WebRTC가 정의되지 않은 참조

내 프로젝트에서 사용하기 위해 cmake를 사용하여 WebRTC 예제에서 피어 연결 클라이언트를 구축하려고합니다.WebRTC가 정의되지 않은 참조

나는 모든 WebRTC에 라이브러리를 포함 시켰 등을 구축 할 수 있지만, 필자는 항상 동일한 문제가 점점 :

CMakeFiles/webrtcbridge_node.dir/src/webrtcbridge_node.cc.o:(.rodata._ZTI18CustomSocketServer[_ZTI18CustomSocketServer]+0x10): undefined reference to `typeinfo for rtc::PhysicalSocketServer' 
CMakeFiles/webrtcbridge_node.dir/src/conductor.cc.o: In function `Conductor::OnMessageFromPeer(int, std::string const&)': 
conductor.cc:(.text+0x294d): undefined reference to `rtc::GetStringFromJsonObject(Json::Value const&, std::string const&, std::string*)' 
conductor.cc:(.text+0x2aed): undefined reference to `rtc::GetStringFromJsonObject(Json::Value const&, std::string const&, std::string*)' 
conductor.cc:(.text+0x2c01): undefined reference to `webrtc::CreateSessionDescription(std::string const&, std::string const&, webrtc::SdpParseError*)' 
conductor.cc:(.text+0x2f46): undefined reference to `rtc::GetStringFromJsonObject(Json::Value const&, std::string const&, std::string*)' 
conductor.cc:(.text+0x2fa7): undefined reference to `rtc::GetIntFromJsonObject(Json::Value const&, std::string const&, int*)' 
conductor.cc:(.text+0x3004): undefined reference to `rtc::GetStringFromJsonObject(Json::Value const&, std::string const&, std::string*)' 
conductor.cc:(.text+0x3190): undefined reference to `webrtc::CreateIceCandidate(std::string const&, int, std::string const&, webrtc::SdpParseError*)' 
CMakeFiles/webrtcbridge_node.dir/src/conductor.cc.o: In function `Conductor::OnSuccess(webrtc::SessionDescriptionInterface*)': 
conductor.cc:(.text+0x53e9): undefined reference to `webrtc::CreateSessionDescription(std::string const&, std::string const&, webrtc::SdpParseError*)' 
CMakeFiles/webrtcbridge_node.dir/src/conductor.cc.o: In function `rtc::ArrayView<int, -4711l>::ArrayView<int>(int*, unsigned long)': 
conductor.cc:(.text._ZN3rtc9ArrayViewIiLln4711EEC2IiEEPT_m[_ZN3rtc9ArrayViewIiLln4711EEC5IiEEPT_m]+0xd4): undefined reference to `rtc::FatalMessage::FatalMessage(char const*, int, std::string*)' 
conductor.cc:(.text._ZN3rtc9ArrayViewIiLln4711EEC2IiEEPT_m[_ZN3rtc9ArrayViewIiLln4711EEC5IiEEPT_m]+0x15a): undefined reference to `rtc::FatalMessage::FatalMessage(char const*, int, std::string*)' 
conductor.cc:(.text._ZN3rtc9ArrayViewIiLln4711EEC2IiEEPT_m[_ZN3rtc9ArrayViewIiLln4711EEC5IiEEPT_m]+0x200): undefined reference to `rtc::FatalMessage::FatalMessage(char const*, int, std::string*)' 
CMakeFiles/webrtcbridge_node.dir/src/conductor.cc.o: In function `rtc::ArrayView<rtc::IntervalRange, -4711l>::ArrayView<rtc::IntervalRange>(rtc::IntervalRange*, unsigned long)': 
conductor.cc:(.text._ZN3rtc9ArrayViewINS_13IntervalRangeELln4711EEC2IS1_EEPT_m[_ZN3rtc9ArrayViewINS_13IntervalRangeELln4711EEC5IS1_EEPT_m]+0xd4): undefined reference to `rtc::FatalMessage::FatalMessage(char const*, int, std::string*)' 
conductor.cc:(.text._ZN3rtc9ArrayViewINS_13IntervalRangeELln4711EEC2IS1_EEPT_m[_ZN3rtc9ArrayViewINS_13IntervalRangeELln4711EEC5IS1_EEPT_m]+0x15a): undefined reference to `rtc::FatalMessage::FatalMessage(char const*, int, std::string*)' 
CMakeFiles/webrtcbridge_node.dir/src/conductor.cc.o:conductor.cc:(.text._ZN3rtc9ArrayViewINS_13IntervalRangeELln4711EEC2IS1_EEPT_m[_ZN3rtc9ArrayViewINS_13IntervalRangeELln4711EEC5IS1_EEPT_m]+0x200): more undefined references `rtc::FatalMessage::FatalMessage(char const*, int, std::string*)' 
CMakeFiles/webrtcbridge_node.dir/src/conductor.cc.o: In function `std::string* rtc::CheckEqImpl<unsigned long, unsigned long>(unsigned long const&, unsigned long const&, char const*)': 
conductor.cc:(.text._ZN3rtc11CheckEqImplImmEEPSsRKT_RKT0_PKc[_ZN3rtc11CheckEqImplImmEEPSsRKT_RKT0_PKc]+0x4b): undefined reference to `std::string* rtc::MakeCheckOpString<unsigned long, unsigned long>(unsigned long const&, unsigned long const&, char const*)' 
CMakeFiles/webrtcbridge_node.dir/src/peer_connection_client.cc.o: In function `PeerConnectionClient::Connect(std::string const&, int, std::string const&)': 
peer_connection_client.cc:(.text+0xc97): undefined reference to `rtc::SocketAddress::SetIP(std::string const&)' 
CMakeFiles/webrtcbridge_node.dir/src/peer_connection_client.cc.o:(.rodata._ZTI20PeerConnectionClient[_ZTI20PeerConnectionClient]+0x28): undefined reference to `typeinfo for rtc::MessageHandler' 
collect2: error: ld returned 1 exit status 
webrtcbridge/CMakeFiles/webrtcbridge_node.dir/build.make:205: recipe for target 'webrtcbridge/webrtcbridge_node' failed 
make[2]: *** [webrtcbridge/webrtcbridge_node] Error 1 
CMakeFiles/Makefile2:878: recipe for target 'webrtcbridge/CMakeFiles/webrtcbridge_node.dir/all' failed 
make[1]: *** [webrtcbridge/CMakeFiles/webrtcbridge_node.dir/all] Error 2 
Makefile:138: recipe for target 'all' failed 
make: *** [all] Error 2 
Invoking "make -j2 -l2" failed

