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libwebsockets/minimal-examples/api-tests/api-test-dhcpc/CMakeLists.txt
Andy Green d0fa39af7f lws_system: dhcpclient
Generic lws_system IPv4 DHCP client

 - netif and route control via lib/plat apis
 - linux plat pieces implemented
 - Uses raw ip socket for UDP broadcast and rx
 - security-aware
 - usual stuff plus up to 4 x dns server

If it's enabled for build, it holds the system
state at DHCP until at least one registered interface
has acquired a set of IP / mask / router / DNS server

It uses PF_PACKET which is Linux-only atm.  But those
areas are isolated into plat code.

TODOs

 - lease timing and reacquire
 - plat pieces for other than Linux
2019-10-12 12:41:14 +01:00

76 lines
1.9 KiB
CMake

cmake_minimum_required(VERSION 2.8)
include(CheckCSourceCompiles)
set(SAMP lws-api-test-dhcpc)
set(SRCS main.c)
# If we are being built as part of lws, confirm current build config supports
# reqconfig, else skip building ourselves.
#
# If we are being built externally, confirm installed lws was configured to
# support reqconfig, else error out with a helpful message about the problem.
#
MACRO(require_lws_config reqconfig _val result)
if (DEFINED ${reqconfig})
if (${reqconfig})
set (rq 1)
else()
set (rq 0)
endif()
else()
set(rq 0)
endif()
if (${_val} EQUAL ${rq})
set(SAME 1)
else()
set(SAME 0)
endif()
if (LWS_WITH_MINIMAL_EXAMPLES AND NOT ${SAME})
if (${_val})
message("${SAMP}: skipping as lws being built without ${reqconfig}")
else()
message("${SAMP}: skipping as lws built with ${reqconfig}")
endif()
set(${result} 0)
else()
if (LWS_WITH_MINIMAL_EXAMPLES)
set(MET ${SAME})
else()
CHECK_C_SOURCE_COMPILES("#include <libwebsockets.h>\nint main(void) {\n#if defined(${reqconfig})\n return 0;\n#else\n fail;\n#endif\n return 0;\n}\n" HAS_${reqconfig})
if (NOT DEFINED HAS_${reqconfig} OR NOT HAS_${reqconfig})
set(HAS_${reqconfig} 0)
else()
set(HAS_${reqconfig} 1)
endif()
if ((HAS_${reqconfig} AND ${_val}) OR (NOT HAS_${reqconfig} AND NOT ${_val}))
set(MET 1)
else()
set(MET 0)
endif()
endif()
if (NOT MET)
if (${_val})
message(FATAL_ERROR "This project requires lws must have been configured with ${reqconfig}")
else()
message(FATAL_ERROR "Lws configuration of ${reqconfig} is incompatible with this project")
endif()
endif()
endif()
ENDMACRO()
set(requirements 1)
require_lws_config(LWS_WITH_SYS_DHCP_CLIENT 1 requirements)
if (requirements)
add_executable(${SAMP} ${SRCS})
if (websockets_shared)
target_link_libraries(${SAMP} websockets_shared)
add_dependencies(${SAMP} websockets_shared)
else()
target_link_libraries(${SAMP} websockets)
endif()
endif()