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