/usr/src/xtables-addons-2.12/Makefile.iptrules is in xtables-addons-dkms 2.12-0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | # -*- Makefile -*-
# MANUAL
abs_top_srcdir  = /build/xtables-addons-v9q73r/xtables-addons-2.12
prefix          = /usr
exec_prefix     = ${prefix}
libexecdir      = ${prefix}/lib/x86_64-linux-gnu
xtlibdir        = /usr/lib/x86_64-linux-gnu/xtables
CC              = gcc
CCLD            = ${CC}
CFLAGS          = -g -O2 -fdebug-prefix-map=/build/xtables-addons-v9q73r/xtables-addons-2.12=. -fstack-protector-strong -Wformat -Werror=format-security
LDFLAGS         = -Wl,-z,relro
libxtables_CFLAGS = 
libxtables_LIBS   = -lxtables
AM_DEPFLAGS     = -Wp,-MMD,$(@D)/.$(@F).d,-MT,$@
AM_DEFAULT_VERBOSITY = 0
am__v_CC_0           = @echo "  CC    " $@;
am__v_CCLD_0         = @echo "  CCLD  " $@;
am__v_GEN_0          = @echo "  GEN   " $@;
am__v_SILENT_0       = @
am__v_CC_            = ${am__v_CC_${AM_DEFAULT_VERBOSITY}}
am__v_CCLD_          = ${am__v_CCLD_${AM_DEFAULT_VERBOSITY}}
am__v_GEN_           = ${am__v_GEN_${AM_DEFAULT_VERBOSITY}}
am__v_SILENT_        = ${am__v_SILENT_${AM_DEFAULT_VERBOSITY}}
AM_V_CC              = ${am__v_CC_${V}}
AM_V_CCLD            = ${am__v_CCLD_${V}}
AM_V_GEN             = ${am__v_GEN_${V}}
AM_V_silent          = ${am__v_GEN_${V}}
include ${XA_TOPSRCDIR}/mconfig
-include ${XA_TOPSRCDIR}/mconfig.*
include ${XA_SRCDIR}/Mbuild
-include ${XA_SRCDIR}/Mbuild.*
targets := $(filter-out %/,${obj-m})
subdirs_list := $(filter %/,${obj-m})
.SECONDARY:
.PHONY: all install clean
all: ${targets}
	@for i in ${subdirs_list}; do ${MAKE} -C $$i || exit $$?; done;
install: ${targets}
	@for i in ${subdirs_list}; do ${MAKE} -C $$i $@ || exit $$?; done;
	install -dm0755 "${DESTDIR}/${xtlibdir}";
	@for i in $^; do install -pm0755 $$i "${DESTDIR}/${xtlibdir}"; done;
clean:
	@for i in ${subdirs_list}; do ${MAKE} -C $$i $@ || exit $$?; done;
	rm -f *.oo *.so;
lib%.so: lib%.oo
	${AM_V_CCLD}${CCLD} ${AM_LDFLAGS} -shared ${LDFLAGS} -o $@ $< ${libxtables_LIBS} ${LDLIBS};
%.oo: ${XA_SRCDIR}/%.c
	${AM_V_CC}${CC} ${AM_DEPFLAGS} ${AM_CPPFLAGS} ${AM_CFLAGS} -DPIC -fPIC ${CPPFLAGS} ${CFLAGS} -o $@ -c $<;
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