你好，我想问一下我通过makefile编译会报错，错误如下：
nbnn.o:nbnn.cpp:(.text+0x1828): undefined reference to `_imp___Z11annAllocPtsii'
nbnn.o:nbnn.cpp:(.text+0x1bcd): undefined reference to `_imp___ZN10ANNkd_treeC1EPPdiii12ANNsplitRule'
nbnn.o:nbnn.cpp:(.text+0x1d03): undefined reference to `_imp___Z10annAllocPtid'
nbnn.o:nbnn.cpp:(.text+0x1f4d): undefined reference to `_imp___Z12annDeallocPtRPd'
nbnn.o:nbnn.cpp:(.text+0x2ae3): undefined reference to `_imp___Z13annDeallocPtsRPPd'
nbnn.o:nbnn.cpp:(.text+0x2b3e): undefined reference to `_imp___Z8annClosev'
nbnn.o:nbnn.cpp:(.text+0x2f0a): undefined reference to `_imp___Z13annDeallocPtsRPPd'
nbnn.o:nbnn.cpp:(.text+0x2f72): undefined reference to `_imp___Z8annClosev'
Skeleton based action recognition 代码NBNN NBNN代码需要更改的地方 1.Makefile 依赖问题 2. nbnn.cpp nbnn.cpp里有ifstream.open函数在ubuntu下编译会报错更改...