=$(foreach T,$(wildcard extensions/.*-test6),$(shell KERNEL_DIR=$(KERNEL_DIR) $(T)))
PFX_EXT_SLIB_OPTS:=$(foreach T,$(wildcard extensions/.*-testx),$(shell KERNEL_DIR=$(KERNEL_DIR) $(T)))

PF_EXT_ALL_SLIB:=$(PF_EXT_SLIB) $(PF_EXT_SE_SLIB) $(PF_EXT_SLIB_OPTS)
PF6_EXT_ALL_SLIB:=$(PF6_EXT_SLIB) $(PF6_EXT_SE_SLIB) $(PF6_EXT_SLIB_OPTS)
PFX_EXT_ALL_SLIB:=$(PFX_EXT_SLIB) $(PFX_EXT_SE_SLIB) $(PFX_EXT_SLIB_OPTS)

# libipt*.c with libipt*.man
PF_EXT_MAN_ALL_MATCHES:=$(foreach T,$(PF_EXT_ALL_SLIB),$(shell test -f extensions/libipt_$(T).man && grep -q register_match extensions/libipt_$(T).c  && echo $(T)))
PF_EXT_MAN_ALL_TARGETS:=$(foreach T,$(PF_EXT_ALL_SLIB),$(shell test -f extensions/libipt_$(T).man && grep -q register_target extensions/libipt_$(T).c && echo $(T)))
PF6_EXT_MAN_ALL_MATCHES:=$(foreach T,$(PF6_EXT_ALL_SLIB),$(shell test -f extensions/libip6t_$(T).man && grep -q register_match6 extensions/libip6t_$(T).c  && echo $(T)))
PF6_EXT_MAN_ALL_TARGETS:=$(foreach T,$(PF6_EXT_ALL_SLIB),$(shell test -f extensions/libip6t_$(T).man && grep -q register_target6 extensions/libip6t_$(T).c && echo $(T)))

# libxt*.c with libipt*.man
PF_EXT_MAN_ALL_MATCHES+=$(foreach T,$(PFX_EXT_ALL_SLIB),$(shell test -f extensions/libipt_$(T).man && grep -q xtables_register_match extensions/libxt_$(T).c  && echo $(T)))
PF_EXT_MAN_ALL_TARGETS+=$(foreach T,$(PFX_EXT_ALL_SLIB),$(shell test -f extensions/libipt_$(T).man && grep -q xtables_register_target extensions/libxt_$(T).c && echo $(T)))
PF6_EXT_MAN_ALL_MATCHES+=$(foreach T,$(PFX_EXT_ALL_SLIB),$(shell test -f extensions/libip6t_$(T).man && grep -q xtables_register_match extensions/libxt_$(T).c  && echo $(T)))
PF6_EXT_MAN_ALL_TARGETS+=$(foreach T,$(PFX_EXT_ALL_SLIB),$(shell test -f extensions/libip6t_$(T).man && grep -q xtables_register_target extensions/libxt_$(T).c && echo $(T)))

# libxt*.c with libxt*.man
PFX_EXT_MAN_ALL_MATCHES=$(foreach T,$(PFX_EXT_ALL_SLIB),$(shell test -f extensions/libxt_$(T).man && grep -q xtables_register_match extensions/libxt_$(T).c  && echo $(T)))
PFX_EXT_MAN_ALL_TARGETS=$(foreach T,$(PFX_EXT_ALL_SLIB),$(shell test -f extensions/libxt_$(T).man && grep -q xtables_register_target extensions/libxt_$(T).c && echo $(T)))

# libipt*.man
PF_EXT_MAN_MATCHES:=$(filter $(PF_EXT_SLIB), $(PF_EXT_MAN_ALL_MATCHES))
PF_EXT_MAN_MATCHES+=$(filter $(PFX_EXT_SLIB), $(PF_EXT_MAN_ALL_MATCHES))
PF_EXT_MAN_MATCHES+=$(filter $(PF_EXT_SE_SLIB), $(PF_EXT_MAN_ALL_MATCHES))
PF_EXT_MAN_MATCHES+=$(filter $(PFX_EXT_SE_SLIB), $(PF_EXT_MAN_ALL_MATCHES))

