我正在尝试使用CMake编译我的代码。但是当我执行make命令时，我收到以下错误：
[ 17%] Linking CXX shared library libglobal.so
Apple LLVM version 9.1.0 (clang-902.0.39.1)
Target: x86_64-apple-darwin17.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
"/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld" -demangle -lto_library /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libLTO.dylib -dynamic -dylib -arch x86_64 -dylib_install_name @rpath/libglobal.so -macosx_version_min 10.13.0 -o libglobal.so -L/opt/local/lib -L/Users/George/Documents/root/build/lib -lc++ -headerpad_max_install_names CMakeFiles/global.dir/RawHitPeta6.cpp.o CMakeFiles/global.dir/CorrectedHit.cpp.o CMakeFiles/global.dir/CalibrationSettings.cpp.o CMakeFiles/global.dir/Coincidence.cpp.o CMakeFiles/global.dir/AnalysisSettings.cpp.o CMakeFiles/global.dir/Plot.cpp.o CMakeFiles/global.dir/Destination.cpp.o CMakeFiles/global.dir/Crystal.cpp.o CMakeFiles/global.dir/Geometry.cpp.o CMakeFiles/global.dir/geometries/TwoModuleSetup.cpp.o CMakeFiles/global.dir/geometries/P6EvaluationBoard.cpp.o CMakeFiles/global.dir/geometries/SystemSingleLayer7.cpp.o CMakeFiles/global.dir/geometries/SystemSingleLayer8.cpp.o CMakeFiles/global.dir/geometries/SystemDualLayer.cpp.o CMakeFiles/global.dir/geometries/SystemHighResolutionDualLayer.cpp.o CMakeFiles/global.dir/geometries/SystemHighResolutionDualLayerLong.cpp.o -lc++ -lSystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/9.1.0/lib/darwin/libclang_rt.osx.a
Undefined symbols for architecture x86_64:
"TVersionCheck::TVersionCheck(int)", referenced from:
__GLOBAL__sub_I_Plot.cpp in Plot.cpp.o
__GLOBAL__sub_I_Destination.cpp in Destination.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [Analysis/global/libglobal.so] Error 1
make[1]: *** [Analysis/global/CMakeFiles/global.dir/all] Error 2
make: *** [all] Error 2
我已经找到了找不到架构x86_64的ld：符号 clang：错误：链接器命令失败，退出代码为1（使用-v查看调用）。
This is the cmake outout I get:
CMake Warning (dev):
Policy CMP0042 is not set: MACOSX_RPATH is enabled by default. Run "cmake
--help-policy CMP0042" for policy details. Use the cmake_policy command to
set the policy and suppress this warning.
MACOSX_RPATH is not specified for the following targets:
coincidencePlots
correctedHitPlots
generalPlots
global
processing
rawHitPlots
This warning is for project developers. Use -Wno-dev to suppress it.
-- Generating done
-- Build files have been written to: /Users/George/Desktop/petaAnalysis/build
我已经找到了找不到架构x86_64的ld：符号 clang：错误：链接器命令失败，退出代码为1（使用-v查看调用）。但我找不到任何有用的东西，这有帮助。
这是我得到的cmake输出：
CMake Warning (dev):
Policy CMP0042 is not set: MACOSX_RPATH is enabled by default. Run "cmake
--help-policy CMP0042" for policy details. Use the cmake_policy command to
set the policy and suppress this warning.
MACOSX_RPATH is not specified for the following targets:
coincidencePlots
correctedHitPlots
generalPlots
global
processing
countRawPlots
This warning is for project developers. Use -Wno-dev to suppress it.
