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      1 # -*- Makefile -*-
      2 
      3 top_builddir := @top_builddir@
      4 builddir     := @builddir@
      5 top_srcdir  := @top_srcdir@
      6 srcdir      := @srcdir@
      7 ksourcedir  := @ksourcedir@
      8 prefix      := @prefix@
      9 exec_prefix := @exec_prefix@
     10 libdir      := @libdir@
     11 libexecdir  := @libexecdir@
     12 xtlibdir    := @xtlibdir@
     13 
     14 CC             := @CC@
     15 CCLD           := ${CC}
     16 CFLAGS         := @CFLAGS@
     17 CPPFLAGS       := @CPPFLAGS@
     18 LDFLAGS        := @LDFLAGS@
     19 regular_CFLAGS := @regular_CFLAGS@
     20 regular_CPPFLAGS := @regular_CPPFLAGS@
     21 kinclude_CPPFLAGS := @kinclude_CPPFLAGS@
     22 
     23 AM_CFLAGS      := ${regular_CFLAGS}
     24 AM_CPPFLAGS     = ${regular_CPPFLAGS} -I${top_builddir}/include -I${top_srcdir}/include ${kinclude_CPPFLAGS}
     25 AM_DEPFLAGS     = -Wp,-MMD,$(@D)/.$(@F).d,-MT,$@
     26 
     27 ifeq (${V},)
     28 AM_LIBTOOL_SILENT = --silent
     29 AM_VERBOSE_CC     = @echo "  CC      " $@;
     30 AM_VERBOSE_CCLD   = @echo "  CCLD    " $@;
     31 AM_VERBOSE_CXX    = @echo "  CXX     " $@;
     32 AM_VERBOSE_CXXLD  = @echo "  CXXLD   " $@;
     33 AM_VERBOSE_AR     = @echo "  AR      " $@;
     34 AM_VERBOSE_GEN    = @echo "  GEN     " $@;
     35 endif
     36 
     37 #
     38 #	Wildcard module list
     39 #
     40 pfx_build_mod := $(patsubst ${srcdir}/libxt_%.c,%,$(wildcard ${srcdir}/libxt_*.c))
     41 @ENABLE_IPV4_TRUE@ pf4_build_mod := $(patsubst ${srcdir}/libipt_%.c,%,$(wildcard ${srcdir}/libipt_*.c))
     42 @ENABLE_IPV6_TRUE@ pf6_build_mod := $(patsubst ${srcdir}/libip6t_%.c,%,$(wildcard ${srcdir}/libip6t_*.c))
     43 pfx_build_mod := $(filter-out @blacklist_modules@,${pfx_build_mod})
     44 pf4_build_mod := $(filter-out @blacklist_modules@,${pf4_build_mod})
     45 pf6_build_mod := $(filter-out @blacklist_modules@,${pf6_build_mod})
     46 pfx_objs      := $(patsubst %,libxt_%.o,${pfx_build_mod})
     47 pf4_objs      := $(patsubst %,libipt_%.o,${pf4_build_mod})
     48 pf6_objs      := $(patsubst %,libip6t_%.o,${pf6_build_mod})
     49 pfx_solibs    := $(patsubst %,libxt_%.so,${pfx_build_mod})
     50 pf4_solibs    := $(patsubst %,libipt_%.so,${pf4_build_mod})
     51 pf6_solibs    := $(patsubst %,libip6t_%.so,${pf6_build_mod})
     52 
     53 
     54 #
     55 # Building blocks
     56 #
     57 targets := libext.a libext4.a libext6.a \
     58            matches4.man matches6.man \
     59            targets4.man targets6.man
     60 targets_install :=
     61 @ENABLE_STATIC_TRUE@ libext_objs := ${pfx_objs}
     62 @ENABLE_STATIC_TRUE@ libext4_objs := ${pf4_objs}
     63 @ENABLE_STATIC_TRUE@ libext6_objs := ${pf6_objs}
