[mlpack-git] [mlpack] libmlpack.so.2.0: undefined reference to `wrapper_dgesv_' (#499)

[Eric]

Hi, @rcurtin I had the same problem... Can you help me to analyze it? Thanks a lot!

------------------------------------------------------------------------
[ 20%] Built target mlpack
Scanning dependencies of target mlpack_sparse_coding
[ 20%] Building CXX object src/mlpack/methods/sparse_coding/CMakeFiles/mlpack_sparse_coding.dir/sparse_coding_main.cpp.o
[ 21%] Linking CXX executable ../../../../bin/mlpack_sparse_coding
../../../../lib/libmlpack.so.2.0: undefined reference to `wrapper_dgelsd_'
../../../../lib/libmlpack.so.2.0: undefined reference to `wrapper_dgesvx_'
../../../../lib/libmlpack.so.2.0: undefined reference to `wrapper_ilaenv_'
collect2: error: ld returned 1 exit status
make[2]: *** [bin/mlpack_sparse_coding] Error 1
make[1]: *** [src/mlpack/methods/sparse_coding/CMakeFiles/mlpack_sparse_coding.dir/all] Error 2
make: *** [all] Error 2
------------------------------------------------------------------------

The output of _ldd libarmadillo.so_ is as follows:

------------------------------------------------------------------------
ldd libarmadillo.so
	linux-vdso.so.1 =>  (0x00007ffc4e7d4000)
	libmkl_rt.so => /opt/intel/mkl/lib/intel64/libmkl_rt.so (0x00007f28cbdbd000)
	libarpack.so.2 => /usr/lib/libarpack.so.2 (0x00007f28cbb26000)
	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f28cb822000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f28cb51c000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f28cb305000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f28caf40000)
	/lib64/ld-linux-x86-64.so.2 (0x000055b0bb4c6000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f28cad3c000)
	libblas.so.3 => /usr/lib/libblas.so.3 (0x00007f28c9532000)
	liblapack.so.3 => /usr/lib/liblapack.so.3 (0x00007f28c8d96000)
	libgfortran.so.3 => /usr/lib/x86_64-linux-gnu/libgfortran.so.3 (0x00007f28c8a7c000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f28c885d000)
	libquadmath.so.0 => /usr/lib/x86_64-linux-gnu/libquadmath.so.0 (0x00007f28c8621000)
------------------------------------------------------------------------

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https://github.com/mlpack/mlpack/issues/499#issuecomment-178471294
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