在ubuntu16.04上编译armadillo c++库时出错

Question

我对编程相当陌生。我在库提供的安装文件中使用安装说明安装了armadillo库。

我使用以下命令安装了cmake和BLAS

sudo apt-get install cmake
sudo apt-get install liblapack-dev
sudo apt-get install libblas-dev 

之后，我使用以下命令安装了

cmake .
make 
sudo make install

然后，在编译示例程序之后，我将得到这个错误。

g++ example1.cpp -o example1 -O2 -larmadillo -llapack -lblas

错误：

/usr/bin/ld: warning: libmkl_rt.so, needed by /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libhdf5.so.101, needed by /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so, not found (try using -rpath or -rpath-link)
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Fopen'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_INT_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5check_version'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Ovisit'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Ldelete'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Dget_space'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Gcreate2'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Eget_auto2'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_LLONG_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Tinsert'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_SHORT_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Dread'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_UCHAR_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Tequal'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Sget_simple_extent_ndims'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Fis_hdf5'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Fcreate'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Screate_simple'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_DOUBLE_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Sget_simple_extent_dims'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Lexists'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Dopen2'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Tcopy'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Dget_type'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_ULLONG_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_UINT_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_FLOAT_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Eset_auto2'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_LONG_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Sclose'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5open'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Tclose'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_SCHAR_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Gopen2'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_USHORT_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Dwrite'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Dclose'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Tcreate'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5T_NATIVE_ULONG_g'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Fclose'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Gclose'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libarmadillo.so: undefined reference to `H5Dcreate2

Answer 1

解出

我的主目录中安装了anaconda库。因此cmake正在从该文件夹中检测intel、MKL和其他库。我已经更新了我的LD_LIBRARY_PATH变量，以包括该文件夹和问题得到解决。

只需将以下一行添加到/.bashrc中，以防您在文件夹中安装了anaconda

export LD_LIBRARY_PATH=/path_to_lib_folder/lib:$LD_LIBRARY_PATH