Am Sun, 3 Dec 2023 19:54:10 +0100
schrieb "Dr. Thomas Orgis" <thomas.orgis@uni-hamburg.de>:

> > You have to go through a "build frontend" to produce a wheel, which then
> > gets installed/repackaged for your distro. 
>
> This is obviously happening in pkgsrc.

>
> I'll do some testing tomorrow, at least.

Well, now is another day. Pkgsrc uses python -m build and I added

        -Csetup-args=-Dblas=${CBLAS_PC} -Csetup-args=-Dlapack=${LAPACK_PC}

which seems to work out fine using cblas.pc and lapack.pc in the case
of the netlib install. In fact, most linking is done only to libblas.so
instead of libcblas.so, as the linker is smart enough to throw away the
unused lib.