# libipt*.man
PF_EXT_MAN_TARGETS:=$(filter $(PF_EXT_SLIB), $(PF_EXT_MAN_ALL_TARGETS))
PF_EXT_MAN_TARGETS+=$(filter $(PFX_EXT_SLIB), $(PF_EXT_MAN_ALL_TARGETS))
PF_EXT_MAN_TARGETS+=$(filter $(PF_EXT_SE_SLIB), $(PF_EXT_MAN_ALL_TARGETS))
PF_EXT_MAN_TARGETS+=$(filter $(PFX_EXT_SE_SLIB), $(PF_EXT_MAN_ALL_TARGETS))

# libipt*.man
PF_EXT_MAN_EXTRA_MATCHES:=$(filter-out $(PF_EXT_MAN_MATCHES), $(PF_EXT_MAN_ALL_MATCHES))
PF_EXT_MAN_EXTRA_TARGETS:=$(filter-out $(PF_EXT_MAN_TARGETS), $(PF_EXT_MAN_ALL_TARGETS))

# libip6t*.man
PF6_EXT_MAN_MATCHES:=$(filter $(PF6_EXT_SLIB), $(PF6_EXT_MAN_ALL_MATCHES))
PF6_EXT_MAN_MATCHES+=$(filter $(PFX_EXT_SLIB), $(PF6_EXT_MAN_ALL_MATCHES))
PF6_EXT_MAN_MATCHES+=$(filter $(PF6_EXT_SE_SLIB), $(PF6_EXT_MAN_ALL_MATCHES))
PF6_EXT_MAN_MATCHES+=$(filter $(PFX_EXT_SE_SLIB), $(PF6_EXT_MAN_ALL_MATCHES))

# libip6t*.man
PF6_EXT_MAN_TARGETS:=$(filter $(PF6_EXT_SLIB), $(PF6_EXT_MAN_ALL_TARGETS))
PF6_EXT_MAN_TARGETS+=$(filter $(PFX_EXT_SLIB), $(PF6_EXT_MAN_ALL_TARGETS))
PF6_EXT_MAN_TARGETS+=$(filter $(PF6_EXT_SE_SLIB), $(PF6_EXT_MAN_ALL_TARGETS))
PF6_EXT_MAN_TARGETS+=$(filter $(PFX_EXT_SE_SLIB), $(PF6_EXT_MAN_ALL_TARGETS))

# libip6t*.man
PF6_EXT_MAN_EXTRA_MATCHES:=$(filter-out $(PF6_EXT_MAN_MATCHES), $(PF6_EXT_MAN_ALL_MATCHES))
PF6_EXT_MAN_EXTRA_TARGETS:=$(filter-out $(PF6_EXT_MAN_TARGETS), $(PF6_EXT_MAN_ALL_TARGETS))

# libxt*.man
PFX_EXT_MAN_MATCHES:=$(filter $(PFX_EXT_SLIB), $(PFX_EXT_MAN_ALL_MATCHES))
PFX_EXT_MAN_MATCHES+=$(filter $(PFX_EXT_SE_SLIB), $(PFX_EXT_MAN_ALL_MATCHES))
PFX_EXT_MAN_TARGETS:=$(filter $(PFX_EXT_SLIB), $(PFX_EXT_MAN_ALL_TARGETS))
PFX_EXT_MAN_TARGETS+=$(filter $(PFX_EXT_SE_SLIB), $(PFX_EXT_MAN_ALL_TARGETS))