-- Generating done
-- Build files have been written to: /Users/Hans/Desktop/Project/build
我试着在linux上运行代码。它似乎工作正常。我认为这是我创建的共享库之间的链接问题。
这是CMAKE文件： 文件1（在主目录中）：
cmake_minimum_required(VERSION 2.8)
project(Analysis)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${Analysis_SOURCE_DIR}/bin)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -stdlib=libc++ -lstdc++ -std=c++14 -m64 -I/Users/George/Documents/root/build/include")
#SET(CMAKE_BUILD_WITH_INSTALL_RPATH true)
#SET(CMAKE_INSTALL_RPATH "$ORIGIN/")
SET(CMAKE_SYSTEM_NAME Darwin)
# Add MacPorts
INCLUDE_DIRECTORIES(/opt/local/include)
LINK_DIRECTORIES(/opt/local/lib)
ADD_SUBDIRECTORY(Analysis)
ADD_SUBDIRECTORY(CrystalMapGenerator)
ADD_SUBDIRECTORY(CoincidenceBrowser)
ADD_SUBDIRECTORY(FunctionTests)
ADD_SUBDIRECTORY(AnalysisResultExtractor)
ADD_SUBDIRECTORY(AnalysisComparison)
ADD_SUBDIRECTORY(SDIPRawDataDebug)
ADD_SUBDIRECTORY(GateDataTimeCalibrationTester)
文件2（在子目录中）：
cmake_minimum_required(VERSION 2.8)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${Analysis_SOURCE_DIR}/bin)
if(UNIX)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -std=gnu++0x")
endif()
#set(CMAKE_BUILD_TYPE Debug)
set(CMAKE_BUILD_TYPE Release)
# Add information on ROOT libraries
INCLUDE(../FindROOT.cmake)
INCLUDE_DIRECTORIES( ${ROOTSYS}/include)
LINK_DIRECTORIES( ${ROOTSYS}/lib)
ADD_SUBDIRECTORY(processing)
ADD_SUBDIRECTORY(generalPlots)
ADD_SUBDIRECTORY(rawHitPlots)
ADD_SUBDIRECTORY(correctedHitPlots)
ADD_SUBDIRECTORY(coincidencePlots)
ADD_SUBDIRECTORY(global)
include_directories("processing")
include_directories("generalPlots")
include_directories("rawHitPlots")
include_directories("correctedHitPlots")
include_directories("coincidencePlots")
include_directories("global")
set(SOURCES
DataChain.cpp
main.cpp
)
ADD_EXECUTABLE(analysis ${SOURCES})
target_link_libraries(analysis processing generalPlots rawHitPlots correctedHitPlots coincidencePlots global ${ROOT_LIBRARIES} -lSpectrum -lMinuit)
File3（在库全局文件夹中）：
cmake_minimum_required(VERSION 2.8)
INCLUDE(../../FindROOT.cmake)
INCLUDE_DIRECTORIES( ${ROOT_INCLUDE_DIR})
LINK_DIRECTORIES( ${ROOT_LIBRARY_DIR})
ADD_LIBRARY(global SHARED
RawHitPeta6.cpp
CorrectedHit.cpp
CalibrationSettings.cpp
Coincidence.cpp
AnalysisSettings.cpp
Plot.cpp
Destination.cpp
Crystal.cpp
Geometry.cpp
geometries/TwoModuleSetup.cpp
geometries/P6EvaluationBoard.cpp
geometries/SystemSingleLayer7.cpp
geometries/SystemSingleLayer8.cpp
geometries/SystemDualLayer.cpp
geometries/SystemHighResolutionDualLayer.cpp
geometries/SystemHighResolutionDualLayerLong.cpp
)
非常感谢！
答案 0 :(得分：0)
如果您使用的是最新版本的ROOT5或ROOT6，而不是编写或下载FindROOT.cmake，请使用当您（或您的包裹系统）构建ROOT时为您自动生成的信息
在ROOT安装中，找到包含ROOTConfig.cmake的目录。将该目录添加到CMAKE_MODULE_PATH。然后，致电find_package(ROOT)。
基本CMakeLists.txt可能如下所示：
cmake_minimum_required(VERSION 3.10.2 FATAL_ERROR)
execute_process(COMMAND root-config --prefix
COMMAND tr -d \\n
RESULT_VARIABLE RC_RESULT
OUTPUT_VARIABLE ROOT_PREFIX)
list(APPEND CMAKE_MODULE_PATH "${ROOT_PREFIX}/share/root/cmake")
find_package(ROOT)
include(CMakePrintHelpers)
cmake_print_variables(ROOT_FOUND ROOT_LIBRARIES ROOT_INCLUDE_DIRS)
运行cmake会导致：
~/rt
❯ cmake .
