From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: Sporadic build warning Date: Mon, 14 Dec 2020 15:31:29 +0100 Message-ID: <877dpk4fy6.fsf@gnus.org> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36281"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Gregory Heytings To: Gregory Heytings via "Emacs development discussions." 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:260800 Archived-At: Gregory Heytings via "Emacs development discussions." writes: > While improving Lars' "emake" script, I realized that building Emacs > from a clean copy of master produces a sporadic warning. The warning > is "Grammar in python.el contains 4 shift/reduce conflicts", and it is > produced while compiling cedet/semantic/wisent/python.el. But it is, > curiously, not always produced: I just did a "make -j 4" ten times, > and it was produced eight times. Yes, there is code to inhibit that warning (when it's the expected number of shift/reduce conflicts), but there's some ordering subtlety that I've never taken the time to figure out. That is, when saying "make -jX", files are sometimes compiled in an order that makes the warning appear, and sometimes not. If somebody could figure out what's making this unstable, that'd be appreciated. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no