# libxt*.man
PFX_EXT_MAN_EXTRA_MATCHES:=$(filter-out $(PFX_EXT_MAN_MATCHES), $(PFX_EXT_MAN_ALL_MATCHES))
PFX_EXT_MAN_EXTRA_TARGETS:=$(filter-out $(PFX_EXT_MAN_TARGETS), $(PFX_EXT_MAN_ALL_TARGETS))

ifneq ($(DO_SELINUX), 1)
PF_EXT_MAN_EXTRA_MATCHES:=$(filter-out $(PF_EXT_SELINUX_SLIB), $(PF_EXT_MAN_EXTRA_MATCHES))
PF_EXT_MAN_EXTRA_TARGETS:=$(filter-out $(PF_EXT_SELINUX_SLIB), $(PF_EXT_MAN_EXTRA_TARGETS))
PF_EXT_MAN_EXTRA_MATCHES:=$(filter-out $(PFX_EXT_SELINUX_SLIB), $(PF_EXT_MAN_EXTRA_MATCHES))
PF_EXT_MAN_EXTRA_TARGETS:=$(filter-out $(PFX_EXT_SELINUX_SLIB), $(PF_EXT_MAN_EXTRA_TARGETS))

PF6_EXT_MAN_EXTRA_MATCHES:=$(filter-out $(PF6_EXT_SELINUX_SLIB), $(PF6_EXT_MAN_EXTRA_MATCHES))
PF6_EXT_MAN_EXTRA_TARGETS:=$(filter-out $(PF6_EXT_SELINUX_SLIB), $(PF6_EXT_MAN_EXTRA_TARGETS))
PF6_EXT_MAN_EXTRA_MATCHES:=$(filter-out $(PFX_EXT_SELINUX_SLIB), $(PF6_EXT_MAN_EXTRA_MATCHES))
PF6_EXT_MAN_EXTRA_TARGETS:=$(filter-out $(PFX_EXT_SELINUX_SLIB), $(PF6_EXT_MAN_EXTRA_TARGETS))

PFX_EXT_MAN_EXTRA_MATCHES:=$(filter-out $(PFX_EXT_SELINUX_SLIB), $(PFX_EXT_MAN_EXTRA_MATCHES))
PFX_EXT_MAN_EXTRA_TARGETS:=$(filter-out $(PFX_EXT_SELINUX_SLIB), $(PFX_EXT_MAN_EXTRA_TARGETS))
endif

# extra man pages requires this (really _A_ll)
PFA4_EXT_MAN_EXTRA_MATCHES:=$(PF_EXT_MAN_EXTRA_MATCHES) $(PFX_EXT_MAN_EXTRA_MATCHES)
PFA4_EXT_MAN_EXTRA_TARGETS:=$(PF_EXT_MAN_EXTRA_TARGETS) $(PFX_EXT_MAN_EXTRA_TARGETS)
PFA6_EXT_MAN_EXTRA_MATCHES:=$(PF6_EXT_MAN_EXTRA_MATCHES) $(PFX_EXT_MAN_EXTRA_MATCHES)
PFA6_EXT_MAN_EXTRA_TARGETS:=$(PF6_EXT_MAN_EXTRA_TARGETS) $(PFX_EXT_MAN_EXTRA_TARGETS)


allman:
	@echo 'ALL_SLIB (IPv4):' $(PF_EXT_ALL_SLIB)
	@echo 'ALL_SLIB (IPv6):' $(PF6_EXT_ALL_SLIB)
	@echo 'ALL_SLIB (both):' $(PFX_EXT_ALL_SLIB)
	@echo 'ALL_MATCH (IPv4):' $(PF_EXT_MAN_ALL_MATCHES)
	@echo 'ALL_MATCH (IPv6):' $(PF6_EXT_MAN_ALL_MATCHES)
	@echo 'ALL_MATCH (both):' $(PFX_EXT_MAN_ALL_MATCHES)
	@echo 'ALL_TARGET (IPv4):' $(PF_EXT_MAN_ALL_TARGETS)
	@echo 'ALL_TARGET (IPv6):' $(PF6_EXT_MAN_ALL_TARGETS)
	@echo 'ALL_TARGET (both):' $(PFX_EXT_MAN_ALL_TARGETS)

PF_EXT_SLIB+=$(PF_EXT_SLIB_OPTS)
PF6_EXT_SLIB+=$(PF6_EXT_SLIB_OPTS)
PFX_EXT_SLIB+=$(PFX_EXT_SLIB_OPTS)

