[tex-live] Error TL12 kpsewhich in ifxetex

[Zunbeltz Izaola]

Hi,

I just installed test verision of TL12.
I run a documment with pdflatex that was working fine with TL11. I got 
the following error

(/home/zunbeltz/texlive/2012/texmf-dist/tex/generic/ifxetex/ifxetex.sty)
! I can't find file `"|kpsewhich -var-value=max_print_line"'.
<to be read again>
                    \relax
l.57 ...kpsewhich -var-value=max_print_line"\relax

(Press Enter to retry, or Control-D to exit)


If I run on the bash kpsewhich -var-value=max_print_line
I got
79

Shell escape is activated and I am runing on ubuntu 12.04 x86.

Any idea what is going on?

Best regards,

Zunbeltz


-- 
Zunbeltz Izaola