를이 내 CMakeLists.txt

cmake_minimum_required(VERSION 3.3) 
project(webrtcbridge) 

add_compile_options(-std=c++11) 

#Include PkgConfig to detect GTK+ headers/library files 
find_package(PkgConfig REQUIRED) 
pkg_check_modules(GTK3 REQUIRED gtk+-3.0) 
pkg_check_modules(JSONCPP REQUIRED jsoncpp) 

include_directories(${GTK3_INCLUDE_DIRS}) 
link_directories(${GTK3_LIBRARY_DIRS}) 

set(LIBYUV_LIBRARY_DIRS "/home/carlos/webrtc/webrtc-checkout/src/out/Release/obj/third_party/libyuv") 
set(LIBYUV_INCLUDE_DIRS "/home/carlos/webrtc/webrtc-checkout/src/third_party/libyuv/include") 

set(LIBWEBRTC_INCLUDE_DIRS "/home/carlos/webrtc/webrtc-checkout/src") 
set(LIBWEBRTC_LIBRARY_DIRS "/home/carlos/webrtc/webrtc-checkout/src/out/Release/obj") 

include_directories(${LIBWEBRTC_INCLUDE_DIRS}) 
link_directories(${LIBWEBRTC_LIBRARY_DIRS}) 

include_directories(${JSONCPP_INCLUDE_DIRS}) 
link_directories(${JSONCPP_LIBRARY_DIRS}) 

include_directories(${LIBYUV_INCLUDE_DIRS}) 
link_directories(${LIBYUV_LIBRARY_DIRS}) 