OPTIONALS+=$(patsubst %,XT:%,$(PFX_EXT_SLIB_OPTS))
OPTIONALS+=$(patsubst %,IPv4:%,$(PF_EXT_SLIB_OPTS))
OPTIONALS+=$(patsubst %,IPv6:%,$(PF6_EXT_SLIB_OPTS))

ifndef NO_SHARED_LIBS
SHARED_LIBS+=$(foreach T,$(PF_EXT_SLIB),extensions/libipt_$(T).so)
SHARED_SE_LIBS+=$(foreach T,$(PF_EXT_SE_SLIB),extensions/libipt_$(T).so)
EXTRA_INSTALLS+=$(foreach T, $(PF_EXT_SLIB), $(DEST_IPT_LIBDIR)/libipt_$(T).so)
EXTRA_INSTALLS+=$(foreach T, $(PF_EXT_SE_SLIB), $(DEST_IPT_LIBDIR)/libipt_$(T).so)

ifeq ($(DO_IPV6), 1)
SHARED_LIBS+=$(foreach T,$(PF6_EXT_SLIB),extensions/libip6t_$(T).so)
SHARED_SE_LIBS+=$(foreach T,$(PF6_EXT_SE_SLIB),extensions/libip6t_$(T).so)
EXTRA_INSTALLS+=$(foreach T, $(PF6_EXT_SLIB), $(DEST_IPT_LIBDIR)/libip6t_$(T).so)
EXTRA_INSTALLS+=$(foreach T, $(PF6_EXT_SE_SLIB), $(DEST_IPT_LIBDIR)/libip6t_$(T).so)
endif

SHARED_LIBS+=$(foreach T,$(PFX_EXT_SLIB),extensions/libxt_$(T).so)
SHARED_SE_LIBS+=$(foreach T,$(PFX_EXT_SE_SLIB),extensions/libxt_$(T).so)
EXTRA_INSTALLS+=$(foreach T, $(PFX_EXT_SLIB), $(DEST_IPT_LIBDIR)/libxt_$(T).so)
EXTRA_INSTALLS+=$(foreach T, $(PFX_EXT_SE_SLIB), $(DEST_IPT_LIBDIR)/libxt_$(T).so)

else 	# NO_SHARED_LIBS
EXT_OBJS+=$(foreach T,$(PF_EXT_SLIB),extensions/libipt_$(T).o)
EXT_OBJS+=$(foreach T,$(PF_EXT_SE_SLIB),extensions/libipt_$(T).o)
EXT_OBJS+=$(foreach T,$(PFX_EXT_SLIB),extensions/libxt_$(T).o)
EXT_OBJS+=$(foreach T,$(PFX_EXT_SE_SLIB),extensions/libxt_$(T).o)
EXT_FUNC+=$(foreach T,$(PF_EXT_SLIB),ipt_$(T))
EXT_FUNC+=$(foreach T,$(PF_EXT_SE_SLIB),ipt_$(T))
EXT_FUNC+=$(foreach T,$(PFX_EXT_SLIB),xt_$(T))
EXT_FUNC+=$(foreach T,$(PFX_EXT_SE_SLIB),xt_$(T))
EXT_OBJS+= extensions/initext.o
ifeq ($(DO_IPV6), 1)
EXT6_OBJS+=$(foreach T,$(PF6_EXT_SLIB),extensions/libip6t_$(T).o)
EXT6_OBJS+=$(foreach T,$(PF6_EXT_SE_SLIB),extensions/libip6t_$(T).o)
EXT6_OBJS+=$(foreach T,$(PFX_EXT_SLIB),extensions/libxt_$(T).o)
EXT6_FUNC+=$(foreach T,$(PF6_EXT_SLIB),ip6t_$(T))
EXT6_FUNC+=$(foreach T,$(PF6_EXT_SE_SLIB),ip6t_$(T))
EXT6_FUNC+=$(foreach T,$(PFX_EXT_SLIB),xt_$(T))
EXT6_OBJS+=$(foreach T,$(PFX_EXT_SE_SLIB),extensions/libxt_$(T).o)
EXT6_FUNC+=$(foreach T,$(PFX_EXT_SE_SLIB),xt_$(T))
EXT6_OBJS+= extensions/initext6.o
endif	# DO_IPV6
endif	# NO_SHARED_LIBS

