'texi2any --pdf' isn't always equivalent to 'texi2pdf'

[Ken Brown]

This is a followup to a discussion on the AUCTeX list starting here:

  http://lists.gnu.org/archive/html/auctex/2014-10/msg00018.html .

See especially

  http://lists.gnu.org/archive/html/auctex/2014-10/msg00026.html .

The issue that arose is that a pdf version of the AUCTeX manual can be 
built with the command 'texi2pdf auctex.texi' but not with 'texi2any 
--pdf auctex.texi'.  The Texinfo manual seems to say that those two 
commands should be equivalent.

Being a Texinfo novice (and illiterate in Perl), I can't provide a 
simple test case.  But here are the steps to reproduce the problem, 
using texinfo-5.2 (I've also tested with the current trunk):

git clone git://git.savannah.gnu.org/auctex.git
cd auctex
./autogen.sh
cd doc
texi2any --pdf auctex.texi

This results in many error messages:

auctex.texi:11: unknown command `AUCTeX'
auctex.texi:11: misplaced {
auctex.texi:11: misplaced }
auctex.texi:38: unknown command `tolerance'
[...]

On the other hand, 'texi2pdf auctex.texi' works fine.

Ken