Re: [PATCH 3/3] Makefile: don't use "FORCE" for tags targets

On Tue, Jun 22, 2021 at 04:21:27PM +0200, Ævar Arnfjörð Bjarmason wrote:

Remove the "FORCE" dependency from the "tags", "TAGS" and "cscope.out"
targets, instead make them depend on whether or not the relevant
source files have changed.

I'm also removing the "-o" option from them, that seems to have been
cargo-culted when they were initially added in f81e7c626f3 (Makefile:
Add TAGS and tags targets, 2006-03-18). It would make sense to use
that option if we had been appending to tag files, it doesn't make any
sense that it was used after we'd just removed the files file being
appended to.

You mean "-a" in this second paragraph, right?

I think it would help if xargs splits the source file list across
multiple invocations of the command.

-Peff