Compilation error: undefined reference to 'cblas_dgemv' / 'cblas_dger' / 'cblas_dgemm'

[dnsmt]

On Saturday, 11 January 2020 at 16:45:22 UTC, p.shkadzko wrote:
> I am trying to run example code from 
> https://tour.dlang.org/tour/en/dub/lubeck
>
> ...
>
> This is Linux Manjaro with openblas package installed.

The Lubeck library depends on CBLAS, but the openblas package in 
the Arch repository is compiled without CBLAS. You can see that 
here (note the NO_CBLAS=1 parameter): 
https://git.archlinux.org/svntogit/community.git/tree/trunk/PKGBUILD?h=packages/openblas

Try installing the cblas package: 
https://www.archlinux.org/packages/extra/x86_64/cblas/