Ian Jackson <ijack...@chiark.greenend.org.uk> writes: > Simon McVittie writes:
>> AIUI, it's for build systems that make decisions based on the >> "canonical" GNU architecture name of the build architecture (or, >> indirectly, the host architecture, since the default host architecture >> is "whatever the build architecture is"). For instance, "if this is >> Linux, do foo, else do bar" > Ah. I never do that. I actually test for the presence of the > features I care about. That's the gold standard, but it's not always possible. For example, see the code in libpam-afs-session's kafs directory and the corresponding Autoconf macros in m4/kafs.m4. I have to select between available kernel interfaces for creating AFS PAGs, and it's very difficult to probe, particularly given that the package may be built on a system that doesn't have AFS loaded. That said, that's one of the few packages for which I use AC_CANONICAL_HOST directly. Usually it's pulled in by Libtool, which appears to use it extensively. (Libtool is a classic example of the worst possible tool for the job, except for all of the other available tools.) -- Russ Allbery (r...@debian.org) <http://www.eyrie.org/~eagle/> -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/87r44x425r....@windlord.stanford.edu
