bug#7102: 23.2; Makefile fontification incorrect

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Date: Sun, 26 Sep 2010 22:17:18 +0200
> Cc: Christoph <cschol2112@googlemail.com>, 7102@debbugs.gnu.org
> 
> >> Start Emacs with `emacs -Q'.
> >> Open `gmake.defs' in `nt/' directory.
> >>> From line 99 on the rest of the file is fontified mostly as comments.
> >> Note: Removing 1 of the double quotes at the end of line 99 results in 
> >> correct
> >> fontification of the buffer.
> 
> > I know nothing about this code, but since the comment in the line
> > above says that it contains a deliberate syntax error, maybe
> > makefile-mode can be forgiven for getting confused.
> 
> The problem is that makefile-mode assumes all the Makefil content
> follows the lexical rules of Make, whereas $(shell ...) does not follow
> the Make lexical rules in "...", so (as in the present case) the "..."
> may contain unmatched double quotes.  I don't actually know how the end
> of "..." is determined, tho I guess it's something like "the matching
> close-paren" probably with the possibility to escape parens
> with backslashes.

I fixed it by adding a comment line with a quote right after the
offending line (revno 101701).