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cmake_minimum_required(VERSION 2.6)
PROJECT(firewall3 C)
ADD_DEFINITIONS(-Os -Wall -Werror --std=gnu99 -g3 -Wmissing-declarations)
SET(sed_match "^[[:space:]]*__ipt_module(\\(.*\\)).*")
SET(sed_replace "-Wl,--undefined=libxt_\\1_init -Wl,--undefined=libipt_\\1_init -Wl,--undefined=libip6t_\\1_init")
EXECUTE_PROCESS(COMMAND sed -n -e "s/${sed_match}/${sed_replace}/; T n; H; :n; \${ x; s/^\\n//; s/\\n/ /gp }" ${CMAKE_SOURCE_DIR}/iptables.h
OUTPUT_VARIABLE ext_syms OUTPUT_STRIP_TRAILING_WHITESPACE)
SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--unresolved-symbols=ignore-all ${ext_syms}")
IF (EXISTS "${CMAKE_SOURCE_DIR}/libext.a")
ADD_LIBRARY(ext STATIC IMPORTED)
SET_PROPERTY(TARGET ext PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libext.a)
LIST(APPEND ext_libs ext)
ENDIF()
IF (EXISTS "${CMAKE_SOURCE_DIR}/libext4.a")
ADD_LIBRARY(ext4 STATIC IMPORTED)
SET_PROPERTY(TARGET ext4 PROPERTY IMPORTED_LOCATION "${CMAKE_SOURCE_DIR}/libext4.a")
LIST(APPEND ext_libs ext4)
ENDIF()
IF (EXISTS "${CMAKE_SOURCE_DIR}/libext6.a")
ADD_LIBRARY(ext6 STATIC IMPORTED)
SET_PROPERTY(TARGET ext6 PROPERTY IMPORTED_LOCATION "${CMAKE_SOURCE_DIR}/libext6.a")
LIST(APPEND ext_libs ext6)
ENDIF()
ADD_EXECUTABLE(firewall3 main.c options.c defaults.c zones.c forwards.c rules.c redirects.c utils.c ubus.c ipsets.c includes.c iptables.c)
TARGET_LINK_LIBRARIES(firewall3 uci ubox ubus ip4tc ip6tc xtables m ${ext_libs})
SET(CMAKE_INSTALL_PREFIX /usr)
INSTALL(TARGETS firewall3 RUNTIME DESTINATION sbin)
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