Question

存在以下库文件：

cls /usr/local/Cellar/boost/1.51.0/lib $ ls libboost_program*
libboost_program_options-mt.a       libboost_program_options-mt.dylib

我在#include <boost/program_options.hpp>中添加了以下标题：

cls /usr/local/Cellar/boost/1.51.0/include $ ls boost/program_options.hpp
boost/program_options.hpp

我尝试将库链接到

-lboost_program_options-mt
-L/usr/local/Cellar/boost/1.51.0/lib

（我假设库的名称来源于文件名减去“lib”和文件结尾。如果我尝试名称boost_program_options（没有-mt），我得{ {1}}）

这是我使用该库的主要功能：

ld: library not found for -lboost_program_options

为什么此设置会给我#include <boost/program_options.hpp> #include <iostream int main(int argc, char **argv) { namespace opts = boost::program_options; opts::options_description desc("EnsembleClustering options"); desc.add_options() ("hello", "produce greeting"); opts::variables_map vmap; opts::store(opts::parse_command_line(argc, argv, desc), vmap); opts::notify(vmap); if (vmap.count("hello")) { std::cout << "Hello World" << std::endl; } }错误？

symbol(s) not found

编辑：使用make all Building target: EnsembleClustering-DPar Invoking: MacOS X C++ Linker /usr/local/bin/g++-4.7 -L"/Users/cls/workspace/STINGER/OpenMP Debug" -L"/Users/cls/workspace/gtest/lib" -L/usr/local/Cellar/log4cxx/0.10.0/lib -L/usr/local/Cellar/boost/1.51.0/lib -fopenmp -std=c++11 -o "EnsembleClustering-DPar" ./src/scoring/EdgeScoring.o ./src/scoring/ModularityScoring.o ./src/overlap/test/OverlapGTest.o ./src/overlap/Overlapper.o ./src/overlap/RegionGrowingOverlapper.o ./src/matching/Matcher.o ./src/matching/Matching.o ./src/matching/ParallelMatcher.o ./src/io/test/InputGTest.o ./src/io/CSVWriter.o ./src/io/GraphFromAdjacencies.o ./src/io/GraphIO.o ./src/io/GraphReader.o ./src/io/METISGraphReader.o ./src/io/METISParser.o ./src/io/METISToGraph.o ./src/graph/test/GraphGTest.o ./src/graph/test/STINGERGTest.o ./src/graph/Graph.o ./src/graph/GraphGenerator.o ./src/ensemble/test/EnsembleGTest.o ./src/ensemble/EnsembleClusterer.o ./src/coarsening/test/CoarseningGTest.o ./src/coarsening/ClusterContracter.o ./src/coarsening/ClusteringProjector.o ./src/coarsening/Contracter.o ./src/coarsening/GraphContraction.o ./src/coarsening/MatchingContracter.o ./src/clustering/test/ClusteringGTest.o ./src/clustering/base/Clustering.o ./src/clustering/base/ClusteringGenerator.o ./src/clustering/base/Modularity.o ./src/clustering/base/QualityMeasure.o ./src/clustering/algo/test/ClusteringAlgoGTest.o ./src/clustering/algo/Clusterer.o ./src/clustering/algo/LabelPropagation.o ./src/clustering/algo/ParallelAgglomerativeClusterer.o ./src/aux/test/AuxGTest.o ./src/aux/Noise.o ./src/aux/RandomInteger.o ./src/aux/RandomProbability.o ./src/aux/Timer.o ./src/EnsembleClustering.o -lSTINGER -lgtest -llog4cxx -lboost_program_options-mt Undefined symbols for architecture x86_64: "boost::program_options::detail::cmdline::cmdline(std::__debug::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)", referenced from: boost::program_options::basic_command_line_parser<char>::basic_command_line_parser(int, char const* const*) in EnsembleClustering.o ld: symbol(s) not found for architecture x86_64 collect2: error: ld returned 1 exit status make: *** [EnsembleClustering-DPar] Error 1检查库文件

lipo

我想链接静态库。

Answer 1

阅读错误消息

Undefined symbols for architecture x86_64:
  "boost::program_options::detail::cmdline::cmdline(std::__debug::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)", referenced from:
      boost::program_options::basic_command_line_parser<char>::basic_command_line_parser(int, char const* const*) in EnsembleClustering.o

非常清楚地说，缺少符号std::__debug::vector ，请注意std::__debug命名空间是关键所在。我怀疑你使用-D_GLIBCXX_DEBUG的迭代器调试构建了源代码，但是试图链接到没有的库，例如boost程序选项。您没有告诉我们您是如何构建翻译单元的，所以这里是sscce：

$ g++-4.8 -std=c++11 -O2 -pthread main.cpp -D_GLIBCXX_DEBUG -lboost_program_options && ./a.out
/tmp/cca1jwUx.o: In function `boost::program_options::basic_command_line_parser<char>::basic_command_line_parser(int, char const* const*)':
main.cpp:(.text._ZN5boost15program_options25basic_command_line_parserIcEC2EiPKPKc[_ZN5boost15program_options25basic_command_line_parserIcEC5EiPKPKc]+0x319): undefined reference to `boost::program_options::detail::cmdline::cmdline(std::__debug::vector<std::string, std::allocator<std::string> > const&)'
collect2: error: ld returned 1 exit status

有几种方法可以解决这个问题

从翻译单元中删除-DGLIBCXX_DEBUG标记，包括程序选项标题。
咨询您的boost软件包维护者，看看他们是否提供了使用-D_GLIBCXX_DEBUG构建的版本。在Linux上有一些变种，您可以询问MacPorts或brew用户的邮件列表。

Answer 2

由于您指定了包含，库和提供相应.dylib的位置，因此我能想到的唯一问题是您链接到的库中没有x86_64 arch

尝试使用file或lipo检查库。如果它没有显示x86_64，那就是问题。

链接到boost :: program_options无法正常工作

2 个答案:

阅读错误消息