     64 @ENABLE_STATIC_FALSE@ targets += ${pfx_solibs} ${pf4_solibs} ${pf6_solibs}
     65 @ENABLE_STATIC_FALSE@ targets_install += ${pfx_solibs} ${pf4_solibs} ${pf6_solibs}
     66 
     67 .SECONDARY:
     68 
     69 .PHONY: all install clean distclean FORCE
     70 
     71 all: ${targets}
     72 
     73 install: ${targets_install}
     74 	@mkdir -p "${DESTDIR}${xtlibdir}";
     75 	if test -n "${targets_install}"; then install -pm0755 $^ "${DESTDIR}${xtlibdir}/"; fi;
     76 
     77 clean:
     78 	rm -f *.o *.oo *.so *.a {matches,targets}[46].man initext.c initext4.c initext6.c;
     79 
     80 distclean: clean
     81 	rm -f .*.d .*.dd;
     82 
     83 init%.o: init%.c
     84 	${AM_VERBOSE_CC} ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -D_INIT=$*_init ${CFLAGS} -o $@ -c $<;
     85 
     86 -include .*.d
     87 
     88 
     89 #
     90 #	Shared libraries
     91 #
     92 lib%.so: lib%.oo
     93 	${AM_VERBOSE_CCLD} ${CCLD} ${AM_LDFLAGS} -shared ${LDFLAGS} -o $@ $<;
     94 
     95 lib%.oo: ${srcdir}/lib%.c
     96 	${AM_VERBOSE_CC} ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -D_INIT=lib$*_init -DPIC -fPIC ${CFLAGS} -o $@ -c $<;
     97 
     98 
     99 #
    100 #	Static bits
    101 #
    102 #	If static building is disabled, libext*.a will still be generated,
    103 #	but will be empty. This is good since we can do with less case
    104 #	handling code in the Makefiles.
    105 #
    106 lib%.o: ${srcdir}/lib%.c
    107 	${AM_VERBOSE_CC} ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -DNO_SHARED_LIBS=1 -D_INIT=lib$*_init ${CFLAGS} -o $@ -c $<;
    108 
    109 libext.a: initext.o ${libext_objs}
    110 	${AM_VERBOSE_AR} ${AR} crs $@ $^;
    111 
    112 libext4.a: initext4.o ${libext4_objs}
    113 	${AM_VERBOSE_AR} ${AR} crs $@ $^;
    114 
    115 libext6.a: initext6.o ${libext6_objs}
    116 	${AM_VERBOSE_AR} ${AR} crs $@ $^;
    117 
    118 initext_func  := $(addprefix xt_,${pfx_build_mod})
    119 initext4_func := $(addprefix ipt_,${pf4_build_mod})
    120 initext6_func := $(addprefix ip6t_,${pf6_build_mod})
    121 
    122 .initext.dd: FORCE
    123 	@echo "${initext_func}" >$@.tmp; \
    124 	cmp -s $@ $@.tmp || mv $@.tmp $@; \
    125 	rm -f $@.tmp;
    126 
    127 .initext4.dd: FORCE
    128 	@echo "${initext4_func}" >$@.tmp; \
    129 	cmp -s $@ $@.tmp || mv $@.tmp $@; \
    130 	rm -f $@.tmp;
    131 
    132 .initext6.dd: FORCE
    133 	@echo "${initext6_func}" >$@.tmp; \
    134 	cmp -s $@ $@.tmp || mv $@.tmp $@; \
    135 	rm -f $@.tmp;
    136 
    137 initext.c: .initext.dd
    138 	${AM_VERBOSE_GEN}
    139 	@( \
    140 	echo "" >$@; \
    141 	for i in ${initext_func}; do \
    142 		echo "extern void lib$${i}_init(void);" >>$@; \
    143 	done; \
    144 	echo "void init_extensions(void);" >>$@; \
