I'm trying to link an open source project that uses GSL and I get undefined references in libgsl. I'm using eclipse and I've added -lgslcblas -lgsl to the libraries setting. What am I missing?
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...
我找到了解决方案:显然库的顺序很重要:-lgsl -lgslcblas有效。
Potentially, there are lots of things that could be wrong here.
-lgsl
in Paths and Symbols -> Libraries . Eclipse adds the preceding -l
itself so all you specify is gsl
. Alternatively, (and this is really just a guess), it's reasonably common for scientific libraries to allow you to use an external version of BLAS. Sometimes their configuration settings even insist on external BLAS as a default. Does passing -lcblas
as a link option help out with these errors?
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