bug#48598: 28.0.50; buffer-naming collisions involving bouncers in ERC

[J.P.]

Michael Albinus <michael.albinus@gmx.de> writes:

> Thinking about,
>
>     make_params: "-k -C test check-lisp-erc check-lisp-erc-erc-d 
> SELECTOR='$(SELECTOR_EXPENSIVE)'"
>
> is more future-proof. See test/README.

Ah, so it's right there in black and white, plain as day! Further
evidence I need to be culled from the herd. Thanks (of course).

On a tenuously related note, for some reason, I'm unable to run

  make -C test -j<NN> check-lisp-erc ...

without incurring a "'warning: jobserver unavailable: using -j1". Plain
old -j without the <NN> works fine, and other targets I've tried, like
check and check-expensive, seem unaffected.

(Apologies if this is nonsense or old news or should be discussed
elsewhere: a cursory search on the bug tracker and the help list came up
empty, and the few hits on emacs-devel for "jobserver unavailable" were
all build-related red herrings, like [1].)

FWIW, the course of action prescribed by the info node "(make) Error
Messages", namely, prepending a "+", seems to remedy the problem.

  diff --git a/test/Makefile.in b/test/Makefile.in
  index 3b6e116e65..c0256d770d 100644
  --- a/test/Makefile.in
  +++ b/test/Makefile.in
  @@ -247,7 +247,7 @@ define subdir_template
     SUBDIR_TARGETS += check-$(subst /,-,$(1))
     .PHONY: check-$(subst /,-,$(1))
     check-$(subst /,-,$(1)):
  -       @${MAKE} check LOGFILES="$(patsubst %.el,%.log, \
  +       +@${MAKE} check LOGFILES="$(patsubst %.el,%.log, \
                  $(patsubst $(srcdir)/%,%,$(wildcard ${srcdir}/$(1)/*.el)))"
   endef

Sorry if that's just noise. As you're well aware, I know nothing! Thanks
again.

[1] https://lists.gnu.org/archive/html/emacs-devel/2010-05/msg00720.html