-- The C compiler identification is AppleClang 9.1.0.9020039
-- The CXX compiler identification is AppleClang 9.1.0.9020039
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- ROOT_FOUND="1" ; ROOT_LIBRARIES="/usr/local/lib/root/libCore.so;/usr/local/lib/root/libImt.so;/usr/local/lib/root/libRIO.so;/usr/local/lib/root/libNet.so;/usr/local/lib/root/libHist.so;/usr/local/lib/root/libGraf.so;/usr/local/lib/root/libGraf3d.so;/usr/local/lib/root/libGpad.so;/usr/local/lib/root/libTree.so;/usr/local/lib/root/libTreePlayer.so;/usr/local/lib/root/libRint.so;/usr/local/lib/root/libPostscript.so;/usr/local/lib/root/libMatrix.so;/usr/local/lib/root/libPhysics.so;/usr/local/lib/root/libMathCore.so;/usr/local/lib/root/libThread.so;/usr/local/lib/root/libMultiProc.so" ; ROOT_INCLUDE_DIRS="/usr/local/include/root"
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/nega/rt
~/rt
❯
您会注意到ROOT_FOUND已设置为TRUE，并且已填充ROOT_LIBRARIES和ROOT_INCLUDE_DIRS。您现在可以使用这些变量来设置编译和链接。
答案 1 :(得分：0)
VERBOSE = 1给出了以下错误：
[ 1%] Linking CXX shared library libglobal.dylib
cd /Users/Francis/Desktop/petaAnalysis/build/Analysis/global && /opt/local/bin/cmake -E cmake_link_script CMakeFiles/global.dir/link.txt --verbose=1
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -Wall -std=gnu++0x -O3 -DNDEBUG -dynamiclib -Wl,-headerpad_max_install_names -o libglobal.dylib -install_name /Users/Francis/Desktop/petaAnalysis/build/Analysis/global/libglobal.dylib CMakeFiles/global.dir/RawHitPeta6.cpp.o CMakeFiles/global.dir/CorrectedHit.cpp.o CMakeFiles/global.dir/CalibrationSettings.cpp.o CMakeFiles/global.dir/Coincidence.cpp.o CMakeFiles/global.dir/AnalysisSettings.cpp.o CMakeFiles/global.dir/Plot.cpp.o CMakeFiles/global.dir/Destination.cpp.o CMakeFiles/global.dir/Crystal.cpp.o CMakeFiles/global.dir/Geometry.cpp.o CMakeFiles/global.dir/geometries/TwoModuleSetup.cpp.o CMakeFiles/global.dir/geometries/P6EvaluationBoard.cpp.o CMakeFiles/global.dir/geometries/SystemSingleLayer7.cpp.o CMakeFiles/global.dir/geometries/SystemSingleLayer8.cpp.o CMakeFiles/global.dir/geometries/SystemDualLayer.cpp.o CMakeFiles/global.dir/geometries/SystemHighResolutionDualLayer.cpp.o CMakeFiles/global.dir/geometries/SystemHighResolutionDualLayerLong.cpp.o -L/Applications/root_v6.12.06/lib
Undefined symbols for architecture x86_64:
"TVersionCheck::TVersionCheck(int)", referenced from:
__GLOBAL__sub_I_Plot.cpp in Plot.cpp.o
__GLOBAL__sub_I_Destination.cpp in Destination.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [Analysis/global/libglobal.dylib] Error 1
make[1]: *** [Analysis/global/CMakeFiles/global.dir/all] Error 2
make: *** [all] Error 2