/usr/bin/ld: cannot find -lcblas

[Wael Hamdan]

When I was compiling with "make all"
This error message occured:

/usr/bin/ld: cannot find -lcblas

collect2: ld returned 1 exit status

make: *** [.build_release/lib/libcaffe.so] Error 1

Details:  installing on Centos 6.5

I also installed atlas

Thanks 

[Axel Angel]

It means it cannot find the cblas library. If it's installed, specify its directory in Makefile.config under the LIBRARY. That's what I had to do on Linux.

[Steven Clark]

On Centos 6.6, I think I had to manually specify in Makefile.config.

Something like:

# BLAS choice:

# atlas for ATLAS (default)

# mkl for MKL

# open for OpenBlas

BLAS := atlas

# Custom (MKL/ATLAS/OpenBLAS) include and lib directories.

# Leave commented to accept the defaults for your choice of BLAS

# (which should work)!

BLAS_INCLUDE := /usr/include

BLAS_LIB := /usr/lib64/atlas

[Wael Hamdan]

Thank you for your reply

it solved the prob

[Lin Lingfeng]

Hi, Angel,
I meet the same problem,

AR -o .build_release/lib/libcaffe.a
LD -o .build_release/lib/libcaffe.so.1.0.0-rc3
/bin/ld: cannot find -lcblas
/bin/ld: cannot find -latlas
make: *** [.build_release/lib/libcaffe.so.1.0.0-rc3] error 1

[Gaurav Gautam]

I had the same problem and the first solution didn't work out for me. The problem was
that I didn't know that libblas and libcblas are different. To install cblas you should install
libatlas-base-dev from apt-get if you are on Ubuntu (or other equivalent system).

[Sidakpal Singh]

Thanks Steven! Your method works :)

Sidak.