Re: [PATCH v3 5/5] Makefile: normalize clobbering & xargs for tags targets

On Fri, Jul 23, 2021 at 06:43:13AM -0400, Jeff King wrote:

On Thu, Jul 22, 2021 at 01:23:06AM +0200, Ævar Arnfjörð Bjarmason wrote:

quoted

This is because the xargs command may decide to invoke the program
multiple times. We need to make sure we've got a union of its results
at the end.

For "ctags" and "etags" we used the "-a" flag for this, for cscope
that behavior is the default. Its "-u" flag disables its equivalent of
an implicit "-a" flag.

Hrm, that's not the experience I get with cscope. E.g.:

Just to make it extra clear: this is not a problem introduced by your
series, since we were already using xargs with cscope. But this seems
like a good time to fix it.

-Peff