Add DESTDIR support for openblas

[embray]

Implements #24024 and #23733 for openblas.

Depends on #25001
Depends on #23733

Component: build

Keywords: destdir openblas

Author: Erik Bray

Branch/Commit: b898f33

Reviewer: Julian Rüth

Issue created by migration from https://trac.sagemath.org/ticket/25052

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

b898f33

Adds DESTDIR support for openblas

[sagetrac-git]

Changed commit from 9d14972 to b898f33

[saraedum]

Reviewer: Julian Rüth

[saraedum]

comment:3

I could not find the definition of $SAGE_DESTDIR_LOCAL. Is it $SAGE_DESTDIR/$SAGE_LOCAL?

[embray]

comment:4

That's from #25001.

[saraedum]

comment:5

Ok. I had not pulled that change into my tree yet.