A problem building docs

[Angelo Graziosi]

I have just upgraded from GNU/Linux Kubuntu 10.04 to Kubuntu 10.10 and 
noticed this issue building Emacs PDF manual.

Usually I bootstrap Emacs in a separate directory, 'Work', under Emacs 
tree. So

$ cd /tmp/emacs/Work/doc/emacs
$ make emacs.pdf
TEXINPUTS="/tmp/emacs/doc/emacs:/tmp/emacs/doc/emacs/../misc:" 
MAKEINFO="makeinfo --force -I /tmp/emacs/doc/emacs 
-I/tmp/emacs/doc/emacs" texi2pdf /tmp/emacs/doc/emacs/emacs.texi
egrep: Fine dell'intervallo non valida
/usr/bin/texi2dvi: cannot read .//tmp/emacs/doc/emacs/emacs.texi, skipping.
make: *** [emacs.pdf] Errore 1

(where : "egrep: Fine dell'intervallo non valida" == "egrep: End of 
intervall not valid")

Notice that in my environment:

$ echo $LANG
it_IT.UTF-8

But If I run:

$ LANG="" make emacs.pdf

it works just fine, without the 'egrep' message, and 'emacs.pdf' is 
built. It is built also if I run directly:

$ texi2pdf emacs.texi

(this time *with* the egrep message).

These issues where absent in K10.04 with the same LANG...

Ciao,
Angelo.