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我正在尝试链接一个使用 GSL 的开源项目，但我在 libgsl 中获得了未定义的引用。我正在使用 Eclipse，并且已将 -lgslcblas -lgsl 添加到库设置中。我错过了什么？

g++ -L/home/erwin/ochack/bin/opencog/spatial -L/home/erwin/ochack/bin/opencog/persist/sql -L/home/erwin/ochack/bin/opencog/guile -L/home/erwin/ochack/bin/opencog/util -L/home/erwin/ochack/bin/opencog/persist/xml -o "ocserver"  ./opencog/server/Agent.o ./opencog/server/BaseServer.o ./opencog/server/BuiltinRequestsModule.o ./opencog/server/CogServer.o ./opencog/server/CogServerMain.o ./opencog/server/ConsoleSocket.o ./opencog/server/DataRequest.o ./opencog/server/ExitRequest.o ./opencog/server/HelpRequest.o ./opencog/server/ListRequest.o ./opencog/server/LoadModuleRequest.o ./opencog/server/LoadRequest.o ./opencog/server/NetworkServer.o ./opencog/server/Request.o ./opencog/server/SaveRequest.o ./opencog/server/ServerSocket.o ./opencog/server/ShutdownRequest.o ./opencog/server/SleepRequest.o ./opencog/server/SystemActivityTable.o ./opencog/server/UnloadModuleRequest.o  ./opencog/atomspace/Atom.o ./opencog/atomspace/AtomSpace.o ./opencog/atomspace/AtomSpaceAsync.o ./opencog/atomspace/AtomSpaceImpl.o ./opencog/atomspace/AtomSpaceInit.o ./opencog/atomspace/AtomTable.o ./opencog/atomspace/AttentionBank.o ./opencog/atomspace/AttentionValue.o ./opencog/atomspace/ClassServer.o ./opencog/atomspace/CompositeTruthValue.o ./opencog/atomspace/CountTruthValue.o ./opencog/atomspace/FixedIntegerIndex.o ./opencog/atomspace/Handle.o ./opencog/atomspace/HandleEntry.o ./opencog/atomspace/HandleIterator.o ./opencog/atomspace/HandleSeqIndex.o ./opencog/atomspace/HandleSet.o ./opencog/atomspace/HandleTemporalPair.o ./opencog/atomspace/HandleTemporalPairEntry.o ./opencog/atomspace/HandleToTemporalEntryMap.o ./opencog/atomspace/ImportanceIndex.o ./opencog/atomspace/IndefiniteTruthValue.o ./opencog/atomspace/Link.o ./opencog/atomspace/LinkIndex.o ./opencog/atomspace/NameIndex.o ./opencog/atomspace/Node.o ./opencog/atomspace/NodeIndex.o ./opencog/atomspace/NullTruthValue.o ./opencog/atomspace/PredicateIndex.o ./opencog/atomspace/SimpleTruthValue.o ./opencog/atomspace/SpaceServer.o ./opencog/atomspace/StatisticsMonitor.o ./opencog/atomspace/StringIndex.o ./opencog/atomspace/TLB.o ./opencog/atomspace/TargetTypeIndex.o ./opencog/atomspace/Temporal.o ./opencog/atomspace/TemporalEntry.o ./opencog/atomspace/TemporalMap.o ./opencog/atomspace/TemporalTable.o ./opencog/atomspace/TemporalToHandleSetMap.o ./opencog/atomspace/TimeServer.o ./opencog/atomspace/Trail.o ./opencog/atomspace/TruthValue.o ./opencog/atomspace/TypeIndex.o ./opencog/atomspace/VersionHandle.o ./opencog/atomspace/ZMQMessages.pb.o   -lboost_filesystem -lpersist -lsmob -lgslcblas -lgsl -lboost_signals -lboost_thread -lxml -lutil -lSpaceMap -lzmq -lboost_system -lprotobuf
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../lib/libgsl.so: undefined reference to `cblas_zher2k'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../lib/libgsl.so: undefined reference to `cblas_strsv'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../lib/libgsl.so: undefined reference to `cblas_zdotc_sub'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../lib/libgsl.so: undefined reference to `cblas_dtrsm'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../lib/libgsl.so: undefined reference to `cblas_zhemm'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../lib/libgsl.so: undefined reference to `cblas_sgemv'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../lib/libgsl.so: undefined reference to `cblas_strmm'

ETC...

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2 回答 2

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我找到了解决方案：显然库的顺序很重要：-lgsl -lgslcblas 有效。

于 2012-05-24T17:34:30.960 回答
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潜在地，这里有很多可能是错误的。

  1. 您是否确定已在 Eclipse 中正确添加了这些库？例如，您不应该-lgsl在Paths and Symbols -> Libraries中指定。Eclipse 添加了前面的-l内容，因此您指定的只是gsl.
  2. 您是否在实际尝试运行的构建变体中添加了库路径？例如，当您尝试进行 Release 变体构建时，您可能只为 Debug 变体指定了库路径。

或者，（这实际上只是一个猜测），科学库允许您使用 BLAS 的外部版本是相当普遍的。有时，他们的配置设置甚至坚持将外部 BLAS 作为默认设置。-lcblas作为链接选项传递是否有助于解决这些错误？

于 2012-05-24T15:39:54.713 回答