Re: [PATCH] Re: etags name collision.

[Ulrich Mueller <ulm@gentoo.org>]

>>>>> On Mon, 11 Apr 2022, Ergus  wrote:

>>> +AC_ARG_WITH([ctags],
>>> +  [AS_HELP_STRING([--with-ctags],
>>> +     [rely on System ctags; this is the default if Universal ctags or
>>> +      Exuberant ctags is installed])],
>>> +  [],
>>> +  [with_ctags=$with_features
>>> +   if test "$with_ctags" = yes; then
>>> +     (ctags --version | grep "GNU Emacs") 2>/dev/null || with_ctags=no
>> 
>> Shouldn't this use the actual name under which Emacs will install ctags?
>> That is, respect AC_ARG_PROGRAM?
>> 
> Not needed, if it uses a different name there is no collision, so the
> test is not needed.

If universal ctags is installed as "ctags", above test would detect that
the installed version is not Emacs ctags. So, installation of ctags by
Emacs would be suppressed, even if it was under a different name.

Or am I missing something here?

> The option --with-ctags means rely on System ctags. I don't think you
> need anything new.

Universal ctags isn't more "system" than Emacs. They're both packages.
(Again, this is from a distro point of view.)