GNU bug report logs - #76441
29.4; Emacs 30.1 RC 1: makeinfo always needed when building from release archive

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Kangas <stefankangas <at> gmail.com>
Cc: p.stephani2 <at> gmail.com, 76441 <at> debbugs.gnu.org
Subject: bug#76441: 29.4; Emacs 30.1 RC 1: makeinfo always needed when building from release archive
Date: Sat, 22 Feb 2025 17:49:38 +0200

> From: Stefan Kangas <stefankangas <at> gmail.com>
> Date: Sat, 22 Feb 2025 14:22:09 +0000
> Cc: Eli Zaretskii <eliz <at> gnu.org>
> 
> Philipp <p.stephani2 <at> gmail.com> writes:
> 
> > Assuming that Texinfo isn't installed:
> >
> > $ wget https://alpha.gnu.org/gnu/emacs/pretest/emacs-30.1-rc1.tar.xz &&
> > tar xf emacs-30.1-rc1.tar.xz && cd emacs-30.1 && ./configure
> > --without-all --with-toolkit-scroll-bars && make
> >
> > [...]
> > configure: WARNING: You do not seem to have makeinfo >= 4.13.
> > You will not be able to rebuild the manuals if you delete them or change
> > their sources.
> > [...]
> > /Library/Developer/CommandLineTools/usr/bin/make -C doc/lispref info
> > cp elisp_type_hierarchy.txt ../../info/elisp_type_hierarchy.txt
> > cp elisp_type_hierarchy.jpg ../../info/elisp_type_hierarchy.jpg
> >   GEN      ../../info/elisp.info
> > make[2]: makeinfo: No such file or directory
> > make[2]: *** [../../info/elisp.info] Error 1
> > make[1]: *** [lispref-info] Error 2
> > [...]
> >
> > Maybe lines 151 and 154 in doc/lispref/Makefile.in should say 'cp -p'
> > instead of just 'cp'?  My guess is that Make tries to rebuild elisp.info
> > because elisp_type_hierarchy.* are considered new.
> >
> > Maybe 'configure' should just set MAKEINFO=':' if Makeinfo isn't found?
> 
> Eli, could you please take a look at this?

AFAIK, "cp -p" is not portable, so we cannot use it.

I actually think the problem is with this line:

  auxfiles = $(buildinfodir)/elisp_type_hierarchy.txt $(buildinfodir)/elisp_type_hierarchy.jpg

Why does it use $(buildinfodir) and not $(srcdir) ?  The manuals
should not depend on any files in $(buildinfodir), as that is the
directory for output files.

> Should we consider this a blocker for the release of Emacs 30.1?

No.  Just make a new tarball where info/elisp.info has a later time
stamp (by using 'touch'), so that people who build the tarball could
do that even if Texinfo is not installed.

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