ifndef TOPLEVEL_INCLUDED
local:
	cd .. && $(MAKE) $(SHARED_LIBS) $(SHARED_SE_LIBS)
endif

ifdef NO_SHARED_LIBS
extensions/libext.a: $(EXT_OBJS)
	rm -f $@; ar crv $@ $(EXT_OBJS)

extensions/libext6.a: $(EXT6_OBJS)
	rm -f $@; ar crv $@ $(EXT6_OBJS)

extensions/initext.o: extensions/initext.c
extensions/initext6.o: extensions/initext6.c

extensions/initext.c: extensions/Makefile
	echo "" > $@
	for i in $(EXT_FUNC); do \
		echo "extern void $${i}_init(void);" >> $@; \
	done
	echo "void init_extensions(void) {" >> $@
	for i in $(EXT_FUNC); do \
		echo "	$${i}_init();" >> $@; \
	done
	echo "}" >> $@

extensions/initext6.c: extensions/Makefile
	echo "" > $@
	for i in $(EXT6_FUNC); do \
		echo "extern void $${i}_init(void);" >> $@; \
	done
	echo "void init_extensions(void) {" >> $@
	for i in $(EXT6_FUNC); do \
		echo "	$${i}_init();" >> $@; \
	done
	echo "}" >> $@

extensions/lib%.o: extensions/lib%.c
	$(CC) $(CFLAGS) -D_INIT=$*_init -c -o $@ $<

endif
 
EXTRAS += extensions/libipt_targets.man
extensions/libipt_targets.man: $(patsubst %,extensions/libipt_%.man,$(PF_EXT_MAN_ALL_TARGETS)) $(patsubst %,extensions/libxt_%.man,$(PFX_EXT_MAN_ALL_TARGETS))
	@for ext in `echo $(PF_EXT_MAN_TARGETS) $(PFX_EXT_MAN_TARGETS) | sed 's/ /\n/g' | sort`; do \
	    echo ".SS $$ext" ;\
	    if test -f extensions/libipt_$$ext.man; then \
		cat extensions/libipt_$$ext.man ;\
	    else \
		cat extensions/libxt_$$ext.man ;\
	    fi; \
	done >extensions/libipt_targets.man
	@if [ -n "$(PFA4_EXT_MAN_EXTRA_TARGETS)" ]; then \
	    extra="$(PFA4_EXT_MAN_EXTRA_TARGETS)" ;\
	    for ext in `echo $${extra:-""} | sed 's/ /\n/g' | sort`; do \
		echo ".SS $$ext (not supported, see Patch-O-Matic)" ;\
		if test -f extensions/libipt_$$ext.man; then \
		    cat extensions/libipt_$$ext.man ;\
		else \
		    cat extensions/libxt_$$ext.man ;\
		fi; \
	    done ;\
       	fi >>extensions/libipt_targets.man

EXTRAS += extensions/libipt_matches.man
extensions/libipt_matches.man: $(patsubst %,extensions/libipt_%.man,$(PF_EXT_MAN_ALL_MATCHES)) $(patsubst %,extensions/libxt_%.man,$(PFX_EXT_MAN_ALL_MATCHES))
	@for ext in `echo $(PF_EXT_MAN_MATCHES) $(PFX_EXT_MAN_MATCHES) | sed 's/ /\n/g' | sort`; do \
	    echo ".SS $$ext" ;\
	    if test -f extensions/libipt_$$ext.man; then \
		cat extensions/libipt_$$ext.man ;\
	    else \
		cat extensions/libxt_$$ext.man ;\
	    fi; \
	done >extensions/libipt_matches.man
	@if [ -n "$(PFA4_EXT_MAN_EXTRA_MATCHES)" ]; then \
	    extra="$(PFA4_EXT_MAN_EXTRA_MATCHES)" ;\
	    for ext in `echo $${extra:-""} | sed 's/ /\n/g' | sort`; do \
		echo ".SS $$ext (not supported, see Patch-O-Matic)" ;\
		if test -f extensions/libipt_$$ext.man; then \
		    cat extensions/libipt_$$ext.man ;\
		else \
		    cat extensions/libxt_$$ext.man ;\
		fi; \
	    done ;\
       	fi >>extensions/libipt_matches.man

