Re: makeinfo: missing file argument

[Glenn Morris]

Glenn Morris wrote:

> It looks like whatever "make" is, it does not understand the $<
> construct, and silently replaces it with nothing.

Huh, according to

http://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.68/html_node/_0024_003c-in-Ordinary-Make-Rules.html

"$<" is not portable in ordinary rules.

Emacs has always used '$<' in its Make rules, but maybe all the other
instances were in non-ordinary rules. So the Emacs Makefiles should
probably be fixed to not use '$<' in ordinary rules, like the ones in
doc/*/Makefile.

Thanks for helping to track this down!