<p>Hi, <a href="https://github.com/rcurtin" class="user-mention">@rcurtin</a> I had the same problem... Can you help me to analyze it? Thanks a lot!</p>
<hr>
<p>[ 20%] Built target mlpack<br>
Scanning dependencies of target mlpack_sparse_coding<br>
[ 20%] Building CXX object src/mlpack/methods/sparse_coding/CMakeFiles/mlpack_sparse_coding.dir/sparse_coding_main.cpp.o<br>
[ 21%] Linking CXX executable ../../../../bin/mlpack_sparse_coding<br>
../../../../lib/libmlpack.so.2.0: undefined reference to <code>wrapper_dgelsd_'<br>
../../../../lib/libmlpack.so.2.0: undefined reference to</code>wrapper_dgesvx_'<br>
../../../../lib/libmlpack.so.2.0: undefined reference to `wrapper_ilaenv_'<br>
collect2: error: ld returned 1 exit status<br>
make[2]: *** [bin/mlpack_sparse_coding] Error 1<br>
make[1]: *** [src/mlpack/methods/sparse_coding/CMakeFiles/mlpack_sparse_coding.dir/all] Error 2</p>
<h2>make: *** [all] Error 2</h2>
<p>The output of <em>ldd libarmadillo.so</em> is as follows:</p>
<hr>
<p>ldd libarmadillo.so<br>
linux-vdso.so.1 => (0x00007ffc4e7d4000)<br>
libmkl_rt.so => /opt/intel/mkl/lib/intel64/libmkl_rt.so (0x00007f28cbdbd000)<br>
libarpack.so.2 => /usr/lib/libarpack.so.2 (0x00007f28cbb26000)<br>
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f28cb822000)<br>
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f28cb51c000)<br>
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f28cb305000)<br>
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f28caf40000)<br>
/lib64/ld-linux-x86-64.so.2 (0x000055b0bb4c6000)<br>
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f28cad3c000)<br>
libblas.so.3 => /usr/lib/libblas.so.3 (0x00007f28c9532000)<br>
liblapack.so.3 => /usr/lib/liblapack.so.3 (0x00007f28c8d96000)<br>
libgfortran.so.3 => /usr/lib/x86_64-linux-gnu/libgfortran.so.3 (0x00007f28c8a7c000)<br>
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f28c885d000)</p>
<h2> libquadmath.so.0 => /usr/lib/x86_64-linux-gnu/libquadmath.so.0 (0x00007f28c8621000)</h2>
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