    145 	echo "void init_extensions(void)" >>$@; \
    146 	echo "{" >>$@; \
    147 	for i in ${initext_func}; do \
    148 		echo  " ""lib$${i}_init();" >>$@; \
    149 	done; \
    150 	echo "}" >>$@; \
    151 	);
    152 
    153 initext4.c: .initext4.dd
    154 	${AM_VERBOSE_GEN}
    155 	@( \
    156 	echo "" >$@; \
    157 	for i in ${initext4_func}; do \
    158 		echo "extern void lib$${i}_init(void);" >>$@; \
    159 	done; \
    160 	echo "void init_extensions4(void);" >>$@; \
    161 	echo "void init_extensions4(void)" >>$@; \
    162 	echo "{" >>$@; \
    163 	for i in ${initext4_func}; do \
    164 		echo  " ""lib$${i}_init();" >>$@; \
    165 	done; \
    166 	echo "}" >>$@; \
    167 	);
    168 
    169 initext6.c: .initext6.dd
    170 	${AM_VERBOSE_GEN}
    171 	@( \
    172 	echo "" >$@; \
    173 	for i in ${initext6_func}; do \
    174 		echo "extern void lib$${i}_init(void);" >>$@; \
    175 	done; \
    176 	echo "void init_extensions6(void);" >>$@; \
    177 	echo "void init_extensions6(void)" >>$@; \
    178 	echo "{" >>$@; \
    179 	for i in ${initext6_func}; do \
    180 		echo " ""lib$${i}_init();" >>$@; \
    181 	done; \
    182 	echo "}" >>$@; \
    183 	);
    184 
    185 #
    186 #	Manual pages
    187 #
    188 ex_matches = $(sort $(shell echo $(1) | LC_ALL=POSIX grep -Eo '\b[[:lower:][:digit:]_]+\b'))
    189 ex_targets = $(sort $(shell echo $(1) | LC_ALL=POSIX grep -Eo '\b[[:upper:][:digit:]_]+\b'))
    190 man_run    = \
    191 	${AM_VERBOSE_GEN} \
    192 	for ext in $(1); do \
    193 		f="${srcdir}/libxt_$$ext.man"; \
    194 		cf="${srcdir}/libxt_$$ext.c"; \
    195 		if [ -f "$$f" ] && grep -Eq "$(3)|NFPROTO_UNSPEC" "$$cf"; then \
    196 			echo -e "\t+ $$f" >&2; \
    197 			echo ".SS $$ext"; \
    198 			cat "$$f" || exit $$?; \
    199 			continue; \
    200 		fi; \
    201 		f="${srcdir}/lib$(2)t_$$ext.man"; \
    202 		if [ -f "$$f" ]; then \
    203 			echo -e "\t+ $$f" >&2; \
    204 			echo ".SS $$ext"; \
    205 			cat "$$f" || exit $$?; \
    206 			continue; \
    207 		fi; \
    208 	done >$@;
    209 
    210 matches4.man: .initext.dd .initext4.dd $(wildcard ${srcdir}/lib*.man)
    211 	$(call man_run,$(call ex_matches,${pfx_build_mod} ${pf4_build_mod}),ip,NFPROTO_IPV4)
    212 
    213 matches6.man: .initext.dd .initext6.dd $(wildcard ${srcdir}/lib*.man)
    214 	$(call man_run,$(call ex_matches,${pfx_build_mod} ${pf6_build_mod}),ip6,NFPROTO_IPV6)
    215 
    216 targets4.man: .initext.dd .initext4.dd $(wildcard ${srcdir}/lib*.man)
    217 	$(call man_run,$(call ex_targets,${pfx_build_mod} ${pf4_build_mod}),ip,NFPROTO_IPV4)
    218 
    219 targets6.man: .initext.dd .initext6.dd $(wildcard ${srcdir}/lib*.man)
    220 	$(call man_run,$(call ex_targets,${pfx_build_mod} ${pf6_build_mod}),ip6,NFPROTO_IPV6)
    221