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我試圖編譯具有使用ActiveMQ的功能(因此庫)的一個項目,但我得到以下錯誤:未定義的參考符號「sem_close @@ GLIBC_2.2.5」
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/libapr-1.a(proc_mutex.o): undefined reference to symbol '[email protected]@GLIBC_2.2.5'
/lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
我必須說代碼方面,我毫無疑問,它工作正常。在我格式化計算機後,我開始得到這個錯誤,其中ActiveMQ所需的一些庫可能已經消失。當然,libapr
就是其中之一。
但是,我的電腦上安裝了這個庫。當我找到它,我可以看到它作爲w:
/usr/lib/libapr-1.a
/usr/lib/x86_64-linux-gnu/libapr-1.a
/usr/local/apr/lib/libapr-1.a
所以它在那裏。而且在我的CMakeLists.txt文件中,我將其稱爲:
set(ACTIVEMQ_CPP "/usr/local/lib/libactivemq-cpp.so")
set(ACTIVEMQ_INCLUDE_DIR "/usr/local/include/activemq-cpp-3.8.4/")
set(LIBAPR_LIB "/usr/lib/libapr-1.a")
set(LIBAPR_INCLUDE_DIR "/usr/include/apr-1")
所以我不知道是什麼導致了錯誤。我看到了可能的任何地方,仍然沒有答案。
有什麼想法?
PS:我的完整CMakeLists.txt
: cmake_minimum_required(版本2.8.3) 項目(some_project 包括(FindProtobuf)
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)
set_source_files_properties(${PROTO_SRC} ${PROTO_HEADER} PROPERTIES GENERATED TRUE)
# check c++11/c++0x
include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
if(COMPILER_SUPPORTS_CXX11)
set(CMAKE_CXX_FLAGS "-std=c++11")
elseif(COMPILER_SUPPORTS_CXX0X)
set(CMAKE_CXX_FLAGS "-std=c++0x")
else()
message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
endif()
set(PROTO_SRC ${PROJECT_SOURCE_DIR}/src-gen)
set(PROTO_HEADER ${PROJECT_SOURCE_DIR}/src-gen)
find_package(catkin REQUIRED COMPONENTS
cv_bridge
roscpp
sensor_msgs
std_msgs
image_transport
)
find_package(OpenCV REQUIRED)
find_package(Protobuf REQUIRED)
catkin_package(
INCLUDE_DIRS include
LIBRARIES uwsim_imgproc filters
CATKIN_DEPENDS cv_bridge roscpp sensor_msgs std_msgs
# DEPENDS system_lib
)
set(ACTIVEMQ_CPP "/usr/local/lib/libactivemq-cpp.so")
set(ACTIVEMQ_INCLUDE_DIR "/usr/local/include/activemq-cpp-3.8.4/")
set(LIBAPR_LIB "/usr/lib/libapr-1.a")
set(LIBAPR_INCLUDE_DIR "/usr/include/apr-1")
PROTOBUF_GENERATE_CPP(PROTO_SRCS PROTO_HDRS proto/VisionData.proto)
include_directories(
${catkin_INCLUDE_DIRS}
${OpenCV_INCLUDE_DIRS}
${PROTOBUF_INCLUDE_DIRS}
${CMAKE_CURRENT_BINARY_DIR}
include
${ACTIVEMQ_INCLUDE_DIR}
${LIBAPR_INCLUDE_DIR}
)
link_directories(
${OpenCV_LINK_DIRS}
)
add_library(filters
src/HorizonDetector.cpp
src/ActivemqSender.cpp
)
add_executable(cameraSubscriber src/main.cpp ${PROTO_SRCS} ${PROTO_HDRS})
add_dependencies(cameraSubscriber ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})
target_link_libraries(filters
${OpenCV_LIBRARIES}
)
target_link_libraries(cameraSubscriber
${catkin_LIBRARIES}
${OpenCV_LIBRARIES}
${PROTOBUF_LIBRARIES}
${ACTIVEMQCPP_LIBRARIES}
filters
${ACTIVEMQ_CPP}
${LIBAPR_LIB}
)
'從命令行丟失的DSO很容易被google搜索到,意味着鏈接庫的順序*不正確*。你的'libapr-1.a'庫應該在**'-lpthread'之前**鏈接列表中。 – Tsyvarev
我的'CMakeLists.txt'中沒有'-lpthread',因此我不知道這是什麼順序。也許我可以添加完整的'CMakeLists.txt'。 –