Re: Octave can't find BLAS or LAPACK

Please reply to the list.
You need to provide flags for C, C++, and Fortran compilers.
For gcc/clang the flag is "-m32"
Try some kind of "Hello world" program first to make sure you got them
right.

Dmitri.
-- 



On Sun, Apr 10, 2022 at 4:47 PM John Ferreira <[email protected]>
wrote:

> I tried passing CFLAG=“-mcpu=i686”
> I also tried CFLAG=“-march =i686”
>
> But I still got the same BLAS and LAPACK error.
>
> Thanks,
> John
>
> On Apr 10, 2022, at 4:34 PM, Dmitri A. Sergatskov <[email protected]>
> wrote:
>
> 
> On Sun, Apr 10, 2022 at 4:26 PM John Ferreira <[email protected]>
> wrote:
>
>> Hello,
>>
>> I am attempting to build a recent version of octave as a 32--bit i686
>> package for RHEL 7. I have installed the BLAS and LAPACK packages but
>> ./configure does not detect the libraries. I have the 32 bit packages
>> including the -devel packages installed as seen below:
>> [image: image.png]
>>
>> I have also tried passing the library paths in ./configure option as:
>> ./configure  --prefix=/home/jferreira/builds/octaveCompile
>> --with-blas=/usr/lib/libblas.so --with-lapack=/usr/lib/liblapack.so
>>
>> I still get: configure: error: BLAS and LAPACK libraries are required.
>>
>> Any help would be appreciated.
>>
>
> Did you tell your compiler to build i686 binary?
>
>
>
>>
>> Thank you,
>> John Ferreira
>>
>>
> Dmitri.
> --
>
>


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