fata error: LAPACKE_H_PATH-NOTFOUND when building OpenCV 3.2

asked 2017-01-08 02:50:56 -0600

adiperry
21 ●1 ●1 ●2

updated 2017-01-08 08:10:07 -0600

LBerger
9317 ●2 ●20 ●88 http://www.traimaocv.fr

Hello

I get this error when building OpenCV 3.2:

In file included from /home/username/opencv-3.2.0/opencv/modules/core/src/hal_internal.cpp:49:0: /home/username/opencv-3.2.0/opencv/build/opencv_lapack.h:2:45: fatal error: LAPACKE_H_PATH-NOTFOUND/lapacke.h: No such file or directory #include "LAPACKE_H_PATH-NOTFOUND/lapacke.h"

LAPACK and BLAS are installed.. Any ideas? Didn't get these errors with 3.1 or previous 2.4.X versions...

Thanks, AP

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Comments

LAPACKE_H_PATH-NOTFOUND it is like a cmake message.

Does cmake find lapack?

LBerger ( 2017-01-08 02:53:27 -0600 )edit

I was surprised to find it within include statement.. And yes, look like it does.

--     Use IPP Async:               NO
--     Use VA:                      NO
--     Use Intel VA-API/OpenCL:     NO
--     Use Lapack:                  YES (/usr/lib/libopenblas.so)
--     Use Eigen:                   YES (ver 3.2.0)
--     Use Cuda:                    YES (ver 7.5)
--     Use OpenCL:                  YES
--     Use OpenVX:                  NO
--     Use custom HAL:              NO

adiperry ( 2017-01-08 03:01:09 -0600 )edit

I'm using vs 2015 with mkl lapack so I cannot test. May be you can try to set LAPACK_INCLUDE_DIR with your own path in cmake process.

Don't forget to delete cmakecache

Wait some comments about your problem and If you cannot solve it post an issue.

In opencv 3.2 many things change about lapack and blas see https://github.com/opencv/opencv/wiki...

LBerger ( 2017-01-08 03:16:25 -0600 )edit

@adiperry

I think I had the same issue. Could you try to install:

sudo apt-get install liblapacke-dev checkinstall

Eduardo ( 2017-01-08 07:02:05 -0600 )edit

1

It seems to fix this failure. I'm getting other failures, like mentioned here: https://github.com/opencv/opencv/issu... Which also suggests it's LAPACK-related. (Ubuntu 14.04 with CUDA)

When setting "WITH_LAPACK=OFF" it works.

adiperry ( 2017-01-09 04:46:29 -0600 )edit

TL;DR

If you're using something like https://github.com/milq/scripts-ubuntu-debian/blob/master/install-opencv.sh (install-opencv.sh) from https://milq.github.io/install-opencv-ubuntu-debian/

The fix is to replace the line

cmake -DWITH_QT=ON -DWITH_OPENGL=ON -DFORCE_VTK=ON -DWITH_TBB=ON -DWITH_GDAL=ON -DWITH_XINE=ON -DBUILD_EXAMPLES=ON $

with

cmake -DWITH_QT=ON -DWITH_OPENGL=ON -DFORCE_VTK=ON -DWITH_TBB=ON -DWITH_GDAL=ON -DWITH_XINE=ON -DBUILD_EXAMPLES=ON -$

AlexLamson ( 2017-01-11 21:34:16 -0600 )edit

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2

answered 2017-03-03 01:58:25 -0600

lccurious
21 ●1 ●1

You can do sudo apt-get install liblapacke-dev checkinstall And then modify the #include "LAPACKE_H_PATH-NOTFOUND/lapacke.h" into #include "lapacke.h" and make, It works in my Ubuntu.