EXTRAS += extensions/libip6t_targets.man
extensions/libip6t_targets.man: $(patsubst %, extensions/libip6t_%.man, $(PF6_EXT_MAN_ALL_TARGETS)) $(patsubst %,extensions/libxt_%.man,$(PFX_EXT_MAN_ALL_TARGETS))
	@for ext in `echo $(PF6_EXT_MAN_TARGETS) $(PFX_EXT_MAN_TARGETS) | sed 's/ /\n/g' | sort`; do \
	    echo ".SS $$ext" ;\
	    if test -f extensions/libip6t_$$ext.man; then \
		cat extensions/libip6t_$$ext.man ;\
	    else \
		cat extensions/libxt_$$ext.man ;\
	    fi; \
	done >extensions/libip6t_targets.man
	@if [ -n "$(PFA6_EXT_MAN_EXTRA_TARGETS)" ]; then \
	    extra="$(PFA6_EXT_MAN_EXTRA_TARGETS)" ;\
	    for ext in `echo $${extra:-""} | sed 's/ /\n/g' | sort`; do \
		echo ".SS $$ext (not supported, see Patch-O-Matic)" ;\
		if test -f extensions/libip6t_$$ext.man; then \
		    cat extensions/libip6t_$$ext.man ;\
		else \
		    cat extensions/libxt_$$ext.man ;\
		fi; \
	    done ;\
       	fi >>extensions/libip6t_targets.man

EXTRAS += extensions/libip6t_matches.man
extensions/libip6t_matches.man: $(patsubst %, extensions/libip6t_%.man, $(PF6_EXT_MAN_ALL_MATCHES)) $(patsubst %,extensions/libxt_%.man,$(PFX_EXT_MAN_ALL_MATCHES))
	@for ext in `echo $(PF6_EXT_MAN_MATCHES) $(PFX_EXT_MAN_MATCHES) | sed 's/ /\n/g' | sort`; do \
	    echo ".SS $$ext" ;\
	    if test -f extensions/libip6t_$$ext.man; then \
		cat extensions/libip6t_$$ext.man ;\
	    else \
		cat extensions/libxt_$$ext.man ;\
	    fi; \
	done >extensions/libip6t_matches.man
	@if [ -n "$(PFA6_EXT_MAN_EXTRA_MATCHES)" ]; then \
	    extra="$(PFA6_EXT_MAN_EXTRA_MATCHES)" ;\
	    for ext in `echo $${extra:-""} | sed 's/ /\n/g' | sort`; do \
		echo ".SS $$ext (not supported, see Patch-O-Matic)" ;\
		if test -f extensions/libip6t_$$ext.man; then \
		    cat extensions/libip6t_$$ext.man ;\
		else \
		    cat extensions/libxt_$$ext.man ;\
		fi; \
	    done ;\
       	fi >>extensions/libip6t_matches.man

$(DEST_IPT_LIBDIR)/libipt_%.so: extensions/libipt_%.so
	@[ -d $(DEST_IPT_LIBDIR)/ ] || mkdir -p $(DEST_IPT_LIBDIR)/
	cp $< $@

$(DEST_IPT_LIBDIR)/libip6t_%.so: extensions/libip6t_%.so
	@[ -d $(DEST_IPT_LIBDIR)/ ] || mkdir -p $(DEST_IPT_LIBDIR)/
	cp $< $@

$(DEST_IPT_LIBDIR)/libxt_%.so: extensions/libxt_%.so
	@[ -d $(DEST_IPT_LIBDIR)/ ] || mkdir -p $(DEST_IPT_LIBDIR)/
	cp $< $@