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DWEBRTC_POSIX -D_GLIBCXX_USE_CXX11_ABI=0 -std=gnu++0x -pthread") 


#[[ Included Libraries 

    - LibWebRTC 
    - LibWebRTC_Common 
    - LibX11 
    - LibICE 
    - LibSM 
    - LibXext 
    - Libdl 
    - Librt 
    - LibJsoncpp 

]] 

set(LIBWEBRTC_LIBRARIES /home/carlos/webrtc/webrtc-checkout/src/out/Release/obj/webrtc/libwebrtc.a;/home/carlos/webrtc/webrtc-checkout/src/out/Release/obj/webrtc/libwebrtc_common.a;/usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libICE.so;/usr/lib/x86_64-linux-gnu/libSM.so;/usr/lib/x86_64-linux-gnu/libXext.so;dl;rt;/home/carlos/webrtc/webrtc-checkout/src/build/linux/debian_jessie_amd64-sysroot/usr/lib/libjsoncpp.a) 

file(GLOB SOURCES src/*.cc) 

add_executable(${PROJECT_NAME}_node 
    ${SOURCES} 
) 

# WebRTC Libraries 
target_link_libraries(${PROJECT_NAME}_node 
    ${LIBWEBRTC_LIBRARIES} 
) 

# GTK libraries 
target_link_libraries(${PROJECT_NAME}_node 
    ${GTK3_LIBRARIES} 
) 

# JSONCPP libraries 
target_link_libraries(${PROJECT_NAME}_node 
    ${JSONCPP_LIBRARIES} 
)

입니다 그것은 문제가 보인다 Json 라이브러리가 있지만 코드를 체크인 할 수 있으므로 이미 포함되어 있습니다.

반면 내부 json 라이브러리에는 문제가있을 수 있지만 libwebrtc.a에 포함될 예정이므로 문제가 될 수 있습니다.

감사

출처

2017-09-05 CharlieHollow

이 오히려 일부가 .a 파일을 필요 누락의 JSON 라이브러리 문제가되지 않습니다. 예를 들어, 다음 링크 오류 :

conductor.cc:(.text._ZN3rtc9ArrayViewINS_13IntervalRangeELln4711EEC2IS1_EEPT_m[_ZN3rtc9ArrayViewINS_13IntervalRangeELln4711EEC5IS1_EEPT_m]+0xd4): undefined reference to `rtc::FatalMessage::FatalMessage(char const*, int, std::string*)'

는 rtc::FatalMessage::FatalMessage를 정의하는 .a을 놓치고 나타냅니다.

rtc::FatalMessage::FatalMessage은 checks.cc으로 정의되며이 BUILD.gn 파일로 작성됩니다.

이전에는 rtc::FatalMessage::FatalMessage이 webrtc_base static library에 포함되었지만 최신 버전에서는 이름이 바뀐 것으로 보입니다. rtc::FatalMessage::FatalMessage이 포함 된 정적 라이브러리 타겟은 이제 rtc_base입니다. .a 파일에 대한 문제의

하나는 (A .so 같은) 정보가에 따라 어떤 기술을 필요가 없다는 것입니다, 그래서 될 수있는, 당신이 필요한 모든 파일을 얻을 수 있는지 확인하기 위해 링크시 당신까지 진짜 고통은 .a 파일이 많이있을 때입니다. 메인 프로젝트에서 CMake를 자유롭게 사용할 수 있다면 WebRTC 프레임 워크의 GN 빌드 시스템과 통합 할 수 있습니다. 그러면 GNOME 시스템이 올바른 종속성에 대한 링크를 처리하는 데 도움이됩니다.

출처

2017-11-07 17:33:09

WebRTC가 정의되지 않은 참조

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