Add destdir support and other cleanup for ntl

[embray]

This is #24024 for ntl

Depends on #25001
Depends on #23733

Component: build

Keywords: destdir ntl

Author: Erik Bray

Branch/Commit: 12a153e

Reviewer: Julian Rüth

Issue created by migration from https://trac.sagemath.org/ticket/25037

[jdemeyer]

comment:2

I think that this

     # Touch all includes such that dependency checking works properly:
     # the timestamp of the includes should be *now*, not the time when
     # the NTL package was created.
-    touch "$SAGE_LOCAL"/include/NTL/*
+    touch "$SAGE_DESTDIR_LOCAL"/include/NTL/*

is actually fixed by your changes to the tarball extraction, fixing the timestamps to the time of installation.

[embray]

comment:3

Ah, probably true; I will double-check that and remove those lines if so.

[sagetrac-git]

Changed commit from c3e89ce to 12a153e

[sagetrac-git]

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

12a153e

remove crud for touching extracted files; no longer needed since #24567

[saraedum]

Reviewer: Julian Rüth